前言:这是针对热固性绝缘电线和电缆的统一NCE、CSA集团和UL标准。这是NMX-J-451-ANCE的第六版，CSA C22的第十一版。第38号和UL 44第19版。本版本的NMX-J-451-ANCE取代了2014年3月28日发布的前一版本。本版CSA C22。2第38号取代2014年3月28日出版的前一版。本版UL 44取代2014年3月28日出版的前一版。这一协调标准已于2021年5月14日联合修订。为此，CSA集团和UL将于2021年5月14日发布修订版，并于2021年5月14日发布新版。本标准的制定符合加拿大标准委员会对加拿大国家标准的要求。 CSA集团已将其作为加拿大国家标准发布。范围:1.1本标准规定了额定电压为600 V、1000 V、2000 V和5000 V的单导体和多导体热固性绝缘电线和电缆的要求，这些电线和电缆的使用符合加拿大电气规范第一部分CSA C22的规定。1，加拿大，墨西哥的电气安装标准NOM-001-SEDE，以及美国的国家电气规范（NEC），NFPA 70。本标准所涵盖的类型和额定电压的完整列表及其预期的具体电气规范见附录A，这些类型的施工和试验要求汇总见附录B。1.2表1概述了本标准适用类型的最高导体温度、额定电压和绝缘导体数量。 1.3本标准还规定了第7节深井潜水泵电缆中潜水泵电缆（带或不带护套）的要求。这些电缆没有指定类型字母名称。1.4本标准中的产品可能具有1.1中所列电气规范未涵盖的应用。

Preface:This is the harmonized ANCE, CSA Group, and UL standard for Thermoset-Insulated Wires and Cable s. It is the Sixth edition of NMX-J-451-ANCE, the Eleventh edition of CSA C22.2 No. 38, and the Nineteenth edition of UL 44. This edition of NMX-J-451-ANCE supersedes the previous edition published in March 28, 2014. This edition of CSA C22.2 No. 38 supersedes the previous edition published in March 28, 2014. This edition of UL 44 supersedes the previous edition published in March 28, 2014.This harmonized standard has been jointly revised on May 14, 2021. For this purpose, CSA Group and UL are issuing revision pages dated May 14, 2021, and ANCE is issuing a new edition dated May 14, 2021.This standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.Scope:1.1This Standard specifies the requirements for single-conductor and multiple-conductor thermoset-insulated wires and cables rated 600 V, 1000 V, 2000 V, and 5000 V, for use in accordance with the rules of theCanadian Electrical Code, Part I, CSA C22.1, in Canada,Standard for Electrical Installations, NOM-001-SEDE, in Mexico, and theNational Electrical Code (NEC), NFPA 70, in the United States of America. See Annex A for the complete list of types and voltage ratings covered by this Standard and the specific electrical codes for which they are intended, and Annex B for a summary of construction and test requirements for these types.1.2Table 1 provides a summary of the maximum conductor temperature, voltage ratings, and the number of insulated conductors for the types to which this Standard applies.1.3This Standard also specifies the requirements for submersible pump cables, with or without jackets, in Deep Well Submersible Water-Pump Cable, Section 7. No type-letter designations are assigned to these cables. 1.4 Products within this Standard might have applications not covered by the electrical codes listed in 1.1.