1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared by UL LLC. It is normative for the applicable ULProduct Certification Program(
2、s); however, it is currently not part of the UL Standard(s) referencedbelow.Product Category (CCN): ECBT2Standard Number: UL 1977Standard Title: Standard for Component Connectors for Use in Data, Signal, Controland Power ApplicationsEdition Date: January 7, 2016Edition Number: 3Section / Paragraph R
3、eference: 1.2, 10.2.1, 11.2, Figure 1.1, Tables 11.1 and 12.1Subject: Connectors rated for 1000 VoltDECISION:1.2 These requirements apply to devices categorized as follows (See Figure 1.1):a) Type 0 rated less than 8.3 A and less than 30 V rms (42 V peak);b) Type 1A rated less than 8.3 A and from 30
4、 V up to and including 600 V ac or dc, or both;c) Type 1B rated from 8.3 A up to and including 200 A, and less than 30 V rms (42 V peak);d) Type 2 rated from 8.3 A to less than 31 A and from 30 V up to and including 600 V ac or dcor both;e) Type 3 rated from 31 A up to and including 200 A and from 3
5、0 V up to and including 600 Vac or dc, or both;f) Type 3A rated from 31 A up to and including 200 A and from 601 V up to and including 1000V ac or dc, or both;g) Type 4 rated from greater than 200 A up to and including 1000 A, and up to and including600Vacordc;h) Type 4A rated greater than 200 A up
6、to and including 1000 A, and from 601 V up to andincluding 1000 V ac or dc.i) Type 5 rated less than 31 A and from 601 V up to and including 6000 V ac or dc, or both.Type designations used in this Standard only serve as a guide to determine appropriate requirements, anddo not represent an assigned r
7、ating. A device without an assigned current rating is considered to be eithera Type 0 or Type 1A depending upon the assigned voltage rating.This is generated text for figtxt.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL10.2 Accessibility of
8、 live parts10.2.1 A connector of Types 1A, 2, 3, 3A, 4 or 4A intended for usage external to the end equipment shallhave live parts protected against exposure to contact by persons when assembled, installed and matedas intended, as determined by the use of the probe shown in Figure 10.1.10.2.2 Mating
9、 devices of Types 1A, 2, 3, 3A, 4 or 4A intended for usage external to the end equipmentshall not have exposed live contacts during engagement or withdrawal as determined by the use of theprobe shown in Figure 10.1.11 Spacings11.1 For devices as specified in Table 11.1 there shall be a minimum spaci
10、ng through air and over surfaceof 1.2 mm (3/64 inch) for a device rated 250 volts or less, and a minimum of 3.2 mm (1/8 inch) for a devicerated more than 250 volts, between an uninsulated live part and:a) An uninsulated live part of opposite polarity;b) An uninsulated grounded metal part; orc) A non
11、-current carrying metal part that is exposed to contact by persons when the device isinstalled and used in the intended manner.Exception: Spacings less than those specified are permitted if the device complies with the requirementsin the Dielectric Voltage-Withstand Test, Section 17.Figure 1.1Connec
12、tor type designationsSTANDARD NUMBER: UL 1977 -2-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 11.1Applicability of spacing requirementsTypeUninsulated live part uninsulated live part ofopposite polarityUninsulated live part uninsulate
13、d groundedmetal partUninsulated live part exposed dead metal part0 NoNoNo1A Yes Yes Yes1B Yes Yes No2 Yes Yes Yes3 Yes Yes Yes3A Yes Yes Yes4 Yes Yes Yes4A Yes Yes Yes5 Yes Yes Yes11.2 Spacings on a Type 3A, 4A and 5 devices shall meet the minimum required values for the intendedend-use application.
14、Table 12.1Connector test programsConnector TypeType Type Type Type Type Type Type Type TypeTest Section 0 1A 1B 2 3 3A 44A5Acelratedagin13OOOOOOOOOMold stress reliefa4XXXXXXXXXOverloadb15OOOONNNNTemperatureb6YYXXXXXXXDielectric voltage-withstandb17XXXXX XResistance toarcingb,c18OOOONNNNConductorsecu
15、reness19OOOOOOOOOFlammability 20 OA OA OA OA OA OA OA OA OAGroundingimpedance21OOOOOOOOOX RequiredY Required if device has an assigned current rating.O Optional for some devices. Refer to test description for details.OA Optional for all devices.N Not permitted.aSee the Exception to 14.1.bFor female
16、devices intended for current interruption the overload, temperature, dielectric voltage-withstand and resistance toarcing tests shall be performed in sequence using the same test specimens.cThe resistance to arcing test may be performed on a separate set of specimens. See 18.2.17.3 The test potentia
17、l shall be the following values based on the device having an ac rating and the useof ac test equipment. See Table 17.1 for alternative combinations of device rating (ac or dc) and testpotential (ac or dc).a) 500 volts for a Type 1B device;STANDARD NUMBER: UL 1977 -3-UL COPYRIGHTED MATERIAL NOT AUTH
18、ORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULb) 1000 volts plus twice rated voltage for Types 1A, 2, 3, 3A, 4 and 4A devices;RATIONALE FOR DECISION:Voltage applications greater than 600 volts are becoming more commonplace, and accepted in theNational Electrical Code. The
19、NEC was revised in 2014 to raise the long-accepted threshold of 600 V to1000 V. This proposal would address a connector rated 1000 volts when used in or with electricalequipment that is rated 1000 volts.Copyright 2017 UL LLCUL LLC, in performing its functions in accordance with its objectives, does
20、not guarantee or warrant thecorrectness of Certification Requirement Decisions it may issue or that they will be recognized or adoptedby anyone. Certification Requirement Decisions are the opinion of UL LLC. in practically applying therequirements of the standard. They do not represent formal interp
21、retations of the standard underAmerican National Standards Institute (ANSI) processes. UL LLC shall not be responsible to anyone forthe use of or reliance upon Certification Requirement Decisions by anyone. UL LLC shall not incur anyobligation or liability for damages, including consequential damage
22、s, arising out of or in connection withthe use or reliance upon Certification Requirement Decisions. The electronic version of the CertificationRequirement Decision is the current version and previously printed copies may be outdated.This document is published as a service to ULs certification customersSTANDARD NUMBER: UL 1977 -4-
