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    • Industrial Products (Hazloc, Energy and Power Equipment and Machinery) - Canadia
    • CAN/CSA-C22.2 NO. 60947-7-2:17

    Codes & Standards - Purchase

    CAN/CSA-C22.2 NO. 60947-7-2:17

    Low-voltage switchgear and controlgear — Part 7-2: Ancillary equipment — Protective conductor terminal blocks for copper conductors (Trinational standard with NMX-J-538/7-2-ANCE and UL 60947-7-2)
    SKU: 2423901_2425224 Published by CSA Group Publication Year 2017 43 pages

    Product Details

    • Preface/Scope

    Preface


    This is the harmonized ANCE, CSA Group, and UL standard for Low-Voltage Switchgear and Controlgear – Part 7-2: Ancillary Equipment – Protective Conductor Terminal Blocks for Copper Conductors. It is the first edition of NMX-J-538/7-2-ANCE, the first edition of CAN/CSA No. 60947-7-2, and the fourth edition of UL 60947-7-2. This edition of UL 60947-7-2 supersedes the previous edition(s) published on May 6, 2011.


    This harmonized standard is based on IEC Publication 60947-7-2: Edition 2 (2002), Low-voltage switchgear and controlgear – Part 7-2: Ancillary equipment – Protective conductor terminal blocks for copper conductors. IEC 60947-7-2 is copyrighted by the IEC.


    Scope


    This part of IEC 60947 specifies requirements for protective conductor terminal blocks with PE function up to 120 mm2 (250 kcmil) and for protective conductor terminal blocks with PEN function equal to and above 10 mm2 (AWG 8) with screw-type or screwless-type clamping units, primarily intended for industrial applications.


    NOTE: AWG is the abbreviation of American Wire Gage [Gage (US) = Gauge (UK)]


    kcmil = 1000 cmil


    1 cmil = 1 circular mil = surface of a circle having a diameter of 1 mil


    1 mil = 1/1000 inch


    Protective conductor terminal blocks are used to form the electrical and mechanical connection between copper conductors and the fixing support.


    lt is applicable to protective conductor terminal blocks for the connection of round copper conductors with or without special preparation having a cross-section between 0,2 mm2 and 120 mm2 (AWG 24 and 250 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V a.c. up to 1 000 Hz or 1 500 V d.c., most commonly in conjunction with terminal blocks according to IEC 60947-7-1.


    1.1DV.1 D2 Modification of Clause 1.1:


    Replace 0,2 mm2 and 120 mm2 (AWG 24 and 250 kcmil) with 0,1 mm2 and 120 mm2 (AWG 30 and 250 kcmil).


    1.1DV.2 D2 Modification by adding the following:


    This standard applies to insulation displacement terminals.


    1.1DV.3 DR Modification by adding the following:


    Terminal blocks with PEN function are not permitted.


    This standard may be used as guide for


    – protective conductor terminal blocks requiring the fixing of special devices to the conductors, for example quick connect terminations or wrapped connections, etc.;


    – protective conductor terminal blocks providing direct contact to the conductors by means of edges or points penetrating the insulation, for example insulation displacement connections, etc.


    Where applicable in this standard, the term clamping unit has been used instead of the term terminal. This is taken into account in case of reference to IEC 60947-1.


    1.1DV.4 D2 Modification by adding the following:


    This standard also applies to terminal blocks that have insulation piercing or displacement clamping units.


    1.1DV.5 D2 Modification by adding the following:


    This standard specifies requirements for protective conductor terminal blocks with PE function up to 120 mm2 (250 kcmil) and for protective conductor terminal blocks with PEN function equal to and above 10 mm2 (AWG 8) with screw-type or screwless-type clamping units, primarily intended for industrial applications, in accordance with Annex DVB of item 1 in Annex DVA, National Electrical Code, NFPA 70 (for use in the USA), CSA C22.1-15 Canadian Electrical Code, Part I (for use in Canada), or NOM- 001-SEDE, Electrical Installations (Utility) [for use in Mexico].

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