SECTION 07 TECHNICAL SPECIFICATIONS OF FOR 415V, 3-PHASE, 630 AMPS MCCB & ENCLOSURE
7.0 TECHNICAL SPECIFICATIONS/ REQUIREMENTS OF 415V, 630A, 3-PHASE MCCB WITH ENCLOSURE 7.1 GENERAL This section of the document includes the design, manufacture, testing & inspection of 415V, 630A, 3-Phase MCCB with Enclosure as specified. 7.2 CLIMATE DATA The equipments to be supplied against this tender shall be suitable for satisfactory use under the following climatic condition: Climate : Tropical, intense sunshine, heavy rain, humid. Maximum Humidity and Temperature sometimes occur simultaneously. Maximum Temperature : 50 0 C Minimum Temperature : 0 0 C Maximum yearly weighted average temperature : 30 0 C Relative Humidity : 50-100% Annual mean Relative Humidity : 75% Average annual rain fall : 3454 mm Maximum wind velocity : 200 km/ hour Average isokeraunic level : 80 days/ year Maximum altitude above the sea level : 2000 metres Atmospherically, Mechanical and Chemical : In accordance with IEC / EN impurities 60947-1 and IEC / EN 60664-1 for pollution degree 3 MCCB as specified will be installed in tropical locations and in a hot humid environment with presence of the insects and vermin. The information is given as a guide for Tenderers and no responsibility for its accuracy will be accepted, nor will any claim based on the above be entertained. 7.3 SYSTEM PARTICULARS SL. NO. SYSTEM CHARACTERISTICS 1. Norm a l S y s t e m Vo lta g e, K V ( Vo lt a g e C la s s ) VOLTAGE LEVEL 230 132 33 11 0. 4 1 5 3. M a x imu m Sy s t e m Vo lt a g e, K V 245 145 36 12 0. 4 5 7 4. Sy s t e m F r e q u e n c y, H z 50 50 50 50 50 5. Ph a s e R o t a t i o n ( An t i - Cl o c k wi s e ) R ST R ST R ST R ST R ST 6. T y p e o f Sy s t e m G r o u n d i n g So li d So li d So li d So li d So li d 7. Rat e d F a u lt L e v e l (3- P h a s e S y m m e t r ica l), M V A 3 s e c. 12550 6000 1500 381 40 8. Ba s i c I n s t a lla t i o n L e v e l, K V 750 650 170 75 0. 6 9 0 L O W V O L T A G E 415/ 2 4 0 V C H A R A C T E R I S T I C S : 9. Normal System Voltage, V ( Vo lt a g e C la s s ) 415/ 240 10. Type of System Grounding Solid
7.4 STANDARD Design, Manufacture, Testing, Installation and Performance shall be in accordance to the latest editions of IEC 60947-1, IEC 60947-2, & IEC 60947-3 and IEC / EN 60068-2-27 or equivalent international acceptable standards. The offered equipment should meet EMC in accordance with IEC 61326 including amendment No. 1, Safety requirements of IEC1010-1 or equivalent other international acceptable standard. 7.5 SPECIFICATION 1.0 GENERAL : 1.1 Description This circuit breaker is required for transformer secondary and or feeder protection. 1.2 Installation Outdoor pole mounted. 1.3 Climatic condition : a) Temperature (min. to max.) 0 C to 50 C b) Relative humidity 95% c) Altitude (above sea level) Up to 2000 meters above sea level d) Atmospheric condition In accordance with IEC / EN 60947-1 and IEC / EN 60664-1 for pollution degree 3 1.4 Minimum protection degree of the unit IP40 as per IEC 60529 2.0 MOLDED CASE 3-PHASE CIRCUIT BREAKER : 2.1 Frame size 630 Amps 2.2 Rated operating voltage 415 volts AC Maximum Voltage (Ue, max.) 690 volts 2.3 Rated insulation voltage i.e. 800Volts AC maximum system voltage (U i) Rated Impulse withstands 8.0 kv voltage i.e. U imp 2.4 Rated frequency 50-60Hz 2.5 Number of Poles 3 (three), for three phase operation 2.6 Rated continuous current at 630 Amps 50 C 2.7 Rated service Short circuit Breaking capacity i.e. I cs Maximum Short circuit Breaking capacity i.e. I cu shall be 85 KA or higher A @415V, having operational short circuit breaking facility at 85 ka or higher A @415V (I cs). 2.8 Operating Mechanism Quick make, quick break type, Manual ON/OFF, automatic and Manual Trip, Mechanically trip free, Indicator for ON- TRIP-OFF position. Must be equipped with push to Trip button in front of Breaker. 2.9 Trip : Electronic Trip Unit with LED Status. LED Panel will represent ETU ready signal, Current Flow range, Over Temperature Alarm, Internal Fault on Trip Unit. The trip unit must have adjustable parameter settings Ir and tr for overload protection (L) adjustable parameter setting Ii for instantaneous short-circuit protection (I) adjustable parameter settings Ig and tg for groundfault protection (G)
2.10 Electrical Operation Device Motor operated type or Spring Charge type 2.11 Construction Contacts shall be made of silver alloy bolted terminal for frontwire on entry from top and bottom. The unit shall be weather proof, dust proof and tropicalized, toggle switch for for ON- OFF operation. Appropriate design grid arc quenchers to make it safe at highest interrupting duty. Main parts of the MCCB must be protected in a molded case to protect this form water. 2.12 Shock resistance MCCBs shall be insensitive to Vibrations and meet requirements on mechanical & electromechanical vibration strength according to IEC/EN 60068. Also, suitable for Shock resistance without tripping up to 10g (IEC / EN 60068-2-27) 2.13 Standards Design, Manufacture, Testing, Installation and Performance shall be in accordance to the latest editions of IEC 60947-1 and IEC 60947-2 or equivalent international standards. 7.6 FEATURES AND ACCESSORIES 1. Terminals shall be completed with bolts and suitable for copper and aluminum cable for adequate size. 2. Suitable manually operated neutral disconnecting link shall be provided for disconnecting the neutral. 3. The unit shall be dust proof, weather proof and moisture proof and shall be tropicalized. 4. Each unit shall be supplied with Constructional and Outline Dimensional drawings, Installation, Operation & Maintenance Manual. 5. Each MCCB shall design with Laser marking 6. Each MCCB Shall have Isolation function as defined by IEC 60947 1 and -2 7. MCCBs shall be insensitive to Vibrations and meet requirements on mechanical & electromechanical vibration strength according to IEC/EN 60068. Also, suitable for Shock resistance without tripping up to 10g (IEC / EN 60068-2-27) 8. MCCBs shall be permissible for mounting in all 3 axes (Vertical Wall, Laterally Rotated Wall, Ceiling & Floor mounting) without any adverse effect on electrical performance. It shall have line load reversibility. 9. MCCB should be fully rated up to 50 Deg C 10. MCCB Dimension should be independent of the ka rating 7.6 INFORMATION REQUIRED The Tenderer/ Manufacturer as per tender requirements shall provide all information. Besides these, the following information has to be submitted along with the tender: (a) Manufacturer s drawing showing outline dimension of the offered MCCB, Enclosure of MCCB and position of the MCCB in the Enclosure and fixing arrangement of the Enclosure on the pole. (b) Construction, Installation, Operation & Maintenance Manual. (c) Printed catalogue of offered type MCCB describing Electrical settings, interrupting current and other associated data and information. (d) Characteristics curve of offered type MCCB. (e) Manufacturer's valid ISO Certificate. (f) Manufacturer s EMC Certificate of Conformity. (g) Manufacturer s EU or CE & UL Certificate conformity. (h) Manufacturer s Safety Certificate of Conformity from UL, UK or CSA, Canada. 7.7 DOCUMENTATION The following documents are to be submitted along with the bid, otherwise the bid will be rejected: Type Test Reports: Type Test Reports (as stated in Clause 7.8) for offered Model/ Type 415V, 3-PHASE, 250A MCCB as per relevant Standards in English along with test result from anyone of the following independent testing Laboratory;
a) KEMA, Holland / VDE Test Report b) CESI, Italy /DNV, GL c) Office of the Gas and Electricity Market, UK/SGS, UK, The bidder shall also submit the type test reference number and contact person from the independent test laboratory to verify the test report. NOTE : THE PARAMETERS/TECHNICAL DATA IN GTP SHALL BE SUPPORTED BY TEST REPORT. 7.8 TEST CERTIFICATES & REPORTS The following test certificates and reports including tests carried out for the offered type in accordance with the Latest version of IEC-60947-1 & IEC-60947-2 standards which are issued by an approved, internationally acknowledged, reputable independent testing laboratory as mentioned in cl. 7.7B (5) by confirming design to the tender document shall be submitted with the offer. a) Temperature Rise test. b) Dielectric properties test. c) Short Circuit. Making and Breaking capacities test. d) Mechanical operation and of mechanical & electrical endurance. e) Overload performance test. f) Tripping characteristics test. 7.9 APPROVAL OF DRAWINGS AND SPECIFICATIONS Design, Drawing, Diagrams, Specification and Guaranteed Technical Particulars etc. shall be submitted to the Engineer, Director, Design & Inspection II, BPDB by the Bidder for approval, prior to the manufacturing of the goods. The Bidder shall have to submit 3 (three) sets of the same for Approval within 15 days from the date of signing Contract. It is noted that the supplier shall have to deliver the goods within the stipulated time. The submittal shall include the catalogues of the offered goods. 7.10 TESTS AT MANUFACTURERS WORKS GENERAL Functional electrical, material, mechanical and hydraulic tests shall be carried out at manufacturers premises. The extent and method of recording the results shall be agreed by the Purchaser in ample time to enable the tests to be satisfactorily witnessed or to make any changes to the proposed program of tests. MATERIAL TESTS The supplier shall provide test pieces free of charge as required to enable the quality of the material to be determined at the supplier s expense. Purchaser may at its own discretion and by specific arrangement accept certified particulars of tests carried out in the absence of his authorized representative. TYPE TEST Type tests are required to prove the general design of the offered equipments/ materials. The Tenderer shall submit the type test reports of the offered equipments/ materials from internationally reputed independent testing laboratory as per latest version of relevant IEC/ BS or equivalent international standards as mentioned in the tender. ROUTINE TESTS All equipments/ materials shall be subjected to routine tests as per latest version of relevant IEC/ BS or equivalent international standards as mentioned in the tender at the manufacturers works and shall include, but not be limited to, an operational test. 7.11 TECHNICAL ORIENTATION AND QUALITY TEST WITNESS Witnessing of the manufacturing process and tests of the equipment at manufacturer s premises including transfer of technical know-how shall be required/held as detailed elsewhere in Particular Conditions of Contract (GCC 32.1) of tender document and other than this the following will be as follows:
The Purchaser or its representative shall have the right to inspect, examine and test the workmanship and performance of the goods/materials to confirm their conformity to the specification. The Purchaser or its representative shall be entitled at all reasonable time during manufacture or after manufacture to inspect, examine and test of goods/materials at the manufacturers premises, workmanship and performance. The test shall be carried out as per latest version of relevant IEC/ BS or equivalent international standards as mentioned in the contract at the manufacturer premises. An inspection team will be formed by Purchaser or its representative immediate after signing of the contract to control the quality and monitoring the manufacturing process (where required). The manufacturer will allow inspection team to inspect the manufacturing process and quality control and progress of the work at any time need by BPDB s inspection team. This team will witness the Factory/Technical orientation & Quality test at the manufacturer's plant. The Manufacturer shall have facilities to carry out all tests at its premises and shall provide free of charge such assistance, labor, materials, electricity, fuel, stores, apparatus and instruments as may be requisite and as may be reasonably demanded to carry out such test efficiently. The inspection team maximum 2 (two) times may inspect (if required) the goods during the manufacturing process or after manufacture of Goods as required and shall also request to supplier for the purchase/ import/ shipping documents of major/key materials of Goods and shall check in accordance with Guaranteed Technical Particulars (GTP) and guarantees of the contract. All expenses for such tests shall be borne by the supplier. The manufacturer shall have all testing facilities at the manufacturer's premises to carry out the tests in accordance with the relevant IEC Standards. If, any test(s) pending due to lack of testing facilities at the manufacturer's premises, then the Inspection team shall select sample of Goods and sent the selected sample to any independent Testing Laboratory of the manufacturer's country to carry out the test(s). All cost of testing of the selected sample(s) including carrying, loading, un-loading etc. will be borne by the supplier. The Supplier shall, after consulting the purchaser, give notice to the Purchaser in writing of the date and the place where the material or equipment will be ready for quality witness testing. When the purchaser intends to attend the test he shall promptly inform the supplier accordingly in writing, so that supplier can take action. The purchaser shall give the supplier timely notice in writing of his intention to attend the test. The supplier/ manufacturer shall submit (if required by inspection team) the testing procedure & list of testing/ measuring equipment, meters etc. used for Factory/Technical orientation & Quality test witness prior to carry out such witness test(s). The supplier/ manufacturer shall submit the valid Calibration Certificate from competent authority of the testing/ measuring equipments, meters etc. used for Factory/Technical orientation & Quality test and the following documents to inspection team prior to carry out such witness test(s). I. Updated valid Calibration Certificates of the testing/ measuring equipments, meters etc. used for Factory/Technical orientation & Quality test. II. The factory test report (Routine test report) of Goods to be supplied under the contract. Failing to submit the above documents, the inspection team may not perform to carry out such witness test(s) and all the liabilities along with delay (if any) will be borne by the Bidder/Manufacturer. It is noted that at the time of Factory/Technical orientation & Quality Test witness BPDB's Inspection team will check the calibration seal/ certificate of the testing/ measuring equipment, meters etc. by the competent authority. If the calibration seal/ certificate of the testing/ measuring equipment, meters etc. are not found and the calibration not done within the due date then BPDB's Inspection team will not witness the test. In that case the Bidder/ Manufacturer shall complete the calibration of the testing/ measuring equipment, meters etc. from the competent authority within a reasonable period without any delay in delivery period. The Factory/Technical orientation & Quality Test witness shall be carried out as per latest version of relevant IEC/BS/ANSI/ASTM/BDS or equivalent international standards as mentioned in the contract at the manufacturer's premises or other places where the required test facilities are available and only routine tests as agreed upon inspection team will be performed. All expenses for such tests shall be borne by the supplier. When the purchaser intends to attend the test he shall promptly inform the supplier accordingly in writing, so that he can take action. The purchaser shall give the supplier timely notice in writing of his intention to attend the test. Where the supplier provides for tests on the premises of the supplier or of any manufacturer of the supplier, except where otherwise specified, shall provide free of charge such assistance, labor, materials, electricity, fuel, stores, apparatus and instruments as may be requisite and as may be reasonably demanded to carry out such
test efficiently. These tests shall be performed as per latest version of relevant IEC/ BS or equivalent international standards as mentioned in the tender and only routine tests as agreed upon, will be performed. As and when the purchaser is satisfied that any materials/ equipments shall have passes the tests referred to in this clause, purchaser shall notify the contractor in writing to that effect. Should any inspected/ tested goods fail to conform to the specification, the Purchaser shall have the right to reject any of the items or complete batch if necessary. In that case Supplier has to replace the equipment and to make good of them and the supplier shall conduct similar pre-delivery Inspection and factory tests without any financial involvement to the purchaser. In case any of the Equipment found not conforming to the specification at the time of post landing Inspection, the supplier will in no way be relieved from the responsibility of replacing them on making them good at their own cost, despite the Equipment were found good at the time of Factory Acceptance Test. Nothing in this clause shall in any way release the supplier from any warranty or other obligations under the tender. No goods shall be packed, prepared for shipment/delivery unless it has been approved including factory Test reports and written instructions have been issued by the Purchaser. On successful completion of Pre-shipment inspection/quality test witness, delivery of goods will be made to the designated stores under contractor s/supplier s responsibility until Post-Landing Inspection is successfully completed without any obligation on part of BPDB. Quality and quantity of the delivered goods will be determined at the time of post-landing inspection at the designated stores in presence of the authorized representative of the contractor/supplier. After approval of the satisfactory Post-Landing Inspection, R&I Report will be issued following the contractual obligations. The goods supplied under this Contract shall be fully insured in addition, All risks insurance, including war risks, riots, strikes and/or theft shall be acquired for 110% of the delivered cost of the goods on Warehouse to Warehouse basis until the issuance of the R & I after satisfactory completion of Post-Landing Inspection of the goods supplied. The Tenderer has mentioned the place of Technical Orientation and Quality Test Witness in the following table:- Sl. Period of Technical Orientation Place & Country of Technical Item No. and Quality Test Witness Orientation and Quality Test Witness 7.12 POST-LANDING INSPECTION AND TESTING : The Supplier shall inform the purchaser immediately after arrival of the goods at the designated store of BPDB (as per delivery schedule). An Inspection team of BPDB shall perform the post-landing inspection in presence of supplier's representative. The Supplier shall arrange the program of post-landing inspection. Any defect or damage have been found at post-landing inspection, the defective or damaged materials/ goods to be replaced by the supplier at his own cost within the stipulated time. The purchaser s right to inspect, test (where necessary) and reject the goods after delivery at the designated store of BPDB shall in no way be limited or waived by reason of the goods having previously been inspected, tested and passed by the purchaser prior to the good's delivery. The Inspection team will check the physical conditions and quantity of the goods delivered. If necessary, the inspection team will select the sample of good(s) and sent the selected sample goods to CERS, BPDB or BUET/ CUET/ KUET /RUET (as selected by the inspection team) to carryout the test(s) as per contract to confirm the conformity to the approved Technical Specifications, Guaranteed Technical Particulars (GTP), drawings and relevant standards. If the tested sample(s) fail to confirm the specifications in tests, the full consignment will be rejected. All cost of testing of Materials/ Goods including carrying, loading, un-loading etc. will be borne by the supplier. 7.13. PACKAGING AND SHIPPING Packing of equipment has been detailed elsewhere in Particular Conditions of Contract of tender document. - : -
Section - 8 GUARANTEED TECHNICAL DATA SCHEDULE FOR 415V, 3-PHASE, 630 AMPS MCCB & ENCLOSURE
8.1. MANUFACTURER S GUARANTEED TECHNICAL DATA SCHEDULE FOR 415V, 3-PHASE, 630 AMPS MCCB (To be filled up with the Seal & Signed by both manufacturer and bidder in Manufacturer s Letterhead Pad, with appropriated data otherwise the bid will be rejected) SL. BPDB'S DESCRIPTION NO. REQUIREMENT 01. Manufacturer s name & address 02. Country of Origin USA/UK/EU/Japan/Australia 03. Manufacturer s model no. 04. Operating voltage 415 V AC 05. Max. system voltage 457 V AC 06. Rated continuous current 630 Amps. 07. Range of Adjustment Maximum Minimum 630A 400A 08. Number of poles 3 (three) 09. Rated insulation voltage i.e. maximum system voltage (Ui) 800 Volts AC 10. Max. rated operational voltage 690 V AC 11. Dielectric strength of electrical circuit 1500V or higher 12. Rated Impulse withstands voltage i.e. Uimp 8.0 kv 13. Frame size 630 Amps. 14. Switching capacity according to IEC 60947 a. Switching capacity class of the circuit breaker M b. Maximum short-circuit current breaking capacity (Icu) at 415V c. Operational short-circuit current breaking capacity (Ics) at 415V 85KA or higher 85KA or higher d. Short-circuit current making capacity (Icm) 110KA or higher e. Ground Fault Protection Ig up to 630 A or higher 15. Automatic Tripping Device Electronic 16. Trip Button Shall be incorporated 17. Electrical trip setting Current setting of the inverse time delayed overload protection Ir Time setting range for Ir, tr Operating current of the instantaneous short-circuit Protection Ii Ground Fault Protection Ig Time setting range for ground fault Ig 250-630 Amp or higher up to 630 Amp 0.1-0.3 Second MANUFACTURER'S GUARANTEED DATA Seal & Signature of the Manufacturer Seal & Signature of the Bidder
8.1. MANUFACTURER S GUARANTEED TECHNICAL DATA SCHEDULE FOR 415V, 3-PHASE, 630 AMPS MCCB (To be filled up with the Seal & Signed by both manufacturer and bidder in Manufacturer s Letterhead Pad, with appropriated data otherwise the bid will be rejected) 17. Electrical trip setting Current setting of the inverse time delayed overload protection I r Time setting range for I r, t r Operating current of the instantaneous short-circuit Protection I i Ground Fault Protection I g Time setting range for ground fault I g 250-630 Amp or higher up to 630 Amp 0.1-0.3 Second 18. Pollution Degree 3 19. Protection class IP 40 20. operating temperature 0ºC to 50ºC 21. Mechanical service life (switching cycles) / typical Min.10,000 cycle 22. 23. Electrical endurance (switching cycles) / at AC-1 / at 380/415 V 50/60 Hz Active power loss / for rated value of the current / at AC / in hot operating state / per pole 24. Operating mechanism As cl. 7.5 2.8 of spec. 25. Construction As cl. 7.5 2.11 of spec. 26. Nominal dimension (Height x Width x Depth) 27. Built In accessories (mm x mm x mm) Pre alarm, Over-current trip alarm and others as per sec.7.5 28. Mechanical Interlock Yes 29. Indication for ON-TRIP-OFF position three positions: ON, OFF and TRIPPED 30. Original Printed catalogue To be furnished 31. Dimensional drawing To be furnished 32. Weight, Kg To be furnished 33. Connection technology Lug Type 34. Scanning(QR Code) of the product Code Shall be provided 35. Shock resistance(earth quake) without tripping 36. IEC Standards for Design, manufacture, testing and performance. Yes up to 10g (IEC / EN 60068-2-27) latest editions of IEC 60947-1, IEC 60947-2 & IEC 60947-3 standards Seal & Signature of the Manufacturer Seal & Signature of the Bidder
SECTION 9 DRAWINGS (TO BE SUBMITTED BY TENDERER)