UL SUBJECT 1066A-2013 OUTLINE OF INVESTIGATION FOR US NAVAL COMMERCIAL OFF THE SHELF (COTS) DESIGNATED THREE-POLE LOW-VOLTAGE AC POWER CIRCUIT BREAKERS DRAWOUT-MOUNTED TYPE AND ACC-N.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULApril 23, 20131UL 1066AOUTLINE OF INVESTIGATIONFORUS NAVAL COMMERCIAL OFF THE SHELF (COTS) DESIGNATEDTHREE-POLE LOW-VOLTAGE AC POWER CIRCUIT BREAKERS,DRAWOUT-MOUNTED TYPE, AND ACCESSORIES/FUNCTIO

2、NALCOMPONENTS FOR USE ON NON-NUCLEAR NAVAL COMBATANT SHIPSISSUE NO. 1APRIL 23, 2013Summary of TopicsThis is the first issue of the Outline of Investigation for US Naval COTSDesignated Three-Pole Power Circuit Breakers for Use on Non-NuclearNaval Combatant Ships.COPYRIGHT 2013 UNDERWRITERS LABORATORI

3、ES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPRIL 23, 2013UL 1066A2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Normativ

4、e References .43 Glossary .5CONSTRUCTION4 General 54.1 General .54.2 Drawout-mounted .6RATINGS5 General 7PERFORMANCE6 Base Design .77 Initial Qualification Testing .87.1 General .87.2 Test program Q1 .97.3 Test program Q2 .167.4 Test program Q3 187.5 Test program Q4 198 Requalification Testing .218.

5、1 General 218.2 Test program RQ1 .228.3 Test program RQ2 .238.4 Test program RQ3 .23MARKINGS9 General .24APRIL 23, 2013 UL 1066A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover three-pole low-vo

6、ltage AC power circuit breakers, drawout-mounted type,and applicable accessories/functional components intended for use aboard non-nuclear Naval combatantships in electrical assemblies (such as switchgear, switchboards, and load centers) installed on shockisolators (mounts).1.2 Successful initial qu

7、alification testing and requalification testing of circuit breakers/accessories/functional components to the requirements of this Outline shall allow their use inshock-mounted electrical assemblies in non-nuclear Naval combatant ships.2 Normative References2.1 This Outline references the following C

8、OTS specifications:a) UL 1066, Low-Voltage AC and DC Power Circuit Breakers Used in Enclosuresb) UL 1066 Supplement SA, Low-Voltage AC and DC Power Circuit Breakers Used inEnclosures (Naval Use)c) IEC 60947-2, Low-voltage switchgear and controlgear Part 2: Circuit-breakersd) ANSI C37.50 Low-Voltage

9、AC Power Circuit Breakers Used in Enclosures-Test Procedurese) IEEE C37.100 Standard Definitions for Power Switchgear2.2 This Outline references the following military specifications/documents. Specifications/documents canbe accessed at https:/assist.daps.dla.mil/quicksearch/.a) MIL-E-917, Electric

10、Power Equipment, Basic Requirementsb) MIL-HDBK-454, General Guidelines for Electronic Equipmentc) MIL-STD-1399-300B, Interface Standard Section 300B, Electric Power, Alternating Currentd) MIL-STD-202, Test Method Standard, Electronic and Electrical Component Partse) MIL-STD-130, Department of Defens

11、e Standard Practice, Identification Marking of U.S.Military Propertyf) MIL-STD-461, Requirements for the Control of Electromagnetic Interference Characteristicsof Subsystems and Equipmentg) DI-EMCS-80200, Electromagnetic Interference Test Report (EMITR)h) DI-EMCS-80201, Electromagnetic Interference

12、Test Procedures (EMITP)i) MIL-STD-108, Definitions of and Basic Requirements for Enclosures for Electrical andElectronic EquipmentAPRIL 23, 2013UL 1066A4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3 Glossary3.1 See IEEE C37.100 for standar

13、d definitions for power switchgear except as modified or added to bythe requirements of this Outline.3.2 CONNECTED POSITION That position of the removable element (circuit breaker) in which bothprimary and secondary disconnecting devices are in full contact.3.3 CRADLE The stationary element mounted

14、in electrical assemblies for drawout-mounted typecircuit breakers without the necessity of unbolting connections or mounting supports.3.4 DISCONNECTED POSITION That position in which the primary and secondary disconnectingdevices of the removable element (circuit breaker) are separated by a safe dis

15、tance from the stationaryelement (cradle) contacts.3.5 ELECTRONIC DEVICES Active electrical components such as transistors, diodes and integratedcircuits, and associated passive interconnection technologies as would typically be found on a printedcircuit board.3.6 TEST POSITION That position in whic

16、h the primary disconnecting devices of the removableelement (circuit breaker) are separated by a safe distance from those in the stationary element (cradle),and some or all of the secondary disconnecting devices are in operating contact.3.7 WITHDRAWN POSITION That position in which the primary and s

17、econdary disconnectingdevices of the removable element (circuit breaker) are separated by a safe distance from the stationaryelement (cradle) and the removable element (circuit breaker) is fully extended on the cradle rails/tray.CONSTRUCTION4 General4.1 General4.1.1 Circuit breakers and required acc

18、essories/functional components shall meet the constructionrequirements of UL 1066 except as modified or added to by the requirements of this Outline.4.1.2 Required accessories shall include auxiliary switches and undervoltage release devices.4.1.3 Required functional components shall include the pow

19、er operated mechanism, shunt trip devices,mechanical operations counter, cell switch, racking position indicator, stored energy (springs charged)indicator, primary and secondary disconnects, manual trip, ground connection, and contact position(open/closed) indicator.4.1.4 The following materials and

20、 coatings are non-preferred and shall be identified in the qualificationand requalification reports:a) Navy-prohibited materials as defined by MIL-E-917 including estimated maximum weight percircuit breaker and per accessory/functional component.b) Insulating materials which contain halogens, e.g. c

21、hlorine, fluorine, and bromine, whichevolve gases during combustion including estimated maximum weight per circuit breaker andper accessory/functional component.APRIL 23, 2013 UL 1066A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULc) Corros

22、ion-susceptible materials and coatings that are not in accordance with MIL-E-917requirements.d) Organic materials not inherently fungus resistant or validated to be fungus resistant. Refer toMIL-HDBK-454, Guideline 4.e) Lead free solder.4.1.5 All printed circuit boards shall be conformal coated.4.1.

23、6 Aluminum or aluminum alloy conductors or terminals shall not be used.4.1.7 Minimum design creepage and clearance distances shall be identified in the qualification andrequalification reports. Creepage and clearance distances that are not in accordance with MIL-E-917 SetC, and enclosed requirements

24、 shall be clearly identified as maintenance items.4.1.8 In order to comply with the anti-rolling/retention tests specified in Section 7, manual or automaticmeans may be used to prevent the circuit breaker from moving.4.1.9 Circuit breakers over 200 pounds shall be provided with construction suitable

25、 for overhead lifting.4.1.10 A long time delay calibration setting or settings shall be provided to allow circuit breakers to remainclosed for 5 minutes at 150 percent of maximum continuous current rating.4.2 Drawout-mounted4.2.1 Circuit breakers shall be drawout-mounted type.4.2.2 Circuit breaker/c

26、radle configurations shall be provided with connected, test, and disconnected, andwithdrawn positions as defined in Section 3. The connected, test, and disconnected positions shall beshown on the racking position indicator. If the disconnected and withdrawn positions are the same for aparticular des

27、ign, the manufacturer shall state this in the qualification report.4.2.3 When in the connected position, the circuit breaker shall operate manually and electrically and thecircuit breaker main contacts and control circuitry shall be energized.4.2.4 When in the test position, the circuit breaker shal

28、l operate manually and electrically withoutenergizing the circuit breaker main contacts. Control circuitry shall remain energized.4.2.5 When in the disconnected position, the circuit breaker main contacts and control circuitry shall notbe energized. The circuit breaker shall operate manually.4.2.6 W

29、hen in the withdrawn position, the circuit breaker will be in the disconnected position and fullyextended on the cradle rails/tray.APRIL 23, 2013UL 1066A6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULRATINGS5 General5.1 The circuit breakers

30、shall be rated 508 VAC as defined by UL 1066.5.2 The circuit breakers shall be rated 60 Hz as defined by ANSI C37.50.5.3 Recommended frame sizes are shown in Table 5.1.Table 5.1Recommended circuit breaker frame sizes and short-circuit and short-time current ratingsFrame size AC Voltage 60 Hz 60 Hz S

31、hort-circuit currentrating O-CO-CO testsequence60 Hz Short-time currentrating for 1 second duration(Amps) (Nominal) (rms symmetrical kA) (rms symmetrical kA)2000 480 85 854000 480 85 854800 480 85 855.4 The short-circuit and short-time current ratings as defined by UL 1066 and this Outline shall be

32、statedby the manufacturer in rms symmetrical amperes. Recommended short-circuit and short-time currentratings are shown in Table 5.1. Short-circuit and short-time current ratings greater than those shown inTable 5.1 may be substituted.5.5 The recommended nominal operating voltage for accessories and

33、 applicable functional componentsis 120 VAC.5.6 Details on proposed frame sizes, ratings, and nominal operating voltages that are not in accordancewith 5.5 and Table 5.1 shall be submitted to Naval Sea Systems Command (NAVSEA) Electrical SystemsTechnical Warrant Holder (TWH) and TWH representative p

34、rior to the start of testing. NAVSEA ElectricalSystems TWH or TWH representative shall provide final approval of new circuit breaker characteristicsprior to the start of testing.PERFORMANCE6 Base Design6.1 Circuit breakers shall comply with the performance requirements in IEC 60947-2 and/or UL 1066

35、andin addition shall comply with performance requirements in Sections 7 and 8 of this Outline.APRIL 23, 2013 UL 1066A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7 Initial Qualification Testing7.1 General7.1.1 Test Programs Q1, Q2, Q3, an

36、d Q4 shall be conducted as defined by this Outline and in the ordershown in Tables 7.1 7.4, respectively. All tests for a particular test program shall be conducted on one(1) test sample. A new test sample may be used for each test program. One (1) test sample may be usedfor multiple test programs a

37、t the discretion of the manufacturer.Table 7.1Initial qualification test program Q1(See Section 7.2 for details)Test program Q11. Dielectric withstand voltage (full voltage)2. Voltage spike (circuit breakers with electronic devices only)3. Circuit breaker electrical endurance and selected accessory/

38、functional component temperature rise4. Verification of accessories/selected functional components5. Circuit breaker and selected accessory/ functional component temperature rise at 50C ambient and 100 percent maximumcontinuous current rating on main contacts (includes electrical cycling verificatio

39、n)6. Circuit breaker temperature rise at 50C ambient and 150 percent maximum continuous current rating on main contacts for 5minutes (includes long-time delay verification)7. Calibration at 50C ambient8. Rack-out position verification (includes anti-rolling and cradle strength verification)9. Rack-i

40、n position verification10. Mechanical racking endurance11. Inclined operation (includes calibration, electrical cycling, opening/closing time, and anti-rolling verification)12. Dielectric withstand voltage (reduced voltage)Table 7.2Initial qualification test program Q2(See Section 7.3 for details)Te

41、st program Q21. Dielectric withstand voltage (full voltage)2. Circuit breaker mechanical endurance3. Short-time current rating4. Short-circuit current rating (O-CO-CO test sequence)5. Circuit breaker temperature rise at 50C ambient and 100 percent maximum continuous current rating on main contacts6.

42、 Dielectric withstand voltage (reduced voltage)APRIL 23, 2013UL 1066A8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 7.3Initial qualification test program Q3(See Section 7.4 for details)Test program Q31. Electromagnetic interference (ci

43、rcuit breakers with electronic devices only)2. Vibration (includes insulation resistance)Table 7.4Initial qualification test program Q4(See Section 7.5 for details)Test program Q41. Shock fragility2. Dielectric withstand voltage (reduced voltage)7.2 Test program Q17.2.1 General7.2.1.1 One (1) circui

44、t breaker sample of maximum continuous current rating of each frame size andrequired accessories/functional components shall be subjected to Test Program Q1 as defined by thisOutline and in the order shown in Table 7.1.7.2.2 Dielectric withstand voltage7.2.2.1 The dielectric withstand voltage testin

45、g at full voltage shall be conducted in accordance with ANSIC37.50.7.2.3 Voltage spike7.2.3.1 Circuit breakers with electronic devices such as trip units and applicable accessories/ functionalcomponents shall be subjected to voltage spike testing in accordance with MIL-STD-1399-300. Testingshall not

46、 cause false tripping, failure of trip unit, or failure of accessories/functional components.APRIL 23, 2013 UL 1066A 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.2.4 Circuit breaker electrical endurance and selected accessory/functional

47、component temperaturerise7.2.4.1 Testing requirements and pass/fail criteria shall be as follows:a) Electrical endurance shall be conducted in accordance with UL 1066 Supplement SA exceptthat the number of operations shall be 1000 for all circuit breaker frame sizes.b) Charging motors shall be used

48、to charge the circuit breaker for all operations. The shunt triprelease and undervoltage trip release devices shall be used to trip the circuit breaker. Thenumber of cycles shall be evenly divided among trip release devices. An “a” auxiliary contactshall be used as the shunt trip cut-off switch.c) T

49、emperature rise of the charging motor, shunt trip, and auxiliary switch shall be measured asapplicable while the accessories/functional components are used to cycle the circuit breaker.Sensors shall be located on the charging motor and shunt trip housing in close proximity to thecoil of the devices and on insulation material nearest to the “a” auxiliary contact. Totaltemperature (assuming 50 C ambient + temperature rise) of accessories/applicable functionalcomponents shall not exceed the temperature rating of the insulating material.d) The mechanical operation