ASTM D470-2013

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ASTM D470-13是關(guān)于《電線和電纜用交聯(lián)絕緣材料與套管的標(biāo)準(zhǔn)試驗(yàn)方法 》現(xiàn)行版本標(biāo)準(zhǔn)修訂于2013年，替代原ASTM D470-99版本使用。

1. Scope

1.1 These test methods cover procedures for testing crosslinked insulations and jackets for wire and cable. To determine the test to be made on the particular insulation or jacket, refer to the product specification for that type. These test methods do not apply to the class of products known as flexible cords.

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

1.3 The procedures appear in the following sections:

Sections

AC and DC Voltage Withstand Tests22 to 29

Capacitance and Dissipation Factor Tests38 to 44

Cold Bend128

Cold Bend, Long-Time Voltage Test on Short Specimens51 to 57

Double AC Voltage Test on Short Specimens 45 to 50

Electrical Tests of Insulation17 to 64

Heat Distortion Test127

Horizontal Flame Test100 to 104

Insulation Resistance Tests on Completed Cable30 to 37

Mineral Filler Content, Determination of111 to 115

Ozone Resistance Test87 to 99

Partial-Discharge Test58 to 64

Physical Tests of Insulation and Jacket Compounds 5 to 16

Surface Resistivity Test116 to 120

Track Resistance Test129 to 132

-Bend Discharge Test121 to 125

Water Absorption Test65 to 71

Water Absorption Test, Accelerated72 to 86

Water Absorption Test on Fibrous Coverings 105 to 110

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

1.5 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazards see Section 4.

2. Referenced Documents

ASTM Standards

D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

D257 Test Methods for DC Resistance or Conductance of Insulating Materials

D412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTension

D454 Test Method for Rubber Deterioration by Heat and Air Pressure

D572 Test Method for RubberDeterioration by Heat and Oxygen

D573 Test Method for RubberDeterioration in an Air Oven

D1193 Specification for Reagent Water

D1711 Terminology Relating to Electrical Insulation

D2132 Test Method for Dust-and-Fog Tracking and Erosion Resistance of Electrical Insulating Materials

D3755 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials nder Direct-Voltage Stress

D5025 Specification for Laboratory Burner sed for Small-Scale Burning Tests on Plastic Materials

D5207 Practice for Confirmation of 20-mm (50-W) and 125-mm (500-W) Test Flames for Small-Scale Burning Tests on Plastic Materials

D5423 Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation