ASTM D4566-08e1

1.1 These test methods cover procedures for electrical testing of thermoplastic insulations and jackets used on telecommunications wire and cable and for the testing of electrical characteristics of completed products. To determine the procedure to be used on the particular insulation or jacket compound, or on the end product, reference should be made to the specification for the product.

1.2 The test methods appear in the following sections of this standard:

Electrical Tests of InsulationIn-Process- 4-8

DC proof test- 8

Insulation defect or fault rate- 7

Spark test- 6

Electrical Tests of Completed Wire and Cable- 9-51

Attenuation- 24

Attenuation, effects due to aging- 31

Attenuation, effects due to elevated temperature- 29

Attenuation, effects due to humidity- 30

Attenuation to crosstalk ratiofar end (ACR-F)- 28

Attenuation to crosstalk rationear end (ACR-N)- 26

Capacitance deviation- 19

Capacitance difference- 20

Capacitance unbalance, Pair-to-ground (CUPG)- 22

Capacitance unbalance, Pair-to-pan="top"> Fault rate test (air core only)- 33

Insulation resistance (IR)- 32

Jacket voltage breakdown rating test- 36

Mutual capacitance (CM)- 18

Mutual conductance- 16

Phase Constant- 44

Phase Delay- 45

Phase Velocity- 46

Resistance of other metallic cable elements- 14

Shorts test (continuity between wires of a pair)- 34

Structural Return Loss and Return Loss 50 Unbalance attenuation (conversion losses)- 51

Voltage surge test- 43

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, 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. Specific hazard statements are given in Sections 6 and 37.