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Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable
Přeložit název
NORMA vydána dne 1.10.2020
Označení normy: ASTM D4566-20
Datum vydání normy: 1.10.2020
Kód zboží: NS-1009564
Počet stran: 30
Přibližná hmotnost: 90 g (0.20 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
aging, attenuation, attenuation to crosstalk ratio far-end, attenuation to crosstalk ratio near-end, capacitance deviation, capacitance difference, capacitance unbalance pair-to-ground, capacitance unbalance pair-to-pair, capacitance unbalance pair-to-support wire, characteristic impedance, coaxial capacitance, conductor resistance, conductor resistance unbalance, continuity, conversion loss, crosses, crosstalk loss´far end, crosstalk loss´near end, dc proof test, equal level far-end crosstalk
Significance and Use | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
6.1 Electrical tests, properly interpreted, provide information with regard to the electrical properties of the insulation. The electrical test values give an indication as to how the insulation will perform under conditions similar to those observed in the tests. Electrical tests provide data for research and development, engineering design, quality control, and acceptance or rejection under specifications. |
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1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 These 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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