ASTM D2656-06

    Standard Specification for Crosslinked Polyethylene Insulation for Wire and Cable Rated 2001 to 35 000 V

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    1. Scope

    1.1 This specification covers a crosslinked polyethylene insulation for electrical wires and cables for conductor sizes 8 AWG (8.37 mm2) and larger. The base polymer of this insulation consists substantially of polyethylene.

    1.2 This type of insulation is suitable for use on power cables in wet and dry locations at conductor temperatures not exceeding 90°C for continuous operation, 130°C for emergency overload conditions, and 250°C for short-circuit conditions. It is considered suitable for all sizes and voltage classifications of single- and multiple-conductor power cables at voltage ratings of 2001 to 35000 V phase-to-phase at the 100 % insulation level and at voltage ratings of 2001 to 25000 V at the 133 % insulation level as listed in Table 1C of Test Methods D 470.

    1.3 Materials covered by this specification are not sunlight- and weather-resistant unless they are carbon black pigmented or contain an additive system designed for this protection.

    1.4 In many instances the insulation cannot be tested unless it has been formed around a conductor. Therefore, tests are done on insulated wire in this standard solely to determine the relevant property of the insulation and not to test the conductor or completed cable.

    1.5 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those in parentheses are for information only.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D470 Test Methods for Crosslinked Insulations and Jackets for Wire and Cable

    D1248 Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable

    D1711 Terminology Relating to Electrical Insulation

    D2765 Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics

    ICEA Standard

    ICEA T-28-562 Test Method for Measurement of Hot Creep of Polymeric Insulation Available from The Insulated Cable Engineers Association, Inc. (ICEA), P.O. Box 1568, Carrollton, GA 30112,

    ICS Code

    ICS Number Code 29.035.20 (Plastic and rubber insulating materials)

    UNSPSC Code

    UNSPSC Code 26121500(Electrical wire); 26121600(Electrical cable and accessories)

    Referencing This Standard
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    DOI: 10.1520/D2656-06

    Citation Format

    ASTM D2656-06, Standard Specification for Crosslinked Polyethylene Insulation for Wire and Cable Rated 2001 to 35 000 V, ASTM International, West Conshohocken, PA, 2006,

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