Test Report. Apricus Solar Co., Ltd. Multi-function differential controller

Transcription

1 Test Report Applicant: roduct: Trade mark Model No: Apricus Solar Co., Ltd. Multi-function differential controller Apricus MFC-1 repared by: Most Technology Service Co., Limited The safety testing has been performed on the submitted samples and found in compliance with the council LVD directive 2006/95/EC. Most Technology Service Co., Limited No.5, 2nd Langshan Road, North District, Hi-tech Industry ark, Nanshan, Shenzhen, Guangdong, China hone: Fax:

2 TEST Report EN Automatic electrical controls for household and similar art 1: General requirements EN art 2-9: particular requirements for Temperature sensing controls Report Reference No...: Tested by (Name +signature) : MTS/YEZ/E Isaac Liang Approved by (Name +signature)...: Yvette Zhou Date of issue : January 13, 2011 Testing laboratory Name.....: Address...: Testing location... : Applicant Name : Address.. : Most Technology Service Co., Limited No.5, 2 nd Langshan Road, North District, Hi-tech Industry ark, Nanshan, Shenzhen, Guangdong, China Same as above Apricus Solar Co., Ltd. 19 u Si Road, ukou New & High Tech Development Zone Test Specification Standard.....: rocedure deviation... : Non-standard test method... : EN :2000+A12:2003+A1:2004+A13:2004+A14:2005+A1 5:2007+A16:2007+A2:2008 & EN :2002+A1:2003 +A11:2003+A2:2005+A12:2004 Test item description Description..: Trademark. : Model/type reference.. : Manufacturer...: Address... : Multi-function differential controller MFC-1 Apricus Solar Co., Ltd. 19 u Si Road, ukou New & High Tech Development Zone Test item particulars : Rating. : AC110V-240V, 50/60Hz, 4W Operation temperature : age 2 of 59

3 ossible test case verdicts: - test case does not apply to the test object..: - test object does meet the requirement.: (ass) - test object does not meet the requirement..: F (Fail) General remarks The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Issuing testing laboratory. "(see appended table)" refers to a table appended to the report. (see remark #) refers to a remark appended to the report. (see Annex #) refers to an annex appended to the report. Throughout this report a comma (point) is used as the decimal separator. General roduct information: 1. The product is multifunction controller offers a wide range of functionality for solar domestic hot water systems as well as solar thermal systems integrated with pool and space heating. 2. All tests are performed by MFC-1. Copy of marking plate (representative): Summary of Testing and Conclusions - The test results fulfilled the safety requirements of standard. age 3 of 59

4 6. CLASSIFICATION 6.1 According to nature of supply Control for a.c. only Control for d.c. only Control for a.c. and d.c Control for specific supplies or multiple supplies Only one According to type of load to be controlled by each circuit of the control Circuit for a substantially resistive load with a power factor not less than Circuit suitable for either a resistive load or for an inductive load with a power factor not less than 0.6 or a combination of both Circuit for declared specific load Solar domestic hot water systems Circuit for a current less than 20mA Circuit for a.c. motor load whose characteristics are defined by the control manufacturer s declaration Circuit for pilot load 6.3 According to their purpose thermostat temperature limiter thermal cut-out Void energy regulator timer time switch manual control age 4 of 59

5 EN EN Clause Requirement Test Result - Remark Verdict sensing control electrically operated control motor protector thermal motor protector electrically operated mechanism protective control operating control 6.4 According to features of automatic action type 1 action type 2 action Type 1 actions and Type 2 actions are further classified according to one or more of the Type 2.N following constructional or operational features: - for sensing actions, no increase in the operating value as a result of any leakage from the sensing element (EN ) an action which operates after a declared thermal cycling test (EN ) - an action which is initiated only after a push-and-turn or pull-and-turn actuation and in which only rotation is required to return the actuating member to the off or rest position (EN ) - an action which is initiated only after a push-and-turn or pull-and-turn actuation (EN ) 6.5 According to the degree of protection and control pollution degree According to degrees of protection provided by enclosures against ingress of solid objects and I20 dust age 5 of 59

6 EN EN Clause Requirement Test Result - Remark Verdict According to degree of protection provided by enclosures against harmful ingress of water I According to the pollution degree of degrees for which the control is declared. Degree II 6.6 According to method of connection Control with at least one terminal intended for the connection of fixed wiring Control with at least one terminal intended for the connection of a flexible cord. Control without any terminals intended for the connection of an external conductor According to ambient temperature limits of the switch head Control with a switch head for use in an ambient temperature between a minimum value 0, and a maximum value of 55. Control with a switch head intended to be used in an ambient temperature having a maximum value other than 55 but no less than 30, or a minimum value lower than 0. Controls for use in or on cooking appliances (EN ) Controls for use in or on ovens of the self-cleaning type (EN ) Controls for use in or on food-handling appliances (EN ) According to protection against electric shock For an integrated control For an incorporated control for use in: Class 0 equipment Class 0I equipment age 6 of 59

7 Class I equipment Class II equipment Class III equipment For an in-line cord control, a free standing control, or an independently mounted control: Of class Of class 0I Of class I Of class II Of class III 6.9 According to circuit disconnection or interruption Full-disconnection Micro-disconnection Micro-interruption All-pole disconnection 6.10 According to number of cycles of actuation of each manual action cycles cycles cycles cycles cycles cycles cycles According to number of automatic cycles of each automatic action According to temperature limits of the mounting surface of control cycles age 7 of 59

8 Control suitable for mounting on a surface which is not more than 20K above the ambient temperature Control suitable for mounting on a surface which is more than 20K above the ambient temperature According to value of proof tracking index for the insulation material used Material of material group IIIb with a TI of 100 and up to but excluding 175; Material of material group IIIa with a TI of 175 and up to but excluding 400 ; Material of material group II with a TI of 400 and up to but excluding 600; Material of material group I with a TI of 600 and over According to period of electrical stress across insulating parts supporting live parts and between live parts and earthed metal 6.15 According to construction Integrated control Incorporated control In-line cord control Free-standing control Independently mounted control for Surface mounting Flush mounting anel mounting Controls having parts containing liquid metal. (EN ) 6.16 According to ageing requirements of the equipment in which, or with which, the control is intended to be used 6.17 According to use of the thermistor age 8 of 59

9 6.18 According to software class 7. INFORMATION 7.1 General requirements 7.2 Methods of providing information Marking and document 7.3 Class II symbol 7.4 Additional requirements for marking 8. ROTECTION AGAINST ELECTRIC SHOCK 8.1 General requirements Adequate protection against accidental contact with live parts in any position of use when the switch is mounted and operated as in normal use. For class II controls and controls for class II equipment, accidental contact with metal parts separated from hazardous live parts by basic insulation. The insulating properties of lacquer, enamel, paper, cotton, oxide film on metal parts, beads and sealing compounds shall not be relied upon to No such parts give the required protection against accidental contact with hazardous live parts. Class II controls are connected in normal use to the gas supply mains or to the water supply mains, any metal parts conductively connected to the gas pipes or in electrical contact with the water system shall be separated from hazardous live parts by double insulation or reinforced insulation ermanently connected to fixed wiring shall be so designed that the required degree of protection against electric shock is not impaired by the installation of the control For integrated and incorporated controls, the test applied to accessible control age 9 of 59

10 For in-line cord and free-standing controls, the tests is only applied to accessible parts when it is mounted in any position in accordance with the manufacturer s declarations For independently mounted controls, the test is made when the control is mounted as in normal use, fitted with cable of the smallest or of the largest nominal cross-sectional area Inspection checked See annex H Between class III circuits and circuits connected to the mains or earth, insulation external to the safety isolating transformer shall comply with all requirements for class II insulation 8.2 Actuating members and actuating means An actuating member shall not be live An actuating member is insulated and not accessible when it is removed. Actuating members and handles held in normal use is adequately covered by insulating material 8.3 Capacitors For class II in-line cord controls and independently mounted controls, capacitors shall not be connected to accessible metal parts. Controls intended to be connected to the supply by means of a plug shall be so designed that in normal use there is no risk of electric shock from charged capacitors when touching the pins of the plug. 8.4 Covers and uninsulated live or hazardous parts The cover fixing screws are not accessible 9. ROVISION FOR ROTECTIVE EARTHING 9.1 General requirements age 10 of 59

11 9.2 Class II and class III controls shall have no provision for protective earthing 9.3 Adequacy of earth connections General requirements Fixed wiring and methods X and M External conductors Size of accessible earthing terminals Size of non-accessible earthing terminals Locking of earthing terminals 9.4 Corrosion resistance Materials Copper alloy Frames or enclosures of aluminum lastic enclosure 9.5 Other requirements Detachable parts Incorporated control 10. TERMINALS AND TERMINATIONS 10.1 Terminals and terminations for external copper conductors Terminals for fixed wiring and for non-detachable cords using attachment methods X and M, connection is made by means of screws, nuts or Screws terminals equally effective devices or methods Terminals or terminations for non-detachable cords using attachment methods Y and Z shall satisfy the appropriate requirements and may require the use of special purpose tools for connection or disconnection Screws and nuts shall have a metric ISO thread or a thread of equivalent effectiveness Soldered, welded, crimped or similar terminations age 11 of 59

12 Soldered, welded, crimped or similar terminations shall not be used for the connection of non-detachable cords using attachment methods X and M. Terminals for fixed wiring or non-detachable cords using attachment methods X or M shall allow at least the connection of conductors having nominal cross-sectional areas Terminals for fixed wiring or non-detachable cords using attachment methods X or M shall be so fixed that he terminal does not work loose Terminals for fixed wiring or non-detachable cords using attachment methods X or M, clamp the conductor between metal surfaces with sufficient clamp the conductor between metal surfaces with sufficient. Terminals for fixed wiring and non-detachable cords using attachment method X shall not require special preparation of the conductor in order to effect correct connection. Terminals for fixed wiring and non-detachable cords using attachment methods X or M, neither the conductor nor a wire of a stranded conductor can slip out Terminals shall be so designed that they clamp the conductor reliably Terminals do not attain excessive temperature in normal use Each core contained within any fixed wiring sheath or flexible cord sheath can be terminated in reasonable proximity to the other cores within the same sheath. Terminals for non-detachable cords using attachment methods X or M, there is no risk of accidental contact between live parts and accessible metal parts age 12 of 59

13 Circuit continuity is not maintained by pressure transmitted through insulating material other than ceramic, or other insulating material with characteristics no less suitable Screws and threaded parts of terminals shall be of metal Copper alloy Terminals of the pillar type and the mantle type allow an adequate length of conductor to be introduced into, and pass beyond the edge of the screw, to ensure that the conductor does not fall out Flying leads (pig tails) 10.2 Terminals and terminations for internal conductors No such terminals Terminals and terminations allow the connection of conductors having nominal cross-sectional areas Terminals and terminations are suitable for their purpose Soldered terminals are used Flat push-on connectors Tables forming part of a control with the dimensional requirements Tabs forming part of a control consist of material and plating appropriate to the maximum temperature of the tabs Tabs forming part of a control have adequate strength to allow the insertion and withdrawal of receptacles without damage to the control such as to impair compliance with this standard. Tabs forming part of a control are adequately spaced to allow the connection of the appropriate receptacles. Terminals and terminations for integrated conductors age 13 of 59

14 11. CONSTRUCTION REQUIREMENTS 11.1 Materials Insulating materials Impregnated Wood, cotton, silk, ordinary paper and similar fibrous or hygroscopic material are not be used as insulation Current-carrying parts Non-detachable cords Non-detachable cords of class I controls shall have a green/yellow conductor insulation Conductor insulation identified by the color combination green/yellow shall not be connected to terminals or terminations other than earthing terminals or terminations. Manufacturer does not provide cords in the appliance arts containing liquid metal (EN ) 11.2 rotection against electric shock Double insulation If the basic and the supplementary insulation cannot be tested separately, or if satisfaction with regard to the properties of both insulations cannot be obtained in another way, the insulation is regarded as reinforced insulation Infringement of double or reinforced insulation Integrated conductors Flexible cord sheaths See annex H Actuation and operation Full disconnection Micro-disconnection Reset buttons Setting by the manufacturer age 14 of 59

15 Contacts General Contacts for full-disconnection and micro-disconnection The requirements of and shall not apply to contacts shows they cannot be operated on-load or are not intended to be operated on-load, nor to contacts which do not arc under conditions of normal use Contacts rest position ull-cord actuated control 11.4 Actions Combined actions Setting by the manufacturer Type 2 action Capacitors shall not be connected across the contacts of a thermal cut-out. (EN ) Constructions requiring a soldering operation to reset thermal cut-outs are not permitted. (EN ) Type 1.A or 2.A action Type 1.B or 2.B action Type 1.C or 2.C action Type 1.D or 2.D action Type 1.E or 2.E action Type 1.F or 2.F action Type 1.G or 2.G action Type 1.H or 2.H action Type 1.J or 2.J action Type 1.K or 2.K action age 15 of 59

16 In the event of a break in the sensing element, the declared disconnection or interruption is provided before the sum of the declared operating value and drift is exceeded. (EN ) Type 2.K action may also be achieved by compliance with a), b) or c). (EN ) a) Two sensing elements operating independently from each other and actuating one switched head. - b) Bi-metallic sensing elements c) The bulb and capillary of a temperature sensing control which is actuated by a change in the pressure of a fluid confined in the bulb and capillary Type 1.L or 2.L action Type 1.M or 2.M action See annex H Type 2.N action (EN ) In the event of a leak in the sensing element, or in any other part between the sensing element and the switch head, the declared disconnection or interruption is provided before the sum of the declared operating value and drift is exceeded Type 2. (EN ) Bi-metallic single-operation device (EN ) Type 1.X or 2.X (EN ) Type 1.Z or 2.Z (EN ) 11.5 Openings in enclosures No drain holes 11.6 Mounting of controls The methods of mounting in accordance with the manufacturer's declaration do not adversely affect compliance with this standard. age 16 of 59

17 Control cannot rotate or be otherwise displaced, and cannot be removed from an equipment without the aid of a tool Mounting of independently mounted controls Independently mounted controls other than those declared for panel mounting shall either: - fit a standard box as declared; be supplied with a conduit box if a special conduit box is required; or be suitable for surface mounting on a plane surface A special conduit box is required Independently mounted controls for surface mounting used with buried installation not using an outlet box Independently mounted controls for surface mounting used with exposed wiring shall be provided with cable or conduit entries, knock-outs, or glands Independently mounted controls for surface mounting or the sub-bases for such controls, shall be constructed in such a manner that the terminals for external conductors are accessible Controls intended for mounting on an outlet box or similar enclosure shall have wiring terminals, other live parts and sharp-edged metal parts, earthed or not, located or protected Back wiring terminals shall be recessed or be protected by lose-fitting barriers or insulating materials 11.7 Attachment of cords Flexing The flexible cords of in-line cord and free standing controls shall be capable of withstanding the flexing likely to occur in normal use age 17 of 59

18 Cord anchorages 11.8 Size of cords non-detachable 11.9 Inlet openings Equipment inlets and socket-outlets Requirements during mounting, maintenance and servicing Covers and their fixing For other than integrated controls, user maintenance or servicing of the control, the removal of a cover or cover plate shall not affect the setting of the control if this might impair compliance with this standard. The fixing of covers shall be such that they cannot be displaced Covers of enclosures Glass covering an opening Non-detachable parts A cove shall not be released when a squeezing force of up to 45 N combined with up to 15 N for the pull test is applied at any two points Cover fixing means Actuating member A control shall not be damaged when its actuating member is mounted or removed in the intended manner Actuating member shall not be removable without the use of a tool Actuating member shall not be possible to fix the actuating member in an incorrect position arts forming supplementary or reinforced insulation Transformer, Y cap and U Sleeving as supplementary insulation ull-cords age 18 of 59

19 Insulating linings Controls using software rotective controls and components of protective control systems 12. MOISTURE AND DUST RESISTANCE 12.1 rotection against ingress of water and dust Controls shall provide the degree of protection against ingress of water and dust appropriate to their I classification when mounted and used in I 20 the declared manner After the appropriate test the control shall withstand the electric strength test. Controls are allowed to stand in normal test room atmosphere for 24 h before being subjected to the appropriate test. Controls with a non-detachable cord using attachment method X are fitted with the appropriate conductors with the smallest cross-sectional area Detachable parts are removed and subjected to the tests with the main part. No detachable part Sealing rings of glands and other sealing means are aged in an atmosphere having the composition and pressure of the ambient air 12.2 rotection against humid conditions All controls shall withstand humid conditions which may occur in normal use Humidity treatment For in-line cord, free-standing, independently mounted controls, the test is conducted immediately after the humidity treatment. The control shall show no damage so as to impair compliance with this standard. age 19 of 59

20 Cable inlet openings, if any, and drain holes are left open. If a drain hole is provided for an IX7 control, it is opened. Detachable parts are removed and subjected, if necessary, to the humidity treatment with the main part. Before being placed in the humidity cabinet, the sample is brought to a temperature between t and (t + 4) C. The humidity treatment is carried out in a humidity cabinet. After this treatment the tests of clause 13 are made either in the humidity cabinet. 2 days for I 20 controls Humidity: 93% Temperature: 25 C Refrigeration controls (EN ) 13. ELECTRIC STRENGTH AND INSULATION RESISTANCE 13.1 Insulation resistance Compliance is checked by the test. Measuring reinforced or supplementary insulation to other than metal parts, each appropriate surface of the insulation is covered with a metal See appendix table foil to provide an electrode for the test. The insulation resistance is measured with a d.c voltage of approximately 500 V applied, the measurement being made 1 min after application See appendix table of the voltage Measure value of the insulation resistance See appendix table 13.2 Electric strength See appendix table Measurement value See appendix table Measuring reinforced or supplementary insulation to other than metal parts, each appropriate surface of the insulation is covered with a metal foil to provide an electrode for the test. age 20 of 59

21 The insulation is subjected to a voltage of substantially sine-wave form, having frequency of 50 Hz or 60 Hz. Initially not more than half the prescribed voltage is applied, then it is raised rapidly to the full value. 14. HEATING 14.1 Controls and their supporting surfaces shall not attain excessive temperatures in normal use. The temperatures did not exceed the limited values Compliance is checked by the test of 14.2 to During this test, the temperatures shall not exceed the values See appendix table Terminals and terminations which are intended for the connection of external conductors shall be 14.2 fitted with conductors of the intermediate cross-sectional area appropriate to the type of conductor and rating Attachment methods M, Y or Z are used then the cord declared or supplied shall be used for the test. A terminal is suitable for both flexible cords and for fixed conductors, then the appropriate flexible cord is used. Terminals not intended for the connection of external conductors shall be fitted with conductors of the minimum cross-sectional area 14.3 In-line cord controls are stood or rested on a dull black painted plywood surface Independently mounted controls are mounted as in normal use. Controls shall be connected to a supply having the 14.4 most unfavourable voltage between 0,9 and 1,1 1.1X240V= 264V times rated voltage Circuits and contacts not intended for external loads shall be specified by the manufacturer. age 21 of 59

22 Actuating members are placed in the most unfavourable position. Contacts required to be closed initially for the purpose of this test are closed at the rated current and the rated voltage of the circuit For temperature sensing controls the temperature sensing element is raised or lowered to a temperature which differs from the measured operating temperature under the conditions For all other sensing controls the sensing element shall be maintained such that the contacts are in the closed position, but are as near the point of opening as is practical. It may be necessary to raise or lower, the value of the activating quantity beyond the operating value so as to cause operation and then to return the value of activating quantity to the required level. For other automatic controls the most arduous operating sequence or segment of the operating sequence shall be selected. If the control starts to operate during this test, the control is reset so that the contacts will remain closed. If resetting to reclose the contacts is not practical, then the test is discontinued. Controls are tested in an appropriate heating and/or refrigerating apparatus. The temperature of the switch head is maintained between Tmax and either (Tmax+5) or 1.05 times Tmax, whichever is greater In-line cord controls, independently mounted controls and those parts of integrated and incorporated controls which are accessible when the control is mounted as in normal use shall be in a room temperature in the range of 15 C to 30 C age 22 of 59

23 The temperatures specified for the switch head, 14.6 the mounting surfaces and sensing element shall be attained in approximately 1 h The electrical and thermal conditions are maintained for 4 h, or for 1 h after steady state 1h after steady state For controls designed for short-time or intermittent operation the resting time(s) shall be included in the 4 h. The temperature of the medium in which the 14.7 switch head is located, and the value shall be measured as near as possible to the center of the space occupied The temperature of the parts and surfaces Measured by fine wire thermocouples Thermocouples used for determining the temperature of supporting surfaces are attached to the back of small blackened discs of copper or brass, 15 mm in diameter and 1 mm thick, which are flush with the surface. In determining the temperature of actuating members and other handles, knobs, rips and the like, consideration is given to other parts which See appendix table are gripped in normal use, and if of non-metallic material to parts in contact with hot metal. The temperature of electrical insulation, other than that of windings, is determined on the surface See appendix table of the insulation If the maximum permitted temperature of a 14.Z1 winding or core lamination exceeds the value specified for the test six additional samples shall be subjected to the tests. 15. MANUFACTURING DEVIATION AND DRIFT Those parts of controls providing a Type 2 action shall have adequate consistency of manufacture 15.1 with regard to their declared operating value, operating time, or operating sequence age 23 of 59

24 Compliance is checked by the appropriate tests of this clause. For those controls which are completely or partially destroyed during their normal operation, the tests of the appropriate subclauses of clause 17 are deemed to be sufficient. For those controls which are dependent on the method of mounting on or incorporation in an equipment for their operation the manufacturing deviation and the drift shall be declared separately and be comparative values. Alternatively, the declared manufacturing deviation and drift may be expressed separately as a tolerance value to the declared operating value.( EN ) 15.5 The consistency shall be determined Test apparatus used shall be such that the control is mounted in the manner declared by the manufacturer. For sensing controls the apparatus shall preferably be such that the normal operation of the control is used to control the apparatus. Because this test is made to determine comparative values rather than response values, the form of the apparatus is not critical The electrical conditions of the test shall normally be V R max and I R max unless different conditions have been declared in requirement 41 of table 7.2. For sensing controls the rate of change of activating quantity shall be any suitable value unless specific values have been declared in requirement 37 of table 7.2 The appropriate operating value, operating time or operating sequence shall be recorded for each sample. age 24 of 59

25 The recorded values are also used as reference values for each sample, so that the repeat tests after the environmental tests of clause 16 and the endurance test of clause 17 will enable drift to be determined. For those controls which are not dependent for their operation on the method of mounting on Alternatively, the manufacturing deviation shall be according to annex AA. (EN ) The manufacturing deviation, and/or the drift may be an absolute value. The appropriate operating value, operating time or operating sequence shall be initially measured for all samples and be within the limits declared by the manufacturer. Test apparatus shall be such as to simulate the most arduous conditions of normal use declared. If a drift value has been declared separately in requirement 42 of table 7.2, the measured values for each sample shall be recorded as a reference value, 15.7 See annex J ENVIRONMENTAL STRESS 16.1 Controls which are sensitive to the environmental stresses of temperature shall withstand the level of the appropriate stress likely to occur in transportation and storage Compliance is checked by the appropriate tests of 16.2, carried out with the control being left in the same condition declared as a transportation condition Environmental stress of temperature The effect of temperature is tested as follows: the entire control shall be maintained at a temperature of ( 10 ± 2) C for a period of 24 h. age 25 of 59

26 the entire control shall then be maintained at a temperature of (60 ± 5) C for a period of 4 h The control is not energized during either test After each test a control with an actuating member or actuating means shall be capable of being actuated to provide correctly the class of circuit disconnection declared For controls with Type 2 actions 17. ENDURANCE 17.1 General requirement Controls shall withstand the mechanical, electrical and thermal stresses that occur in normal use. Controls with Type 2 actions shall operate such that any operating value, operating time or operating sequence does not change by an amount greater than the declared drift. Compliance with and is checked by the tests of as indicated in Test sequence and conditions In general, the sequence of tests is: - - an ageing test specified in 17.6 (This test applies only to those actions classified as Type 1.M or 2.M) - an overvoltage test of automatic action at accelerated rate specified in a test of automatic action at accelerated rate specified in 17.8; - a test of automatic action at slow rate specified in an overvoltage test of manual action at accelerated speed specified in 17.10; - a test of manual action at slow speed specified in age 26 of 59

27 a test of manual action at high speed specified in a test of manual action at accelerated speed specified in The electrical, thermal and mechanical conditions of test shall in general be those specified in 17.2, 17.3 and 17.4 Tests for a manual action forming part of an automatic action are normally specified in the subclause appropriate to the automatic action. After all the tests specified the samples shall meet the requirements of unless otherwise specified in the appropriate part See annex H Electrical conditions for the tests Each circuit of the control shall be loaded according to the ratings declared by the manufacturer In all countries which use an overvoltage test The overload tests are performed on a single pole or throw at a time, with all other poles or throws at normal load. There is an earthed neutral system, the enclosure shall be connected through a 3 A cartridge fuse to the protective conductor of the circuit, For Type 1.G or 2.G actions, or other off-load actions, auxiliary switches are used to simulate the intended operation during the test Thermal conditions for the tests For parts of the control other than any temperature sensing element During the tests of 17.8 and 17.13, the temperatures of are applied for the last 50 % of each test 17.4 Manual and mechanical conditions for the tests age 27 of 59

28 For all manual actions each cycle of actuation shall consist of a movement of the ctuating member such that the control is successively moved into all positions appropriate to that action and then returned to its starting point The speed of movement of the actuating member During the slow speed test of : During the accelerated speed test of : Additional lubrication shall not be applied during these tests Dielectric strength requirements After all the tests of this clause, the requirements of 13.2 shall apply, with the exception that the samples are not subjected to the humidity treatment before the application of the test voltage Ageing test Type 2. N type During this test the sensing element shall be maintained at that value of the activating quantity determined and used in clause 14. If during this test the action being tested operates, the value of the activating quantity is increased or decreased to cause reverse operation and then returned to a value differing by a quantity "x" from the original to enable the test to be resumed. Overvoltage test of automatic action at accelerated rate The electrical conditions shall be those specified for overvoltage in The thermal conditions shall be those specified in The method and rate of operation For Type 2 sensing actions, overshoot at each operation shall be between the values declared in 7.2. age 28 of 59

29 It is permissible in the case of sensing actions to increase the rates of change of activating quantity, or for other Type 1 actions to override the prime mover between operations, provided that this does not significantly affect the results. The number of automatic cycles for the test is either one tenth of the number declared in 7.2, or 200, During the test actuating members are placed in their most unfavourable position Test of automatic action at accelerated rate The electrical conditions shall be those specified in The thermal conditions shall be those specified in The method and rate of operation shall be as used during the test of The number of automatic cycles For slow-make, slow-break automatic actions only 75 % of the number of automatic cycles referred to in shall be carried out during this test. The number of automatic and manual cycles for independently mounted and in-line cord controls shall be as indicated in clause CC.1, unless a higher number is declared by the manufacturer. (EN ) 17.9 Test of automatic action at slow rate Slow-make, slow-break automatic actions shall be tested for the 25 % remainder of the number of automatic cycles specified in 17.8 The electrical and thermal conditions shall be as specified in 17.2 and The method of operation is either by imposing a change of value of activating quantity on the sensing element, or by the prime mover. age 29 of 59

30 Such monitoring is also recommended for other controls to determine consistency of testing. If only the make or the break is a slow automatic action, then it may, by agreement between the testing authority and the manufacturer, be possible to accelerate the rest of the action, to which the details of 17.8 apply Overvoltage test of manual action at accelerated speed The electrical conditions shall be those specified for overvoltage in 17.2 The thermal conditions shall be those specified in The method of operation shall be that specified in 17.4 for accelerated speed Test of manual action at slow speed The electrical conditions shall be those specified in The thermal conditions shall be those specified in The method of operation shall be that specified in 17.4 for slow speed. The number of cycles of actuations shall be either one tenth of the number declared in 7.2 or 100, whichever is smaller Test of manual action at high speed The electrical conditions shall be those specified in The thermal conditions shall be those specified in The method of operation shall be that specified in 17.4 for slow speed The number of cycles of actuation is Test of manual action at accelerated speed The electrical conditions shall be those specified in age 30 of 59

31 The thermal conditions shall be those specified in The method of operation shall be that specified in 17.4 for slow speed. The number of cycles of actuation is that number declared in 7.2 less the number actually made during the tests of 17.10, and During the test, the failure of any component part of a Type 1 action other than a protective control which is not significant according to the requirements of the test, shall not be a cause of rejection providing that it can be repaired or replaced, or that the test can be continued in an agreed alternative manner such that the total required number of cycles of actuation can be completed Evaluation of compliance Bi-metallic SODs (EN ) Test for particular purpose controls Thermostats (EN ) Independently mounted room thermostats for operation above 50 V (EN ) Temperature limiters (EN ) Thermal cut-outs (EN ) A control has two or more electrical ratings (EN ) Evaluation of materials (EN ) Over-temperature test of sensing element (EN ) After test, the control complied with evaluation. d Type 2. cycling test (EN ) to See annex J MECHANICAL STRENGTH age 31 of 59

32 18.1 General requirements Controls shall be so constructed as to withstand the mechanical stress that occurs in normal use. Actuating members of class I and class II controls shall either have adequate mechanical strength or be such hat adequate protection against electric shock is maintained Integrated controls and incorporated controls are not tested as in 18.2 as their impact resistance will be tested by the equipment standard. Compliance is checked by the tests of the appropriate subclauses 18.2 to 18.8 inclusive, carried out sequentially on one sample. After the appropriate tests the control shall show no damage to impair compliance with this standard Impact resistance In-line cord, free-standing and independently mounted controls are checked by applying blows to the sample by means of the apparatus All surfaces which are accessible when the control is mounted as in normal use are tested with the apparatus. The control is held in contact with a vertical sheet of plywood 8 mm thick and 175 mm square without any metallic back plate. Blows are applied to all accessible surfaces, including actuating members, at any angle, the test apparatus being calibrated to deliver an energy of (0,5 ± 0,04) Nm. Foot actuated controls shall be subject to the same test, but using a test apparatus calibrated to deliver an energy of (1,0 ± 0,05) Nm. For all such surfaces three blows are applied to every point that is likely to be weak. age 32 of 59

33 Care must be taken that the results from one series of three blows does not influence subsequent series. If there is a doubt whether a defect has been caused by the application of preceding blows, this defect is neglected and the group of three blows which led to the defect is applied to the same place of a new sample, which shall then withstand the test. Signal lamps and their covers are only tested if they protrude from the enclosure by more than 10 mm or if their area exceeds 4 cm² 18.3 Void Void Free-standing controls Free-standing controls shall be additionally checked by the test of and using the apparatus shown in figure 4. Two metres of flexible cord of the lightest type used in shall be connected to the input terminals and secured as intended. After the test, the sample shall be evaluated as in In-line cord controls In-line cord controls other than free-standing controls shall be additionally tested in a tumbling barrel as shown in figure 5. Controls with non-detachable cords using attachment method X shall be fitted with the flexible cord or cords having the smallest cross-sectional area specified in and a free length of approximately 50 mm. The sample falls from a height of 50 cm onto a steel plate, 3 mm thick, age 33 of 59

34 In-line cord controls with a mass exceeding 200 g are not tested in the tumbling barrel, but shall be subjected to the test of The barrel is turned at a rate of five revolutions per min, 10 falls per min thus taking place. After this test, the control shall be evaluated as in Special attention is paid to the connection of flexible cord or cords ull-cord actuated controls ull-cord actuated controls shall be additionally tested as in and The control shall be mounted as declared by the manufacturer, and the pull-cord shall be subjected to a force, applied without jerks, first for 1 min in the normal direction, and then for 1 min in the most unfavourable direction, but not exceeding 45 from the normal direction The values of the force are shown in table After this test the control shall be evaluated as in Foot actuated controls Controls actuated by foot shall be additionally tested as follows: The control is subjected to a force applied by means of a circular steel pressure plate with a diameter of 50 mm. The control is placed on a flat horizontal steel support with the appropriate flexible cord fitted. After the test the control shall be evaluated as in Actuating member and actuating means Controls supplied with, or intended to be fitted with actuating members age 34 of 59

35 If a control is intended to have an actuating member but is submitted for approval without, or is intended to have an easily removable actuating member then a pull and push of 30 N are applied to the actuating means. During and after each of these tests the control shall show no damage, nor shall an actuating member have moved so as to impair compliance with this standard. ush-and-turn or pull-and-turn actuation (EN ) arts containing liquid metal (EN ) 19. THREADED ART AND CONNECTIONS 19.1 Threaded parts moved during mounting or servicing No such parts Threaded parts, electrical or otherwise which are likely to be operated while the control is being mounted or during servicing shall withstand the mechanical stresses occurring in normal use Such parts shall be easily replaceable if completely removed Such threaded parts shall have a metric ISO thread or a thread of equivalent effectiveness. If such a threaded part is a screw and if it generates a thread in another part, it shall not be of the thread cutting type. Such screws may be of the space threaded type, (sheet metal) if they are provided with a suitable means to prevent loosening. Such threaded parts shall not be of non-metallic material if their replacement by a dimensionally similar metal screw could impair compliance with clause 13 or Such threaded parts shall not be of metal which is soft or liable to creep such as zinc or aluminum. age 35 of 59

36 Such screws operating in a thread of non-metallic material shall be such that the correct introduction of the screw into its counterpart shall be ensured. Such threaded parts, when used for in-line cord controls, if they are transmitting contact pressure and if they have a nominal diameter less than 3 mm, shall screw into metal. Compliance with to inclusive is checked by inspection and by the test of to , inclusive Threaded parts are tightened and loosened: - 10 times if one of the threaded parts is of non-metallic material, or five times if both parts are of metallic material Screws in engagement with a thread of non-metallic material are completely removed and reinserted each time. The shape of the screwdriver should suit the head of the screw to be tested. The conductor is moved each time the threaded part is loosened. The test is made by means of a suitable test screwdriver, spanner or key, applying a torque, without jerks 19.2 Current-carrying connections Current-carrying connections which are not disturbed during mounting or servicing and the efficiency or security Such current-carrying connections which are also subject to torsion in normal use, shall be locked against any movement. Contact pressure is not transmitted through non-metallic material other than ceramic or other non-metallic material having characteristics no less suitable age 36 of 59

37 Such current-carrying connections shall not make use of space threaded screws. Space threaded screws may be used to provide earthing continuity if at least two such screws are used for each connection Such current-carrying connections may make use of thread cutting screws if these produce a full-form standard machine screw thread. Thread cutting screws may be used to provide earthing continuity if at least two such screws are used for each connection. Such current-carrying connections shall have resistance to corrosion over the area of contact not inferior to that of brass. Compliance with to inclusive is checked by inspection. CREEAGE DISTANCES, CLEARANCES AND DISTANCES THROUGH SOLID 20. INSULATION Clearances (L and N): > 3mm 20.1 Clearances Live part and enclosure: >6mm The clearances of basic insulation shall be sufficient to withstand the overvoltages hat can be expected in use, taking into account the rated impulse voltage For operational insulation, table 20.2, case A applies Compliance with 20.1 is checked by measurement using the methods of measurement For controls provided with an equipment inlet or socket-outlet, the measurements are made twice, once with an appropriate connector or plug inserted, For terminals intended for the connection of external conductors, the measurements of such terminals are made twice, once with conductors of the largest cross-sectional area age 37 of 59

38 For terminals intended for the connection of internal conductors, the measurements of such terminals are made twice, once with conductors of the minimum cross-sectional area Distances through slots or openings in surfaces of insulating material are measured to metal foil in contact with the surface. The standard test finger is applied to apertures as specified in 8.1, the distance through insulation between live parts and the metal foil shall then not be reduced below the values specified. A force is applied to any point on bare live parts which are accessible before the control is mounted, and to the outside of surfaces which are accessible after the control is mounted, The force is applied by means of the standard test finger and has a value 30N for accessible surface For basic and operational insulation, smaller distances may be permitted For micro-disconnection and interruption, there is no specified minimum distance for the clearance between the contacts For full disconnection, the values specified in table 20.2, Clearances of supplementary insulation shall be not less than those specified for basic insulation in table 20.2, case A Clearances of reinforced insulation shall be not less than those in table 20.2, case A but using the next higher step for rated impulse voltage as a reference Clearances (primary and secondary of transformer): > 6mm Clearances (C6, Cy4): > 6mm Clearances (U3): > 6mm age 38 of 59

39 For controls or portions of controls supplied from a transformer with double insulation, clearances of operational insulation and basic insulation on the secondary side are based on the secondary voltage of the transformer which is used as the nominal voltage For circuits having extra-low voltage which are derived from the supply by means of protective impedance, clearances of operational insulation are determined The impulse dielectric test, when required, is applied in accordance with of IEC If the secondary of a transformer is earthed, or if there is an earthed screen between the primary and secondary windings, the clearances of basic insulation on the secondary side shall not be less than those 20.2 Creepage distances Controls shall be constructed so that creepage distances for basic insulation are not less than those specified in table 20.3 for the rated voltage, taking into account the material group and the pollution degree. Controls shall be constructed so that creepage distances for operational insulation are not less than those specified in table 20.4 for working voltage, taking into account the material group and the pollution degree. Creepage distances of supplementary insulation shall be not less than those appropriate for basic insulation taking into account the material group and the pollution degree Creepage (L and N): > 3mm Live part and enclosure: >6mm Creepage (primary and secondary of transformer): > 6mm Creepage (C6, Cy4): > 6mm Creepage (U3): > 6mm age 39 of 59

40 Creepage distances of reinforced insulation shall be not less than double those appropriate for basic insulation, taking into account the material group and the pollution degree Solid insulation There is no dimensional requirement for the thickness of basic or operational insulation. The distance through insulation for supplementary and reinforced insulation between metal parts Enclosure: 2mm shall not be less than 0,7 mm The requirement of does not apply if the insulation is applied in thin sheet form The requirement of does not apply if the supplementary insulation or the reinforced insulation is inaccessible and meets one of the following criteria 21. RESISTANCE TO HEAT, FIRE AND TRACKING 21.1 General requirements All non-metallic parts may be resistant to heat, fire and tracking Integrated, incorporated and in-line cord controls For parts which are accessible when the control is mounted in its manner of intended use, and the deterioration becoming unsafe. For parts which retain in position current-carrying parts other than electrical connections For parts which maintain or retain in position electrical connections, the tests shall be as indicated for the declared category of the control For all other parts Enclosure Ball pressure test 1 Enclosure: 75 for 1h, 1.63mm age 40 of 59

41 bobbin of transformer: Ball pressure test 2 for 1h, 0.7mm AC IN terminal: 125 for 1h, 1.07mm Resistance to tracking 21.3 Independently mounted controls reconditioning Insulating parts retaining live parts comply with the requirements of Category B or D Category B Accessible non-metallic parts shall comply with the requirements of Enclosure and AC IN terminal Other non-metallic parts shall comply with the requirements of Independently mounted controls shall comply with the requirements of RESISTANCE TO CORROSION 22.1 Resistance to rusting Ferrous parts, including covers and enclosures, the corrosion shall be protected against corrosion. copper parts This requirement does not apply to temperature sensing elements Compliance is checked by the following test: The parts are subjected to a test of 14 days duration at 93 % to 97 % relative humidity at (40 ± 2) C. After the parts have been dried for 10 min in a heating cabinet at a temperature of (100 ± 5) C, their surfaces shall show no corrosion Traces of rust on sharp edges and a yellowish film removable by rubbing are ignored. 23. ELECTROMAGNETIC COMATIBILITY (EMC) REQUIREMENTS EMISSION Free standing and independently mounted 23.1 controls See EMC report age 41 of 59

42 Test conditions Test procedure Thermostats shall be so constructed that they do not generate radio interference for a time period exceeding 20 ms. (EN ) 24. COMONENTS Transformers intended to supply power to a safety extra-low voltage circuit (SELV) Controls that incorporate a safety isolating transformer as the source of supply to an external isolated limited secondary circuit are subjected to an output test with the primary energized at full rated voltage as indicated in , and Components other than those detailed in For components which have previously been found to comply with a relevant IEC safety standard, to reduce the testing necessary See also annex J NORMAL OERATION (See Annex H) 26. ELECTROMAGNETIC COMATIBILITY (EMC) REQUIREMENTS IMMUNITY See Annex H ABNORMAL OERATION 27.1 See annex H 27.2 Locked mechanism test No electro-magnets Controls incorporating electro-magnets shall withstand the effects of blocking of the control mechanism age 42 of 59

43 The control mechanism is blocked in the position assumed when the control is de-energized After this test the control shall be deemed to comply if: there has been no emission of flame or molten metal, and there is no evidence of damage to the control which would impair compliance with this standard; the requirements of 13.2 are still met Overvoltage and undervoltage test No electro-magnet 27.4 See annex H GUIDANCE ON THE USE OF ELECTRONIC DISCONNECTION See Annex H ANNEX H Requirements for electronic controls H.6 Classification H.6.4 According to features of automatic action H electronic disconnection on operation Type 2.N H.6.9 According to circuit disconnection or interruption H electronic disconnection H.6.18 According to software class H Software class A H Software class B H Software class C H.7 Information H.8 rotection against electric shock H.8.1 General requirements H Accessible parts shall not be considered as hazardous live parts if separated from the supply by protective impedance age 43 of 59

44 H When protective impedance is used, the current between the part or parts and either pole of the supply source shall not exceed 0,7 ma (peak value) a.c. or 2 ma d.c H.11 Constructional requirements H.11.2 rotection against electric shock H rotective impedance shall consist of two or more impedance components of equivalent resistance values in series, which are connected between live parts and accessible parts H.11.4 Actions H Type 1.Y or 2.Y action shall operate to provide electronic disconnection Type 2.N H The test is carried out with the control connected 1 to its declared maximum load, supplied with rated voltage, and at temperature Tmax H The current through the electronic disconnection 2 shall not exceed 5 ma or 10 % of the rated current, whichever is the lower H Controls using software H H Controls with functions classified as software class B or C shall use measures to void and control software-related faults/errors in safety-related data and safety-related segments of the software, as detailed in H to H inclusive. Controls with functions declared as software class C shall have one of the following tructures: single channel with periodic self-test and monitoring dual channel (homogenous) with comparison dual channel (diverse) with comparison Controls with functions declared as software class B shall have one of the following structures: - single channel with functional test age 44 of 59

45 - single channel with periodic self-test - dual channel without comparison H When redundant memory with comparison is provided on two areas of the same component, the data in one area shall be stored in a different format from that in the other area. H Controls with functions declared as software class C using dual channel structures with comparison shall have additional fault/error detection means for any fault/errors not detected by the comparison H For controls with functions other than software class A, means shall be provided for the recognition and control of errors in transmissions to external safety-related data paths. H For controls with functions declared as software class C, the manufacturer shall have used one of the combinations (a p) of analytical measures given in the columns of table H during hardware development H For control functions other than software class A, the manufacturer shall provide, within the control, measures to address the fault/errors in safety-related segments and data indicated in table H and identified in table 7.2, requirement 68 H Software fault/error detection shall occur not later than the time declared in requirement 71 of table 7.2. The acceptability of the declared time(s) is evaluated during the fault analysis of the control. H The loss of dual channel capability is deemed to be an error in a control using a dual channel structure with functions declared as software class C. age 45 of 59

46 H The software shall be referenced to relevant parts of the operating sequence and the associated hardware functions. H Where labels are used for memory locations, these labels shall be unique H The software shall be protected from user alteration of safety-related segments and data H The software and safety-related hardware under its control shall be initialized to, and terminate at, a declared state as indicated in table 7.2, requirement 66 H.13 Electric strength and insulation resistance H.13.2 Electric strength H.17 Endurance H H No endurance test is carried out on electronic controls with type 1 action unless this is necessary for the testing of associated components such as those with manual actions relays, etc. Electronic controls with type 2 action are not subjected to an endurance test but to a thermal cycling test under the conditions described in H H Thermal cycling test H Evaluation of compliance H.18 Mechanical strength H.18.1 General requirements H For controls providing electronic disconnection (Type 1.Y or 2.Y), the requirements of H shall be met. H.20 Creepage distances, clearances and distances through insulation H Electronic controls age 46 of 59

47 H H H H Creepage distances, clearances and distances through insulation between live parts connected electrically to the mains supply and accessible surfaces or parts shall comply with the requirements of clause 20 Creepage distances, clearances and distances through insulation between live parts and parts operating at safety extra-low voltage (SELV) shall comply with the requirements of clause 20 for double or reinforced insulation unless the path is via earthed metal Creepage distances, clearances and distances through insulation shall comply across protective impedance with the requirements of clause 20 for double or reinforced insulation; across each separate component of protective impedance with the requirements of clause 20 for supplementary insulation Creepage distances and clearances providing operational insulation shall comply with the requirements of clause 20 H.21 Resistance to heat, fire and tracking H Ball pressure test 2 H.23 Electromagnetic compatibility (EMC) requirements emission H.23.1 Electronic controls shall be so constructed that they do not emit excessive electric or electromagnetic disturbances in their environment. H Low frequency emission, disturbances in supply systems See emc report H Radio frequency emission H.25 Normal operation H.25.1 The output waveform of electronic controls shall be as declared age 47 of 59

48 H.26 Electromagnetic compatibility (EMC) requirements Immunity H.26.1 Electronic controls shall be so constructed as to withstand the effects of mains-borne perturbations and electromagnetic phenomena which may occur in normal use. H.26.2 For protective and operating controls with either type 1 or 2 action, and either integrated, incorporated, independently mounted, or free-standing, compliance is checked at test levels as indicated by the following Table H The controls shall comply with H H For integrated and incorporated controls with Type 1 action, compliance is checked by the tests of H.26.8 and H.26.9 if declared in table 7.2, requirement 58a H For integrated and incorporated controls with Type 2 action, compliance is checked by H.26.5 and any other tests of clause H.26 which are declared in table 7.2, requirement 58a H The control shall remain in its current condition and thereafter shall continue to operate as declared within the limits verified in clause 15 (EN ) H The control shall assume the condition declared in table 7.2, requirement 109 and thereafter shall operate as in H (EN ) H The control shall assume the condition declared in table 7.2, requirement 109 such that it cannot be reset automatically or manually (EN ) H The control shall remain in the condition declared in table 7.2, requirement 109. A non-self-resetting control shall be such that it can only reset manually (EN ) H The control may return to its initial state and thereafter shall operate as in H (EN ) See emc report age 48 of 59

49 H The output and functions shall be as declared in table 7.2, requirement 58a or 58b and the control shall comply with the requirement of 17.5 (EN ) H.26.3 A separate sample, as submitted, may be used for each test. At the option of the control Not applicable for EN manufacturer, multiple tests may be performed on a single sample H.26.4 Test of the influence of signal voltages in the power supply networks Under consideration H.26.5 Test of the influence of signal voltages in the power supply networks see EMC report H urpose of the test H Test values H Test procedure H Voltage variation test H For controls declared under requirement 109 of 01 table 7.2, each test is performed three times when the control is in the declared condition and three times when it is not (EN ) H.26.6 Test of influence of voltage unbalance H urpose of the test Range of application H Test voltage characteristics H Test equipment/test generator H Severity level H.26.7 Test of the influence of d.c. in a.c. networks H ,2/50 s 8/20 s voltage-current surge test (EN ) H urpose of the test H Test values H Test procedure age 49 of 59

50 H For controls declared under requirement 109 of 01 table 7.2, three of the tests are performed when the control is in the declared condition and two are performed when it is not. (EN ) H.26.9 Electrical fast transient/burst test H urpose of the test H Test levels H Test procedure H Test procedure (EN ) The control is subjected to five tests. For controls declared under requirement 109 of table 7.2, three tests are performed when the control is in the declared condition and two are performed when it is not. (EN ) H Ring wave test H urpose of the test Range of application H Test wave characteristics H Test equipment/test generator H Severity levels H Test procedure H For controls declared under requirement 109 of table 7.2, three of the tests are performed when the control is in the declared condition and two are performed when it is not (EN ) H Electrostatic discharge test H Radio-frequency electromagnetic field immunity H urpose of the test H Immunity to conducted disturbances H H Test levels for conducted disturbances Test procedure age 50 of 59

51 H Radiated electromagnetic fields immunity evaluation H Test level for radiated electromagnetic fields 1 H Test procedure 2 H For controls declared under requirement 109 of 101 table 7.2, sweeping is performed when the control is in the declared condition and when it is not (EN ) H Test of influence of supply frequency variations H urpose of the test H Test levels H Test procedure H ower frequency magnetic field immunity test H urpose of the test H Test levels H Test procedure H Evaluation of compliance H After the tests of H26.2 through H.26.12, the sample(s) shall meet the requirements of Clause 6, Subclause 17.5 and Clause 20 H In addition, the control shall meet the following: the requirements of H or the output(s) and functions shall be as declared in Table 7.2, requirements 58a and 58b. H Different outputs and functions may be declared by the manufacturer after testing at level 2, or level 3, if relevant. art 2 may specify particular criteria after each of these tests. H The compliance criteria shall be given in part 2 and shall be based on the operating output conditions and the functional specifications of the control under test: age 51 of 59

52 a) normal performance with no loss of protective functions and control is within specification or declared limits; b) loss of protective function within declared limits c) loss of protective function with safety shut down d) loss of protective function with unsafe operation H.27 Abnormal operation H.27.1 H H Electronic controls are assessed for the effects of failure or malfunction of circuit components. Fault conditions specified in H are not applied to circuits or parts of circuits where all of the following conditions are met: the electronic circuit is a low-power circuit as described below the protection against electric shock, fire hazard, mechanical hazard or dangerous malfunction in other parts of the control does not rely on the correct functioning of the electronic circuit The control shall be operated under the following conditions: a) At the most unfavourable voltage in the range 0,9 to 1,1 times the rated supply voltage. b) Loaded with the type of load, within the declared or measured parameters, producing the most onerous effect c) In an ambient temperature of (20 ± 5) C, unless there are significant reasons of H ) for conducting the test at another temperature within the manufacturer s declared range d) Connected to an electrical supply having a fuse rating such that the result of the test is not influenced by the operation of the fuse e) With any actuating member set to the most unfavourable position. age 52 of 59

53 H With each fault described in Table H.27.1, simulated or applied to one circuit component at a time, the control shall comply with correlative requirement. H Electronic circuit fault conditions H H.27.4 H H For the load includes a motor load, and the failure or malfunction of an electronic circuit component Controls providing electronic disconnection (Type 1.Y or 2.Y) shall withstand the abnormal overvoltage conditions which may occur The control is loaded as indicated in 17.2 and subjected to 1,15 V R for 5 s, when the control is providing electronic disconnection During and after the test, the control shall continue to provide electronic disconnection as determined by the test of H H.28 Guidance on the use of electronic disconnection H.28.1 Main features of solid-state switching devices H.28.2 Application of solid-state switching devices 13.1 TABLE: insulation resistance measurements Insulation resistance R between: R (MΩ) Required R (MΩ) L & N >100 >2 L/N & enclosure >100 >7 L/N & sensing component >100 > TABLE: electric strength measurements Test voltage applied between: Test voltage (V) Breakdown L & N AC 1450 No breakdown L/N & enclosure AC 2900 No breakdown L/N & sensing component AC 2900 No breakdown TABLE: Maximum leakage current measurements Insulation resistance R between: I (MA) Required I (MA) L/N & Enclosure <0.75 age 53 of 59

54 14.1 TABLE: Heating Monitored point: T ( ) 99V/60Hz T ( ) 264V/50Hz ermitted Tmax ( ) in of plug Terminal for external conductors AC-IN Connector Set button ower cord set ower cable LCD anel CB near D T1 winding T1 bobbin L C Battery Y1 cap Opto-coupler (C817) Enclosure Ambient( ) TABLE: Ball pressure art Test temperature ( ) Impression diameter (mm) Allowed impression diameter (mm) Enclosure AC IN Terminal Bobbin of transformer TABLE: Glow wire art Test temperature ( ) Result Enclosure 550 No ignition AC IN Terminal 850 No ignition H.27 TABLE: abnormal operation Rated voltage (V)...: Room temperature ( ) : age 54 of 59

55 No. Component No. Fault Test time Resule 1 D9 S-C 10min Unit power down to 0.6W, recoverable, No hazards 2 R10 S-C 10min Normal operation, No hazards 3 C16 S-C 10min Unit power down to 0.3W, U2 damaged, No hazards 4 C7 S-C 10min Unit power down to 0.7W, recoverable, No hazards 5 in 1 and 2 of U3 S-C 10min Unit power down to 1.09W, recoverable, No hazards 6 in 3 and 4 of U3 S-C 10min Unit power down to 0.11W, recoverable, No hazards 7 C6 O-C 10min Normal operation, No hazards 8 D4 S-C 10min 9 D1 S-C 10min 10 C1 S-C 10min Remark: S-C means short circuit. O-C means open circuit. Unit shutdown immediately, fuse opened, no hazard Unit shutdown immediately, fuse opened, no hazard Unit shutdown immediately, fuse opened, no hazard COMONENT MANUFACTURER MODEL RATINGS INDEX Approved No. (UL or TUV or VDE) MICROCHI IC18F67J to 6V -40 to 100 2:U6 UL OWER TNY to 700V -40 to 150 1:U2 UL DALLAS DS1302S -0.5 to 7V 0 to 70 2:U8 UL SHAR C817 Viso:5000Vrms -30 to 100 1:U3 UL:E Electrical chip MAXIM MAXIM MAX232 MAX to 6V 0 to 70 12V 0 to 70 2:U10 2:U7 UL UL FAIRCHILD LM78M05 35V 0 to 150 1:U7 UL STMICROELECT RONICS LM78L05 30V 0 to 125 1:U5 UL STMICROELECT RONICS LM78L09 30V 0 to 125 1:U4 UL TI LM324 32V 0 to 70 2:U11,U12 UL age 55 of 59

56 COMONENT MANUFACTURER MODEL RATINGS INDEX Approved No. (UL or TUV or VDE) Electrical 1 chip LCD 2 screen 3 Fuse 4 Capacitor 5 Relay Color cycle 6 inductor High 7 frequency transformer Common 8 mode inductor Button cell 9 battery NSC TI NX MOTOROLA TOWAY Shenzhen lanson electronics co.,ltd. Nanjing Junhan S & T Co., Ltd. Nanjing Junhan S & T Co., Ltd. Shenzhen soyn electronics co.,ltd. Shenzhen soyn electronics co.,ltd. Shenzhen soyn electronics co.,ltd. Nanjing Junhan S & T Co., Ltd. Nanjing Junhan S & T Co., Ltd. Nanjing Infinity Technology Co.,Ltd Nanjing Infinity Technology Co.,Ltd Nanjing Junhan S & T Co., Ltd. LM TL431 BT137S MOC3061 LM6030AC W FUSE ResettableF use ResettableF use safety capacitor safety capacitor safety capacitor JZC-32F-012 -HS3 20V V 70 8A/600V 0 to 0 to 0 to 125 Viso:7500Vac -40 to 100 3V -20 to V 8A -40 to V 0.09A -40 to 85 50V 0.01A -40 to pF/250V 2.2nF/250V AC 0.22UF/275V AC 12VDC/5A -40 to 70 2:U4 1:U6,U8 1:Q2 1:U1 UL UL UL UL 2:J14-1:F1 1:FR1 2:FR1 1:C6 1:CY1~CY4 1:C1,C2 1:K1~K3 inductor 3.3UH 1:LD1 INF-EE *20mm 1:T1 INF-UU9.8 10*10mm 1:L1 CR2032 3V 2:BT1 VDE VDE VDE UL: E VDE: UL: E VDE: UL: E VDE: UL: E VDE: Tes in appliance Tes in appliance Tes in appliance Tes in appliance age 56 of 59

57 COMONENT MANUFACTURER MODEL RATINGS INDEX Approved No. (UL or TUV or VDE) 10 Light touch switch Nanjing Junhan S & T Co., Ltd. KFC-A06-ES MT 6*6mm 0.5A/12V -20 to 70 2:SW1~SW 3 - Nanjing Junhan S & T Co., Ltd. FC Connector 20*0.5mm 0.5A/50V -25 to 85 2:J4 Nanjing Junhan S & T Co., Ltd. CXRJ-RJ A/300V 2:J7~J11 Nanjing Junhan S & T Co., Ltd. CXRJ-RJ A/300V 1J1~J6: 11 Connector assembly Nanjing Junhan S & T Co., Ltd. Wire To Board Connectors 2.5mm*2 1A/125V -25 to 85 2:J15,J16 Nanjing Junhan S & T Co., Ltd. Wire To Board Connectors 2.5mm*3 1A/125V -25 to 85 2:J13 Nanjing Junhan S & T Co., Ltd. Wire To Board Connectors 2.0mm*4 1A/125V -25 to 85 2:J12 Nanjing Junhan S & T Co., Ltd. RJ45 1A/125V -40 to 70 2:J5 Test procedure Test equipment Modle Marking test Normal Operation Temperature rise measurements Hygroscopic materials Dielectric Strength Test for insulation material etroleum spirit, Water, iece of cloth Calibration date MT-E055 Stop Watch C MT-E001 Digital ower Meter; 2102C MT-E073 Frequency conversion WEW-1010 ower Supply; MT-E001 Digital ower Meter; 2102C MT-E004 Hybrid DR130 Recorder(20CH); MT-E073 Frequency conversion WEW-1010 ower Supply; MT-E080 rogrammable temp GDS-408 /Humi. Chamber; MT-E006 Withstanding Voltage CS2672C tester MT-E076 Digital Caliper; G External forces, MT-E089 ush-ull Scale; SKN age 57 of 59

58 Test procedure Test equipment Modle Calibration date windows etc. MT-E055 Stop Watch C External forces, MT-E089 ush-ull Scale; SKN covers MT-E055 Stop Watch C Internal forced MT-E089 ush-ull Scale; SKN MT-E055 Stop Watch C MT-E012 Oven Chamber CS101-2A Endurance test for wound components Shock Hazard Under Normal Operating Conditions MT-E080 rogrammable temp GDS-408 /Humi. Chamber; MT-E067 Vibration generator; LD-F MT-E073 Frequency conversion ower Supply; MT-E066 touch current tester WEW B MT-E026 Test Finger; Accessibility MT-E094 UL test finger; ULZ MT-E083 Child test finger; WZ MT-E084 Child test finger; WZ Openings in the MT-E050 Test robe robe 3-1 enclosure Terminals MT-E049 Test robe robe re-set controls MT-E048 Test robe robe External Force Test MT-E025 Test Finger; to Enclosure MT-E086 Test hook; SG Surge Test MT-E054 Surge Tester 1065A Humidity Test MT-E080 rogrammable temp GDS-408 /Humi. Chamber; MT-E011 Insulation Resistance Insulation YD2681A meter; Resistance and MT-E006 Withstanding Voltage Dielectric Strength CS2672C tester MT-E001 Digital ower Meter; 2102C Heating Under Fault Conditions MT-E073 Frequency conversion WEW ower Supply; Vibration Test MT-E067 Vibration generator LD-F MT-E019 Impact hammer; CJ Impact Test MT-E021 Steel ball; MT-E032 Measure tape J Drop Test Hard wood 13mm on 19mm to 20mm plywood, two layers MT-E032 Measure tape J Stress relief test MT-E012 Oven Chamber CS101-2A Fixing of Actuating MT-E033 Torque Driver; RTD120CN Elements MT-E089 ush-ull Scale; SKN Clearances and Creepage distances MT-E076 Digital Caliper; G Operating voltage MT-E131 Digital Oscilloscope; TDS1012B measurement MT-E144 Oscilloscope robes H Jointed Insulation MT-E012 Oven Chamber; CS101-2A age 58 of 59

59 Test procedure Test equipment Modle rotective devices Grounding ath Test Tests for Devices Forming a art of Mains lug Flexible Cord Strain Test Screw Securement Test Tip Stability Test with Horizontal Force MT-E080 rogrammable temp. /Humi. Chamber; Calibration date GDS MT-E012 Oven Chamber; CS101-2A MT-E011 Insulation Resistance meter; YD2681A MT-E006 Withstanding Voltage tester CS2672C MT-E010 Ground Continuity Tester 9611C MT-E097 ower supply plug set test platform; 940A MT-E033 Torque Driver; RTD120CN MT-E089 ush-ull Scale; SKN MT-E089 ush-ull Scale; A MT-E033 Torque Driver; RTD120CN MT-E035 Inclined plane re-conditioning of MT-E012 Oven Chamber; CS101-2A printed circuit boards MT-E125 Needle Flame Test Set ZY age 59 of 59

60 Appendix 1 The front and back views of Multi-function differential controller Model: MFC-1

61 Appendix 2 Inner views of Multi-function differential controller Model: MFC-1

62 Appendix 3 CB views of Multi-function differential controller Model: MFC-1

63 Appendix 4 CB views of Multi-function differential controller Model: MFC-1 END OF THIS REORT