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): AVLV2Standard Number: UL 758Standard Title: Standard for Appliance Wiring MaterialEdition Date: May 2, 2014Edition Number: 3Section / Paragraph Reference: Table 5.3Subject:DECISION:Table 5.3Conductor
3、 metal specificationsConductor metal ASTM reference for themetalTemperature limit for themetal, C (F)Other limitsNickel, Nickel alloy ANSI/ASTM B 160 or B 473,or per the requirements in theother limits column550 (1022) Minimum tensile strength45,000 psi or 31.6 kgf/mm2elongation at least 10 percent
4、nominal volume resistivity 45ohm circular mil/foot at 20C(68F)Remainder of table deleted for brevityRATIONALE FOR DECISION:ASTM B160 covers Nickel conductors (min 99% nickel), whereas ASTM B 473 covers Nickel alloyconductors (33 40% nickel). This revision clarifies that nickel conductors are accept
5、able for use in AWMconstructions.Copyright 2016 UL LLCUL LLC, in performing its functions in 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
6、 Decisions are the opinion of UL LLC. in practically applying therequirements of the standard. They do not represent formal interpretations of the standard underAmerican National Standards Institute (ANSI) processes. UL LLC shall not be responsible to anyone forthe use of or reliance upon Certificat
7、ion Requirement Decisions by anyone. UL LLC shall not incur anyobligation or liability for damages, including consequential damages, 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electronic version of the CertificationRequirement Decision is the current version and previously printed copies may be outdated.This document is published as a service to ULs certification customersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSTANDARD NUMBER: UL 758 -2-No Text on This Page
