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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:

Test Method Sections
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-pair (CUPP) 21
Capacitance unbalance, Pair-to-support wire 23
Characteristic ImpedanceMethod 1 Propagation constant
and capacitance
47
Characteristic ImpedanceMethod 2, Single-ended
measurements
48
Characteristic ImpedanceMethod 3 Least Squares Function Fit 49
Coaxial capacitance (capacitance to water) 17
Conductor continuity 11
Conductor resistance (CR) 13
Conductor resistance unbalance (CRU of pairs) 15
Continuity of other metallic elements 12
Crosses test (continuity between wires of different pairs) 35
Crosstalk loss, far-end 27
Crosstalk loss, near-end 25
DC proof test, Core-to-internal shield (screen) 40
DC proof test, Core-to-shield 38
DC proof test, Core-to-support wire 39
DC proof test, Internal shield (screen)-to-shield 41
DC proof test, Other required isolations 42
DC proof test, Wire-to-wire 37
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.

4.1 In-process electrical tests are used primarily as process control tools in an attempt to minimize the number and magnitude of problems detected at final test of completed cable.

9.1 Electrical tests of completed wire and cable may include verification of some or all of the properties in accordance with Sections 11 through 51.

Product Details

Published:
11/01/2008
Number of Pages:
29
File Size:
1 file , 380 KB
Redline File Size:
2 files , 760 KB