TECHNICAL REPORT NERA SATCOM AS ELECTRICAL SAFETY TESTING OF DC/DC REPORT NO REVISION NO. 02 DET NORSKE VERITAS

Transcription

1 TECHNICAL REORT NERA SATCOM AS ELECTRICAL SAFETY TESTING OF DC/DC CONVERTER FOR THE NERA F77 SYSTEM REORT NO REVISION NO. 02 DET NORSKE VERITAS

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3 TECHNICAL REORT Table of Content age 1 SCOE OF WORK TEST LABORATORY TEST ERIOD EQUIMENT UNDER TEST Equipment submitted for tests Test configuration 2 5 TESTS SUMMARY OF TEST RESULTS TEST FACILITIES AND INSTRUMENTS HOTOS AENDIX TESTING ACCORDING TO EN age i

4 TECHNICAL REORT 1 SCOE OF WORK A DC/DC converter manufactured by Nera SatCom AS, has been electrical safety tested according to the requirements of: EN (2001) The DC/DC converter will be installed in the Satellite Communication system NERA F77 also manufactured by Nera SatCom AS.. The purpose of the testing was to qualify the DC/DC converter for CE marking. Only one specimen of the converter has been tested. The test results thus apply solely for this specimen. It is the responsibility of the manufacturer to ensure that the production versions are made to the same specifications as the tested specimen. 2 TEST LABORATORY The tests were carried out in the Environmental Test Laboratory of Det Norske Veritas, Høvik, Norway. Laboratory accreditation: NORSK AKKREDITERING, No. TEST Electromagnetic Compatibility 17 Environmental Testing 20 Safety Testing According to NS-EN ISO/IEC Valid through Ambient conditions in the laboratory: arameter Required (IEC ) Actual Temperature [ C] Humidity [% RH] Barometric pressure [mbar] For details about the test facilities and instruments used, see Chapter 7. age 1

5 TECHNICAL REORT 3 TEST ERIOD The tests were carried out from to EQUIMENT UNDER TEST 4.1 Equipment submitted for tests Description Make Model S/N DC/DC converter Nera SatCom AS N The above will be referred from now as EUT (Equipment Under Test). 4.2 Test configuration The EUT was tested: Installed in NERA F77 as a system, As a stand-alone unit Refer to each chapter for testing details. Auxiliary equipment (AE) used in order to operate the EUT: Description Make Model S/N AE1 AC/DC power supply Delta SM7020-D AE2 Lap top Toshiba Satellite ro ECN0049 AE1 was used to power the system, AE2 was running a test program age 2

6 TECHNICAL REORT Test set-up: Outdoors unit 230 VAC AC/DC ower Supply Dummy load EUT Indoors unit N ortable C EUT installed in NERA F77 as a system 230 VAC AC/DC power supply EUT Variable resistance EUT tested as stand alone unit age 3

7 TECHNICAL REORT 5 TESTS See Chapter 9 - Appendix. 6 SUMMARY OF TEST RESULTS The EUT passed all the tests. 7 TEST FACILITIES AND INSTRUMENTS Instrument Description Make Model Serial number ower supply Delta Elektronika SM7020-D Digital multimeter Fluke Digital multimeter Fluke AC/DC clamp meter rova CM Data logger Agilent 34970A US Multiplexer H 34901A US SW program Agilent Bench Link version 1.4 Calliper Sylvac Variable resistor Claude Lyons 504x60/DO Digital oscilloscope Tektronix TDS3032 B Differential probe Tektronix 2510 B Test pin Ljungmann 1 Test finger Ljungmann 2 Jointed test finger Ljungmann Test pin Ljungmann 3x15 mm age 4

8 TECHNICAL REORT 8 HOTOS NERA F77 system Indoors unit DC/DC converter Front side age 5

9 TECHNICAL REORT Rear side Bottom age 6

10 TECHNICAL REORT 9 AENDIX TESTING ACCORDING TO EN Name and address of the applicant Name and address of the manufacturer Name and address of the factory (production sites) roduct Trademark Model/type reference Rating and principal characteristics Nera Satcom AS Bergerveien Billingstad Norway Nera Satcom AS Bergerveien Billingstad Norway Nera Satcom AS Bergerveien Billingstad Norway Build-in DC/DC converter Nera DC/DC converter 20-32V DC Cl. III build-in equipment Serial no 001 Test case verdicts: = pass, F = fail, = not applicable, placed in the column marked Verdict. 1 General 1.1 Scope Equipment covered by this standard The equipment is within the scope of EN Additional requirements: EMC and environment tests shall be performed and described in separate reports. Exposure for operation in special environments: extreme temperatures; excessive dust; moisture or vibration; flammable gases; and corrosive or explosive atmospheres; Electro-medical application with physical connection to the patient; age 7

11 TECHNICAL REORT Equipment used in vehicles, ships or aircrafts, in tropical countries or at elevations > 2000m; Equipment intended for use where ingress of water is possible I-classification (EN 60529) I Equipment electrical ratings Rated voltage / voltage range as declared by the manufacturer 20-32V DC Rated current as declared Rated frequency / frequency range Operating conditions Normal load as described in Annex L or as close as possible to the most severe conditions of normal use Rated operating time as assigned by the manufacturer Continuous operation / Short-time / Intermittent operation Equipment mobility Mass of the appliance Movable equipment / handheld equipment / stationary equipment Fixed equipment / equipment for building-in / direct plug-in equipment Class of equipment rotection against electric shock The system was keyed for continuous sending and receiving mode. Build-in equipment Class I, II or III equipment Class III equipment Connection to the supply Type of connection to the supply Circuits and circuit characteristics age 8

12 TECHNICAL REORT 1.3 General requirements Application of requirements Investigation of the equipment circuits and construction Equipment design and construction Adequate design and construction of the equipment Supply voltage Equipment shall be designed to be safe at any supply voltage to which it is intended to be connected V DC Constructions not specially covered Technologies and materials or methods of construction not specially covered in this standard Orientation during transport and use Orientation of use permitted in the installation or user instructions shall be taken into account Conductive liquids 1.5 Components General Conductive liquids shall be treated as conductive parts. Comply with EN or the relevant component standard Evaluation and testing of components Evaluation and testing of components Thermal controls Transformers Thermal controls shall be tested in accordance with Annex K. Transformers No conductive liquids. age 9

13 TECHNICAL REORT Interconnecting cables Interconnecting cables shall comply with relevant requirements of the standard and shall not cause hazards whether detachable or non-detachable Capacitors in primary circuits No connection to mains. Capacitors connected between line conductors of the primary, or between line conductor and neutral conductor: Capacitor connected between primary circuit and protective earth: Double or reinforced insulation bridged by components Bridging capacitors Double or reinforced insulation bridged by capacitors: Bridging resistors Double or reinforced insulation bridged by resistors: Bridging resistors Double or reinforced insulation bridged by resistors Accessible parts Accessible conductive parts or circuits separated from other parts by double or reinforced insulation: Components in equipment for IT power distribution systems Components in equipment intended to be connected to IT power systems: age 10

14 TECHNICAL REORT List of critical components art Component Manufacturer Model Ratings Marks of conformity 2, 3 Input connectors (2) Various Various Tested with the unit F1, F2 Fuse holders Schurter Tested with the unit Fuses Littelfuse A 250V 6.3x32 mm Tested with the unit L5, L6, L7, L8 Input coils ulse 0502 Tested with the unit S2 On/Off switch C&K UL CSA T1, T4 Transformers Nera SatCom TTR0002A2 Separately tested U4, U6, U10, U21 Opto couplers Infineon Technologies SFH FI WB Various Various 94V-0 UL Enclosure Nera Metal, 2.10mm thick Tested with the unit 1.6 ower interface Class III equipment AC power distribution systems Tested for power system type Input current Normal load according to Test voltage (at each rated voltage or at each end of a rated voltage range) Rated current Multiple rated currents Measured current Deviation. 19 VDC / 20 VDC / 32 VDC / 38 VDC age 11

15 TECHNICAL REORT Voltage limit of hand-held equipment Rated voltage of hand-held equipment Neutral conductor Neutral conductor insulated from earth 1.7 Markings and instructions ower rating Location of marking Rated voltage / voltage range / multiple rated voltages For d.c. operated equipment; symbol for nature of supply Rated frequency / frequency range Rated current / multiple current ratings Manufacturers name, trade mark or identification mark Type / model NERA Symbol of class II Class III equipment. Additional markings do not give rise to misunderstanding Safety instructions Safety instructions Operating instructions Short duty cycles Marking of equipment intended for short-time or for intermittent operation Supply voltage adjustment Mains voltage adjustment (voltage / frequency setting) ower outlets on the equipment Marking at power outlets No voltage selector. age 12

16 TECHNICAL REORT Fuse identification Marking at fuse holders Wiring terminals rotective earthing and bonding terminals Terminal indications Terminals for a.c. mains supply conductors ermanently connected equipment and equipment with ordinary nondetachable power supply cord: Controls and indicators Identification, location and marking Clear indication of indicators, switches and other controls Colours Colours of controls and indicators where safety is involved Symbols Symbols used are according to IEC Marking using figures Figures used for indicating positions of controls Isolation of multiple power sources Marking when more than one power supply IT power systems Instructions for installation to IT power system Thermostats and other regulating devices Marking at thermostats and similar No connection of hazardous voltages or hazardous energy levels to the equipment. age 13

17 TECHNICAL REORT Language Durability Language of safety markings / instruction English. Durability and legibility The marking withstood the required tests Removable parts Markings on removable parts Replaceable batteries Warning text for replaceable lithium batteries Operator access with a tool Operator access with a tool Equipment for restricted access locations Installation instructions 2 rotection from hazards 2.1 rotection from electric shock and energy hazards rotection in operator access area Access to energized parts rotection against electric shock Battery compartments Access to TNV bare conductive parts within the equipment s battery compartment Access to ELV wiring Access to internal wiring: ELV circuit Access to hazardous voltage circuit wiring Access to internal wiring: hazardous voltage circuits No lithium battery. There was adequate protection against operator contact with bare parts at hazardous voltage. Checked by test finger and test pin. No internal wiring at hazardous voltages. age 14

18 TECHNICAL REORT Energy hazards Energy hazard No energy hazards Manual controls Insulation of conductive handles, knobs etc Discharge of capacitors in the primary circuit Risk of electric shock from the pins of a plug Time-constant rotection in service access areas Service access area rotection in restricted access locations Equipment provided with parts accessible to the operator. 2.2 SELV circuits General requirements Construction of SELV circuits Voltages under normal conditions Voltage between accessible parts / accessible part and protective earthing terminal Voltages under fault conditions Voltage in accessible parts of SELV in the event of a single fault condition No shafts of knobs etc. at hazardous voltage. No connection to mains. Checked by inspection, unintentional contact was unlikely during service operations. SELV circuit was adequately constructed in order to prevent reduction of distances, terminals, accidental shorting to hazardous voltages and the use of connectors. Only SELV voltages were generated both under normal operating conditions and after a single fault. No accessible voltage exceeded the SELV limit even after a single fault. age 15

19 TECHNICAL REORT Separation by double or reinforced insulation (Method 1) SELV circuits are insulated from other circuits by double or reinforced insulation Separation by earthed screen (Method 2) SELV circuits are insulated from other circuits by earthed screen rotection by earthing of the SELV circuit (Method 3) SELV circuits protected by earthing connected to a protective earthing terminal Connection of SELV circuits to other circuits SELV circuits connected to other circuits 2.3 TNV circuits No TNV circuits Limits a) TNV-1 circuits b) TNV-2 and TNV-3 circuits: - Telephone ringing signals - Voltages other than telephone ringing signals Separation from other circuits and from accessible parts - Separation between TNV circuits and unearthed operator-accessible conductive parts - Separation between TNV circuits and unearthed SELV circuits Voltages on accessible parts in the event of a single insulation fault or component failure age 16

20 TECHNICAL REORT Separation from hazardous voltages TNV circuit separated from circuits at hazardous voltages Connection of TNV circuits to other circuits Connection of TNV circuits to other circuits Test for operating voltages generated externally The test is carried out if specified in Limited current circuits No limited current circuits General requirements Test voltage (V) Limit values Circuits tested: Measured working voltage Measured frequency Limit used max Measured current through 2kΩ Measured capacitance Measured charge Measured energy Connection of limited current circuits to other circuits Supplied from or connected to other circuits 2.5 Limited power source No limited power source. Use of limited power source age 17

21 TECHNICAL REORT 2.6 rovisions for earthing and bonding No connections to mains rotective earthing Reliable connection Earthing of conductive parts in service access area or suitable marking Functional earthing Equipment provided with functional earthing Marking of the functional earthing terminal Colour of the internal functional earthing conductors rotective earthing and protective bonding conductors Size of protective earthing conductors Measurements Size of protective bonding conductors Equipment provided with protective bonding conductors Resistance of earthing conductors and their terminations rotective earth connector resistance 0,1 Ω Test current (A) Colour of insulation Green/yellow or transparent insulation age 18

22 TECHNICAL REORT Terminals rotective earthing and bonding terminals rotective earthing terminals Construction of the terminal rotective earthing terminal for permanently connected equipment Separation of the protective earthing from protective bonding conductors Separation of terminals Integrity of protective earthing Interconnection of equipment Assured protective earth connection in systems Components in protective earthing and protective bonding conductors Switches or overcurrent protective devices in protective earthing / bonding conductors Disconnection of protective earth Continuity of protective earth connections arts that can be removed by an operator Operator-removable parts with protective earthing connections: - operator removable part - plug on a power supply cord - appliance coupler arts removed during servicing Disconnection for servicing Corrosion resistance Risk of corrosion age 19

23 TECHNICAL REORT Screws for protective bonding Construction of the protective bonding Reliance on telecommunication network or cable distribution system Use of protective earthing 2.7 Overcurrent and earth fault protection in primary circuits No primary circuits. The power supply was provided with fuses Basic requirements Type of protective device Fuses. For pluggable equipment type B / permanently connected equipment Fault not covered in 5.3 rotection against faults not covered in Clause Short-circuit backup protection Considered. Adequate breaking capacity Fuses. For permanently connected equipment / pluggable equipment type B Number and location of protective devices Number and location of protective devices rotection by several devices rotection by several devices Warning to service personnel Warning to service personnel Fuses in input circuits. 2.8 Safety interlocks Not provided with safety interlocks rotection requirements Design Inadvertent reactivation rotection against inadvertent reactivation age 20

24 TECHNICAL REORT Fail-safe operation Reliability Moving parts Adequate construction of the mechanical part of the interlock system Overriding Override system Switches and relays For interlock system provided with switch / relay Contact gaps Contact gap Overload test Switch performing 50 cycles Endurance and electric strength test Endurance and electric strength test: test voltage (V) Mechanical actuators rotection against over-stress 2.9 Electrical insulation No connection to mains roperties of insulating materials Use of insulating materials Adequate use of insulating materials. Use of natural rubber, hygroscopic materials and materials containing asbestos. Driving belts and couplings Humidity conditioning Humidity treatment Requirements for insulation Adequate construction No use of such materials. age 21

25 TECHNICAL REORT 2.10 Clearances, creepage distances and distances through insulation Test voltage / ollution degree / CTI rating 32V DC / 2 / IIIa or IIIb 2.10 Clearances, creepage distances and distances through insulation (continued) Type of Insulation osition/ Location osition/ Location Working voltage Clearance (mm) Creepage distance (mm) 1 2 Up Urms Required Measured Required Measured Comm. Reinforc. Input circuits SELV Basic Input circuits Metal parts U p and U rms were measured between input and output of T Clearances in primary circuits No connection to mains. Clearances in primary circuits Clearances in secondary circuits Clearances in secondary circuits Measurement of transient voltage levels Transient levels: Creepage distances Creepage distances Solid insulation Urms Test voltage Distance through insulation required measured Minimun distance through insulation Distances through insulation 0.4mm insulation between WB and heat sink Thin sheet material Thin sheet material age 22

26 TECHNICAL REORT rinted boards rinted boards 0.4mm through WB Wound components Wound components Coated printed boards Distances on coated printed boards No special coating in order to reduce distances Thermal cycling Temperature cycles: Thermal ageing Duration and temperature in oven: Electric strength test Humidity conditioning and electric strength test: Abrasion resistance test Test: Enclosed and sealed parts Internal distances in enclosed and sealed parts Spacings filled by insulating compound Internal distances in encapsulated parts hoto-couplers Component external terminations Distances between external terminations of components Insulation with varying dimensions Construction of transformer with different working voltages. age 23

27 TECHNICAL REORT Clearances, creepage distances and distances through insulation (continued) lot of working voltage measurements age 24

28 TECHNICAL REORT Wiring, connections and supply No connection to mains General Current rating and over-current protection Cross-sectional area and protection rotection against mechanical damage Wireways Securing of internal wiring Fixing of internal wiring Insulation of conductors Insulation of individual conductors Beads and ceramic insulators Insulation on internal conductors was considered to be of adequate quality and suitable for the application. Beads and similar ceramic insulators No beads or similar insulators Screws for electrical contact pressure Required electrical contact pressure Insulating materials in electrical connections Design of electrical connections No contact pressure through insulating material Self-tapping and spaced thread screws Spaced thread and thread-cutting screws Termination of conductors Conductors and terminators shall be provided with means preventing reduction of clearances and creepage distances in normal use. Fixing of conductors End of stranded conductor Thread-cutting or space thread screws are not used for electrical connections. age 25

29 TECHNICAL REORT Test with 10N on the conductor termination Sleeving on wiring Retaining of sleeves 3.2 Connection to a.c. mains supplies No connection to mains Means of connection Type of connection Connection to an a.c. mains supply rovided with: Connection to a d.c. mains supply rovided with: Connector. ass Multiple supply connections Equipment provided with more than one supply connection ermanently connected equipment rovision for permanent connection Appliance inlets Appliance inlet ower supply cords Type and cross-sectional area of power supply cord AC power supply cords Cords: DC power supply cords Cords: Connection for back up provided. The construction was checked and found adequate, no hazards when miss-connection, no parts at hazardous voltages were accessible. age 26

30 TECHNICAL REORT Cord anchorage and strain relief Cord anchorage Test at 25 x Longitudinal displacement 2 mm Reduction of clearances and creepage distances rotection against mechanical damage rotection of power supply cord Cord guards Cord guard D = (mm) Test with mass of (g) r of curvature of the cord 1,5 D Supply wiring space Supply wiring space 3.3 Wiring terminals for connection of external conductors Wiring terminals Terminals Connection of non-detachable power supply cords Special non-detachable cord Screw terminals Screws and nuts Conductor sizes to be connected Connection of conductors Wiring terminal sizes Size of terminals Nominal thread diameter (mm) age 27

31 TECHNICAL REORT Wiring terminal design rotection against damage of conductors Grouping of wiring terminals Location of terminals Stranded wire Test with 8 mm stranded wire 3.4 Disconnection from the mains supply No connection to mains General requirement Disconnect device or devices Disconnect devices Type of disconnect device Contact separation ermanently connected equipment Disconnect device in permanently connected equipment arts which remain energized rotection against parts on supply side Switches in flexible cords lacing of isolating switch Single-phase and d.c. equipment Disconnection of both poles simultaneously Three-phase equipment Disconnection of all phases Switches as disconnect devices Marking at switch age 28

32 TECHNICAL REORT lugs as disconnect devices Installation instructions if plug on power cord is disconnect device Language Interconnected equipment Disconnection of group of units Multiple power sources Marking at each disconnect device 3.5 Interconnection of equipment General requirements Connection of SELV and TNV circuits Types of interconnection circuits Type of interconnection circuits ELV circuits as interconnection circuits Connection to host equipment 4 hysical requirements Build-in equipment. 4.1 Stability Stability tests Tilt to an angle of 10 Applying 20 % of the weight (max. 250 N), (Floor-standing unit having a mass 25 kg or more) Downward force of 800 N (Floorstanding unit) 4.2 Mechanical strength General The equipment has adequate mechanical strength and construction Steady force test, 10N Components subjected to a steady force of 10N ± 1N age 29

33 TECHNICAL REORT Steady force test, 30N arts of enclosures located in an operator access area and protected by a cover or a door, by a steady force test of 30 N ± 3 N / 5 s Steady force test, 250N External enclosures; steady force test, 250 N ± 10 N / 5 s Impact test Steel ball test Fall test Swing test Drop test Stress relief Drop test - hand-held equipment - desk-top equipment - direct plug-in equipment - transportable equipment Stress relief test; heat test ( C / 7 h) Cathode ray tubes Mechanical strength of cathode ray tubes High pressure lamps Build-in equipment. No cathode tube. Enclosures of high pressure lamps No high pressure lamp Wall or ceiling mounted equipment Adequate mounting means for wall or ceiling mounted equipment 4.3 Design and construction Edges and corners Edges and corners age 30

34 TECHNICAL REORT Handles and manual controls Fixing of knobs, grips, handles, levers and the like Test at (N) Adjustable controls No knobs, grips, handles, lever etc. Adjustment of control devices No adjustments accessible. Adjustment for different power supply voltages Securing of parts Screw, nut, washer, spring or similar part becoming loose Securing of screwed connections Connection of plugs and sockets Interchangeable plugs and sockets Direct plug-in equipment Torque test on direct plug-in equipment Additional torque (Nm) Heating element in earthed equipment rotection of heating elements in class I equipment No loosening of parts impairing creepage distances or clearances likely to occur. No heating elements Batteries No battery. rotection of batteries Components in protection circuit Oil and grease Resistance to oil and grease Dust, powders, liquids and gases roduction of dust or equipment employing powders, liquids or gases Containers for liquids or gases rotection against excessive pressure age 31

35 TECHNICAL REORT Flammable liquids Flammable liquids Radiation rotection against harmful concentration of ionizing radiation or ultraviolet light or laser Ionizing radiation Levels: Effect of UV radiation on materials Levels: Human exposure to UV radiation Levels: Lasers Levels: Other types Types of radiation: 4.4 rotection against hazardous moving parts General rotection against personal injury No danger from the fans, checked with test finger rotection in operator access area Warning and means provided for stopping moving parts rotection in restricted access locations Equipment provided with warning and means for stopping the moving parts rotection in service access areas rotection provided against unintentional contact with hazardous moving parts age 32

36 TECHNICAL REORT 4.5 Thermal requirements Test voltage = 19 / 20 / 24 / 32 / 38.4V DC Measured parts Δt( K) measured U 1 = 19V Δt ( K) measured U 2 = 20V Δt ( K) measured U 3 = 24V Δt ( K) measured U 4 = 32V Δt ( K) measured U 5 = 38.4V Δt ( C) allowed 1) Ambient (101) 22 C 22 C 23 C 22 C 23 C 2) Input connector 3 (900) ) Fuse holder F1 (901) ) On coil L8 (902) ) On transformer T1 (903) ) On coil L2 (904) ) On bulk capacitor C5 (905) ) On photo-coupler U6 (906) ) ON-OFF switch S2 (907) ) On top (908) ) On bottom (909) ) On side (910) Comments: Testing was performed until steady conditions. age 33

37 TECHNICAL REORT Heating 19 VDC and 20 VDC Temperature 40,0 35,0 30,0 25,0 20,0 15,0 10,0 5,0 0,0 101(Seconds) Time (seconds) (C) 900(Value) 901(Value) 902(Value) 903(Value) 904(Value) 905(Value) 906(Value) 907(Value) 908(Value) 909(Value) 910(Value) Heating 24 VDC and 32 VDC Temperature 50,0 40,0 30,0 20,0 10,0 0,0 101(Seconds) Time (seconds) (C) 900(Value) 901(Value) 902(Value) 903(Value) 904(Value) 905(Value) 906(Value) 907(Value) 908(Value) 909(Value) 910(Value) age 34

38 TECHNICAL REORT Heating 38.4 VDC Temperature (Seconds) Time (seconds) (C) 900(Value) 901(Value) 902(Value) 903(Value) 904(Value) 905(Value) 906(Value) 907(Value) 908(Value) 909(Value) 910(Value) Resistance to abnormal heat Ball-pressure test on thermoplastic parts Tested part t / C Impression Requirement Result 2 mm Comments 4.6 Openings in enclosure Top and side openings Openings in the top and side of an enclosure (See Clause and 16) Openings in the top of an enclosure Dimensions: Openings in the sides of an enclosure Dimensions: Openings on the front and rear. The openings were covered by components with flammability V-1. Front: 36 vent openings à 5mm Ø, 1 opening for connector. Rear: 41 vent openings a 5 mm Ø, 2 openings for connectors, 2 openings for LED and 1 opening for ON-OFF switch. Top, bottom and sides: no opening. age 35

39 TECHNICAL REORT Bottom of fire enclosures See Construction Transportable equipment or stationary equipment intended only for use in a restricted access location Doors and covers in fire enclosures Doors and covers in fire enclosure Openings in transportable equipment Transportable equipment provided with means preventing the entering of small metallic objects Adhesives for constructional purposes Barrier or screen secured with adhesive. 4.7 Resistance to fire Methods of achieving resistance to fire Metal enclosure Reducing the risk of ignition and spread of flamme Minimizing the risk of ignition Conditions for a fire enclosure arts requiring a fire enclosure arts requiring a fire enclosure See arts not requiring a fire enclosure arts not requiring a fire enclosure Materials General Flammability of materials and components age 36

40 TECHNICAL REORT Materials for fire enclosures and for components and other parts outside fire enclosures Materials for fire enclosures Materials for components and other parts outside fire enclosures Materials for components and other parts inside fire enclosures The materials for components and other parts shall be of flammability class V-2. Exemptions Considered Cord anchorage bushings Wiring harnesses Materials for air filter assemblies Air filter assemblies Materials used in high-voltage components HV components shall be of flammability class V-2 material. 5 Electrical requirements and simulated abnormal conditions 5.1 Touch current and protective conductor current General Touch current nor protective conductor current is likely to create an electric shock hazard. Test voltage (V) Measured current Maximun allowed touch current (ma) Maximun allowed protective conductor current No high voltage components. No connection to mains. age 37

41 TECHNICAL REORT Equipment with touch current exceeding 3,5 ma Equipment with touch current exceeding 3,5 ma Touch current to telecommunication networks and cable distribution systems and from telecommunication networks Limitation of the touch current to a telecommunication network and a cable distribution system Maximun allowed current = 0,25mA r.m.s Summation of touch currents from telecommunication networks EUT with connection of multiple items of other telecommunication equipment shall not create hazards for users and service personnels. 5.2 Electric strength Location Test voltage Result Insulation layer between WB and heat sink 3000VAC/1min 5.3 Abnormal operating and fault conditions rotection against overload and abnormal operation Risk of fire or electric shock limited Motors Motors (see Annex B) Transformers Transformers No excessive temperatures when fan was stalled. Tests done with U input = 24 / 32 VDC. Transformer T1 and T4 were separately tested, see DNV report age 38

42 TECHNICAL REORT Functional insulation Functional insulation Method used Electromechanical components Electromechanical components in secondary circuits Other components and circuits Simulation of faults Test under any expected condition and foreseeable misuse Unattended equipment Equipment for unattended use Compliance criteria for abnormal operating and fault conditions Compliance during and after the tests Vent openings blocked. Ambient temperature 23 C Abnormal operating and fault condition tests Manufacturer Nera No Component Fault Test voltage Test time Fuse Fuse current (A) Comments / results 01 Output J1 Shorted 24VDC No hazards 02 D D C Q1 (2-3) C C age 39

43 TECHNICAL REORT Electrical data U in (V DC) in (W) I in (A ) I out (A ) Conditions / status RFB level to Connection to telecommunication networks No TNV circuits. Mains power system used as telecommunication transmission medium 6.1 rotection of telecommunication network service persons, and users of other equipment connected to the network, from hazards in the equipment rotection from hazardous voltages Circuitry complies with the requirements for: - SELV circuit or - TNV circuits Adequate installation instructions and other relevant literature. age 40

44 TECHNICAL REORT Separation of the telecommunication network from earth Requirements Insulation provided between TNV circuits and earthed circuits, either within the EUT or via other equipment. D.C. sparkover voltage of surge suppressors bridging the insulation. Surge suppressors complying with the electric strength test. Electric strength tests: V V Additional test: No breakdown of insulation during the electric strength test Components bridging the insulation not damaged Current 10mA Exclusions - ermanently connected equipment or pluggable equipment type B - Equipment installed by service personnel and has adequate installation instructions. - Equipment with permanently connection to earth and provided with adequate installation instrctions. age 41

45 TECHNICAL REORT 6.2 rotection of equipment users from overvoltages on telecommunication networks Separation requirements Adequate electrical separation is provided between TNV circuits and: a) unearthed conductive / nonconductive parts of the equipment expected to be held or touched during normal use b) parts and circuitry that can be touched by the test finger c) circuitry provided for connection of other equipment Connection of circuitry having permanent earth connection Electric strength test procedure Impulse test a) : 2500V N.A. b) and c) : 1500V N.A Steady-state test a) : 1500V b) and c) : 1000V Compliance criteria No breakdown of insulation during the tests. Operation of surge suppressors during the tests. 6.3 rotection of the telecommunication wiring system from overheating For equipment intended to provide power over the telecommunication wiring system to remote equipment. Current limit 1.3A Compliance is checked by test age 42

46 TECHNICAL REORT 7 Connection to cable distribution systems 7.1 rotection of cable distribution system service persons, and users of other equipment connected to the system, from hazardous voltages in the equipment Circuitry connected to a cable distribution system 7.2 rotection of equipment users from overvoltages on the cable distribution system Requirements and tests of 6.2 apply 7.3 Insulation between primary circuits and cables distribution systems Voltage surge test Test applied between: Impulse test Test applied between: age 43

47 TECHNICAL REORT Annex 1 Tests for resistance to heat and fire, A1 and A2 flammability test A1 Flammability test for fire enclosures of movable equipment having a total mass exceeding 18 kg and of stationary equipment. A2 Flammability test for fire enclosures of movable equipment having a total mass not exceeding 18 kg and materials located within fire enclosure. The mass of equipment Kg. The material is tested according to A reconditioning at C for 7 days (168 h) Mounting of samples during test Wall thickness Sample Burning time Comments Material complies with the requirement Metal enclosure. Information about the tested material Manufacturer Type Additional information: age 44

48 TECHNICAL REORT Annex 2 Motor tests under abnormal conditions osition Fan Manufacturer Cestech Type D06F04HWBAW1 Rated voltage (V) or current (A) 12 VDC 0.13A B.2 Test conditions B.3 Temperatures B.4 Running overload test B.5 Locked-rotor overload test -- Test duration (days) -- Electric strength test: test voltage (V) -- B.6 Running overload test for d.c. motor in secondary circuits B.7 Locked-rotor overload test for d.c. motor in secondary circuits B.7.1 Test procedure -- B.7.2 Alternative test procedure -- B.7.3 Electric strength test -- B.8 Test for motors with capacitor -- B.9 Test for three-phase motors -- B.10 Test for series motors -- age 45

49 TECHNICAL REORT Annex 3 Location Tested insulation Working voltage Working voltage peak Required electric strength Transformers Required clearance Required creepage distance Required distance thr.insul. T2 - IDU Reinforced 125V V 3.8mm 3mm 0.4mm Location Tested insulation Test voltage (VAC/1min) Measured clearance Measured creepage distance Measured distance through insulation or number of layers Comments: T1 and T4 were separately tested to , see DNV report Construction / Winding diagram / Component part no: Annex 4 Ionizing radiation Measured radiation Measured high-voltage Measured focus voltage CRT markings Approved by ublication used age 46

50 TECHNICAL REORT Annex 5 Thermal controls K.1 Components have adequate making and breaking capacity Components are tested in the equipment. No sustained arcing occurred during the tests - - Compliance after the tests - K cycles of operation for thermostats with normal load and voltage K cycles of operation for thermostats with normal load and voltage K cycles of operation for temperature limiters with normal load and voltage K.5 Thermal cut-out reliability - Equipment operating under conditions specified in times of operation for automatic reset thermal cut outs. 10 times of operation for manual reset thermal cut outs No damages to samples after the tests - K.6 Setting of thermostats, temperature limiters and thermal cut outs not affected by heating, vibration - age 47

51 TECHNICAL REORT Annex 6 Manufacturer Type Voltage Capacity Tested and Certified by Ref. no Max. rated reverse (charging) current Is two semiconductors in series accepted? Result Replaceable by the operator/ serviceman Can it be mounted in the wrong position? Surrounding temperature Circuit diagram : Lithium battery Max. reverse current (at fault condition) Language of markings and instructions Inside the equipment In the service manual In the users manual GB SE DK NO FI age 48

52 TECHNICAL REORT Annex 7 Manufacturer Type Separately tested Connected over insulation External creepage distance Internal creepage distance Distance through insulation Opto electronic device Infineon Technologies SFH FI Reinforced 8.2mm 4.9mm 0.5mm Tested in the following conditions Input Output age 49

53 TECHNICAL REORT Annex 8 EN (2001) Explanation for abbreviations: C = common modification, S = special national condition. AT = Austria, UK = United Kingdom, CH = Switzerland, DE = Germany, DK = Denmark, FI = Finland, FR = France, NO = Norway, SE = Sweden. ass = pass, Fail = fail, N.A. = not applicable, placed in the column to the right. C Delete all the country notes in the reference document S (DK). In Denmark certain types of Class I appliances (see 3.2.1) may be provided with a plug not establishing earthing continuity when inserted into Danish socket-outlets S (NO). Due to the IT power system used, capacitors are required to be rated for the applicable phase to phase voltage (230V) S (FI, NO, SE). Class I pluggable equipment type A intended for connection to other equipment or a network shall, if safety relies on connection to protective earth or if surge suppressors are connected between the network terminals and accessible parts, have a marking stating that the equipment must be connected to an earthed mains socketoutlet. The marking text in the applicable countries shall be as follows S (DK). Socket-outlets for providing power to other equipment shall be in accordance with the Heavy Current Regulations, section D1, standard sheet DK 1-3a, DK 1-5a or DK 1-7a when used on Class I equipment. For stationary equipment the socket-outlet shall be in accordance with standard sheet DK 1-1b or DK 1-5a. Considered. age 50

54 TECHNICAL REORT S (NO) Requirements according to this annex, and apply S (NO) Requirements according to this annex, apply S (NO). Requirements according to this annex, and apply S (NO) Requirements according to this annex, and apply S (UK) The current rating of the circuit shall be taken as 13A, not 16A C Replace the sub-clause as follows: Basic requirements To protect against excessive current, shortcircuits and earth faults in primary circuits, protective devices shall be included either as integral parts of the equipment or as parts of the building installation, subject to the following a), b), and c): a) Except as detailed in b) and c), protective devices necessary to comply with the requirements of 5.3 shall be included as parts of the equipment. b) For components in series with the mains input to the equipment such as the supply cord, appliance coupler, r.f.i. filter and switch, short circuit and earth fault protection may be provided by protective devices in the building installation. c) It is permitted for pluggable equipment type B or permanently connected equipment, to rely on dedicated overcurrent and short circuit protection in the installation, provided that the means of protection, e.g. fuses or circuit breakers, is fully specified in the installation instruction. If reliance is placed on protection in the building installation, the installation instructions shall so state, except that for pluggable equipment type A the building installation shall be regarded as providing protection in accordance with the rating of the wall socket outlet. age 51

55 TECHNICAL REORT S (UK) To protect against excessive currents and short-circuits in the primary circuit of direct plug-in equipment, protective devices shall be included as integral parts of the direct plug-in equipment C This subclause has been declared: Void C Replace in the first line Considered S (NO). Due to the IT power distribution system used, the AC mains supply voltage is considered to be equal to the line-to-line voltage, and will remain at 230V in case of a single fault S (CH). Supply cords of equipment having a rated current not exceeding 10A shall be provided with a plug complying with SEV 1011 or IEC and one of the following dimension sheets: SEV plug type N + E 250/400V, 10A SEV plug type 11 L + N 250V, 10A SEV plug type 12 L + N + E 250V, 10A. In general, EN applies for plugs for currents exceeding 10A. However, a 16A plug and socket-outlet systeem is being introduced in Switzerland, the plugs of which are according to the following dimension sheets, published in Feb. 1998: SEV lug Type 25 3L+N+E 230/400V, 16A SEV lug Type 21 L+N 250V, 16A SEV lug Type 23 L+N+E 250V, 16A (DK). Supply cords of single phase equipment having a rated current not exceeding 10A shall be provided with a plug according to the Heavy Current Regulations section D1. age 52

56 TECHNICAL REORT S Class I equipment provided with socket-outlets with earth contacts or which are intended to be used in locations where protection against indirect contact is required according to the wiring rules shall be provided with a plug in accordance with standard sheet DK 2-1a or DK 2-5a. If poly-phase equipment and single phase equipment having a rated current exceeding 10A is provided with a supply cord with a plug, this plug shall be in accordance with the Heavy Current Regulations Section D1 or EN (Spain) Supply cords of single-phase equipment having a rated current not exceeding 10A shall be provided with aplug according to UNE 20315:1994. Supply cords of single-phase equipment having a rated current not exceeding 2.5A shall be provided with a plug according to UNE-EN 50075:1993. Class I equipment provided with socket outlets with earth contacts, or which are intended to be used in locations where protection against indirect contact is required according to the wiring rules, shall be provided with a plug in accordance with UNE 20315:1994. If poly-phase equipment is provided with a supply cord with a plug, this plug shall be in accordance with UNE -EN (UK). Apparatus which is fitted with a flexible cable or cord and is designed to be connected to a mains socket conforming to BS 1363 by means of that flexible cable or cord, shall be fitted with a standard plug in accordance with Statutory Instrument 1786: The plugs and sockets etc. (safety) Regulations 1994, unless exempted by those regulations. Note: standard plug is defined in SI 1768: 1994 and essentially means an approved plug conforming to BS 1363 or an approved conversion plug age 53

57 TECHNICAL REORT S (IR) Apparatus which is fitted with a flexible cable or cord and is designed to be connected to a mains socket conforming to IS 411 by means of that flexible cable or cord and plug shall be fitted with a 13A plug in accordance with Statutory Instrument 525:1997- National Standards Authority of Ireland (section 28) (13A lugs and Conversion Adaptors for Domestic Use) Regulations C Delete note 1, and in table 3A, delete the conduit sizes in parentheses S (UK). A power supply cord with conductor of 1.25mm² is allowed for equipment with a rated current over 10A and up to and including 13A C Replace "60245 IEC 53" by "H05 RR-F", "60227 IEC 52" by "H03 VV-F or H03 VVH2-F" "60227 IEC 53" by "H05 VV-F or H05 VVH2-F2". In table 3B, replace the first four lines by the following: Up to and including ) Over 6 up to and including (0.75) 2) Over 10 up to and including (1.0) 3) In the conditions applicable to table 3B delete the words "in some countries" in condition 1). In Note 1, delete the second sentence C In table 3D, delete the 4 th line conductor sizes for 10 to 13A, and replace with the following: "Over 10 up to and including 16: 1.5 to to 4." Delete the 5 th line conductor sizes for 13 to 16A. Considered. Considered. Considered. age 54

58 TECHNICAL REORT S (UK). The range of conductor sizes of flexible cords to be accepted by terminals for equipment with a rated current of over 10A and up to and including 13A is: 1.25mm² to 1.5mm² nominal crosssectional area S (GB). The torque test is performed using a socket-outlet complying with BS 1363 and the plug part of direct plug-in equipment shall be assessed to BS 1363: art 1, 12.1, 12.2, 12.3, 12.9, 12.11, 12.12, and 12.17, except that the test of is performed at not less than 125ºC. (IR) Direct plug in equipment is known as plug similar devices. Such devices shall comply with Statutory Instrument 526:1997- National Standards Authority of Ireland (Section 28) (Electrical plugs, plug similar devices and sockets for domestic use) Regulations, C Add the following note: NOTE Attention is drawn to 1999/519/EC: Council Recommendation on the limitation of exposure of the general public to electromagnetic fields 0Hz to 300GHz. Standards taking into account this Recommendation are currently under development. Considered. age 55

59 TECHNICAL REORT S (FI, NO, SE). Add the following text between the 1 st and the 2 nd paragraph: If this insulation is solid, including insulation forming part of a component, it shall at least consist of either - 2 layers of thin sheet material, each of which shall pass the elctric strength test below, or - 1 layer having a distance through insulation of at least 0.4mm, which shall pass the electric strength test below. If this insulation forms part of a semiconductor component eg an optocoupler, there is no distance through insulation requirement for the insulation consisting of an insulating compound completely filling the casing, so that clearances and creepage distances do not exist, if the component passes the elctric strength test in accordance with the compliance clause below and in addition: - passes the tests and inspection criteria of with an electric strength test of 1.5kV x 1.6 (the electric strength test of shall be performed using 1.5kV); and - is subject to routine testing for electric strength during manufacturing, using a test voltage of 1.5kV. It is permitted to bridge this insulation with a capacitor complying with EN :1994, subclass Y2. A capacitor classified Y3 according to EN :1994, may bridge this insulation under the following conditions: - the insulation requirements are satisfied by having a capacitor classified Y3 as defined by EN , which in addition to the Y3 testing, is tested with an impulse test of 2.5kV defined in EN 60950:2000, ; - the additional testing shall be performed on all the test specimens as described in EN ; - the impulse test of 2.5kV is to be performed before the endurance test in EN , in the sequence of tests as described in EN age 56