UL 1449 CRD-2014 UL Standard for Safety Surge Protective Devices - Section Paragraph Reference 44 1 7 44 1 7 1 (new) Subject Cheesecloth proximity for conduit openings during Curr.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared and published by Underwriters Laboratories Inc.(UL). It is normative for the a

2、pplicable UL Product Certification Program(s); however, it is currently notpart of the UL Standard(s) referenced below.Product Category (CCN): VZCA2Standard Number: UL 1449Standard Title: Standard for Surge Protective DevicesEdition Date: August 20, 2014Edition Number: 4Section / Paragraph Reference

3、: 1.1, Table 36.1, 79.1Subject: SPD Type 1 or 2CA with only N-G Protection Proposal that No SCCR isRequiredDECISION:1.1 These requirements cover Surge Protective Devices (SPDs) designed for repeated limiting of transientvoltage surges as specified in the standard on 50 or 60 Hz power circuits not ex

4、ceeding 1000 V anddesignated as follows:Type 1 - Permanently connected SPDs intended for installation between the secondary of theservice transformer and the line side of the service equipment overcurrent device, as well asthe load side, including watt-hour meter socket enclosures and Molded Case SP

5、Ds intended tobe installed without an external overcurrent protective device.Type 2 - Permanently connected SPDs intended for installation on the load side of the serviceequipment overcurrent device; including SPDs located at the branch panel and Molded CaseSPDs.Type 3 - Point of utilization SPDs, i

6、nstalled at a minimum conductor length of 10 meters (30feet) from the electrical service panel to the point of utilization, for example cord connected,direct plug-in, receptacle type and SPDs installed at the utilization equipment being protected.See marking in 80.3. The distance (10 meters) is excl

7、usive of conductors provided with or usedto attach SPDs.Type 4 Component Assemblies - Component assembly consisting of one or more Type 5components together with a disconnect (integral or external) or a means of complying with thelimited current tests in 44.4.Type 1, 2, 3 Component Assemblies - Cons

8、ists of a Type 4 component assembly with internalor external short circuit protection. Type 1 and Type 2 Component Assemblies for N-Gapplications only may not be provided with short circuit protection.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION F

9、ROM ULTable 36.1SPD Testing MatrixTest Section Reference SPD TypeType 1 Type 2 Type 3 Type 1, 2, 3ComponentAssembliesTemperature 39 A 2 Port A 2 Port A A 2 PortLeakage Current 37 NA NA A A for Type 3applicationDielectric VoltageWithstand38AAAASurge Test for VPR 40Nominal DischargeCurrent (In)40 A A

10、NAaA for Type 1 or 2applicationsOperating DutyCycle40 NA NA A A for Type 3application oraRepeat Surge Test 40 AAAAOperational voltage 43GroundingContinuity48 A A NA A for Type 1 or 2Current tests atshort circuit currentrating, intermediateand limited shortcircuit current levels44 A A A (No SCCR) A,

11、NA for Type 5SPDs. LimitedCurrent only forType 4 ComponentAssemblies. Shortcircuit, intermediateand limited for Type1, 2, 3 ComponentAssembliesbFault andOvercurrent Testsonly as required byException 2 of11.18 and 11.19 orby 21.3 or 21.4.49,50AAAAWithstand 51 A 2 Port A 2 Port NA A 2 Port, Type 1or 2

12、 applicationInsulationResistance andCapacitorEndurance53,4AAAAComponentBreakdown asrequired by 22.15 AAAAStrain Relief 56 NA NA A Only as applicablePush-back Relief 57 NA NA A Only as applicableConductorSecureness58 A A NA Only as applicableSnap-On Cover 59 A A A Only as applicableNon-MetallicEnclos

13、ure ConduitConnection60 A A NA Only as applicableEnclosure Impact 61 A A A Only as applicableCrushing 62 NA NA A Only as applicableMold Stress-ReliefDistortion63 A A A Only as applicableSTANDARD NUMBER: UL 1449 -2-UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT

14、 PERMISSION FROM ULTable 36.1 ContinuedTest Section Reference SPD TypeType 1 Type 2 Type 3 Type 1, 2, 3ComponentAssembliesMounting HoleBarrier64 A A A Only as applicableAdequacy ofMounting65 NA NA A Only as applicableAccessibility 66 NA NA A Only as applicablePermanence ofCord Tag67 NA NA A Only as

15、applicableA ApplicableNA Non-applicablea) Intest is applicable per exception to 40.8.1.b) Not required for Type 1 and Type 2 Component Assemblies for N-G applications only.79.1 An SPD, including Type 1, 2, 3 Component Assemblies, shall be provided with the following ratings:the operating voltage rat

16、ing (volts), ac power frequency (Hz), and voltage protection ratings (volts orkilovolts) as described in 79.3. For a two-port SPD, the ratings shall include the load current rating(amperes). Type 1 and 2 SPDs shall also be provided with In and MCOV ratings. Type 1 SPDs, Type 2SPDs and Permanently-Co

17、nnected Type 3 (other than receptacle type) SPDs intended to be installed atthe utilization equipment being protected, shall also be provided with a Short Circuit Current Rating(SCCR).Exception: SCCR is not required for Type 1 and Type 2 Component Assemblies for N-G applicationsonly.80.2A Type 1 and

18、 2 Component Assemblies intended only for N-G applications shall be marked “N-GApplications Only “. Alternatively, the wiring terminals may be marked N and G.RATIONALE FOR DECISION:If a complete SPD is evaluated as SPD Type 1 or Type 2, Current Testing is not required across the N-Gmode.If a compone

19、nt is submitted for evaluation as SPD Type 1 or Type 2 Component Assembly (CA), it isrequired to have a SCCR and be submitted to SCCR and Intermediate Current Testing.If an SPD with only N-G protection is submitted, since it would not have a SCCR it cannot be consideredaType1or2CA.To address this un

20、ique case, this proposal allows a N-G only Type SPDs to be evaluated as SPD Type1 or 2CA without a SCCR, but with a distinct marking.Note: Proposal is only applicable for Recognized Components and not for Listed products.Copyright 2014 Underwriters Laboratories Inc.UL, in performing its functions in

21、 accordance with its objectives, does 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 Underwriters Laboratories Inc. inSTANDARD NUMBER: UL 1449 -3-U

22、L COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULpractically applying the requirements of the standard. They do not represent formal interpretations of thestandard under American National Standards Institute (ANSI) processes. UL shall not be res

23、ponsible toanyone for the use of or reliance upon Certification Requirement Decisions by anyone. UL shall not incurany obligation or liability for damages, including consequential damages, arising out of or in connectionwith the use or reliance upon Certification Requirement Decisions. The electronic version of theCertification Requirement 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 1449 -4-