ASTM-D4566 2008

$58.50

D4566-08 Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable

Published By	Publication Date	Number of Pages
ASTM	2008	29

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Categories: 29.035.01 - Insulating materials in general, ASTM

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Description

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:

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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Scope Significance and Use Spark Test
3	Insulation Defect or Fault Rate—In-Process DC Proof Test—In-Process Scope Significance and Use Conductor Continuity
4	Continuity of Other Metallic Cable Elements Conductor Resistance (CR) Resistance of Other Metallic Cable Elements Conductor Resistance Unbalance (CRU of Pairs)
5	Mutual Conductance Coaxial Capacitance (Capacitance to Water) Mutual Capacitance (CM)
6	Capacitance Deviation FIG. 1
7	Capacitance Difference (Filled Core only) Capacitance Unbalance—Pair-to-Pair (CUPP) Capacitance Unbalance—Pair-to-Ground (CUPG) FIG. 2
8	Capacitance Unbalance—Pair-to-Support Wire Attenuation FIG. 3
9	FIG. 4 FIG. 5
10	Crosstalk Loss—Near End
11	Attenuation to Crosstalk Ratio, Near-End (ACR-N) Crosstalk Loss—Far End
12	Attenuation to Crosstalk Ratio, Far-End (ACR-F)
13	Effects of Elevated Temperature on Attenuation
14	Effects of Humidity on Attenuation Effects of Aging on Attenuation
15	Insulation Resistance (IR) Fault Rate (Air Core Only) Shorts Test (Between Wires of a Pair) Crosses Test (Between Wires of Different Pairs)
16	Jacket Voltage Breakdown Rating Test DC Proof Test—Wire-to-Wire DC Proof Test—Core-to-Shield DC Proof Test—Core-to-Support Wire
17	DC Proof Test—Core-to-Internal Shield (Screen) DC Proof Test—Internal Shield (Screen)-to-Shield DC Proof Test—Other Required Isolations Voltage Surge Test Phase Constant
18	Phase Delay FIG. 6
19	Phase Velocity Characteristic Impedance—Method 1
20	Characteristic Impedance—Method 2 Single Ended Measurements
21	Characteristic Impedance—Method 3
23	Structural Return Loss (SRL) and Return Loss (RL) Unbalance Attenuation (Mode Conversion Losses)
24	FIG. 7
25	FIG. 8 FIG. 9
26	Report Keywords FIG. 10
27	A1. CALIBRATION PROCEDURE FOR CHARACTERISTIC IMPEDANCE AND SRL DATA ACQUISITION A1.1 S-Parameter Calibration of Network Analyzer when Internal Calibration is not available A2. UNBALANCE ATTENUATION A2.1 General A2.2 Unbalance Attenuation Near End and Far End TABLE A2.1 TABLE A2.2
28	TABLE A2.3 FIG. A2.1
29	FIG. A2.2

Additional information

Voltage surge test	43
DC proof test	8
Capacitance deviation	19
Coaxial capacitance (capacitance to water)	17
Attenuation	24
Crosstalk loss, near-end	25
Phase Delay	45
Attenuation, effects due to elevated temperature	29
Attenuation to crosstalk ratio far end (ACR-F)	28
Conductor resistance (CR)	13
Electrical Tests of Insulation In-Process	4-8
Continuity of other metallic elements	12
Mutual conductance	16
Phase Constant	44
Shorts test (continuity between wires of a pair)	34
Conductor resistance unbalance (CRU of pairs)	15
Capacitance unbalance, Pair-to-support wire	23
Structural Return Loss and Return Loss	50
DC proof test, Core-to-shield	38
Mutual capacitance (CM)	18
Spark test	6
Capacitance unbalance, Pair-to-ground (CUPG)	22
Jacket voltage breakdown rating test	36
DC proof test, Internal shield (screen)-to-shield	41
DC proof test, Wire-to-wire	37
Capacitance unbalance, Pair-to-pair (CUPP)	21
Attenuation, effects due to aging	31
DC proof test, Core-to-internal shield (screen)	40
Resistance of other metallic cable elements	14
Crosses test (continuity between wires of different pairs)	35
Electrical Tests of Completed Wire and Cable	9-51
Conductor continuity	11
Unbalance attenuation (conversion losses)	51
Fault rate test (air core only)	33
Crosstalk loss, far-end	27
Insulation resistance (IR)	32
Attenuation to crosstalk ratio near end (ACR-N)	26
Characteristic Impedance Method 2, Single-ended measurements	48
DC proof test, Core-to-support wire	39
Insulation defect or fault rate	7
Phase Velocity	46
Attenuation, effects due to humidity	30
DC proof test, Other required isolations	42
Characteristic Impedance Method 1 Propagation constant and capacitance	47
Characteristic Impedance Method 3 Least Squares Function Fit	49
ICS Codes	29.035.01 - Insulating materials in general
Capacitance difference	20

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