5.1 Physical tests, properly interpreted, provide information with regard to the physical properties of the insulation or jacket. The physical test values give an approximation of how the insulation will physically perform in its service life. Physical tests provide useful data for research and development, engineering design, quality control, and acceptance or rejection under specifications.
Область применения1.1 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 Tests
Capacitance and Dissipation Factor Tests
Cold Bend
Cold Bend, Long-Time Voltage Test on Short Specimens
Double AC Voltage Test on Short Specimens
Electrical Tests of Insulation
Heat Distortion Test
Horizontal Flame Test
Insulation Resistance Tests on Completed Cable
Mineral Filler Content, Determination of
Ozone Resistance Test
Partial-Discharge Test
Physical Tests of Insulation and Jacket Compounds
Surface Resistivity Test
Track Resistance Test
U-Bend Discharge Test
Water Absorption Test
Water Absorption Test, Accelerated
Water Absorption Test on Fibrous Coverings
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.