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ASTM A925-03(2009)e1
Standard Specification for Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Overhead Ground Wire Strand
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Разработчик:
Зарубежные/ASTM
ICS:
29.240.20 Power transmission and distribution lines / Линии электропередачи и распределительные линии
Сборник (ASTM):
01.06 Coated Steel Products / Изделия из облицовочной стали
Тематика:
Steel--Structural, Tubes, Plate, Coated
Описание
Реферат

This guide covers standard specification for high-strength, extra-high-strength, and utilities grades of concentric lay steel wire strand composed of three wires or seven wires with Class A, Class B, or Class C zinc aluminum-mischmetal (Zn-5 Al-MM) alloy coatings specifically intended for use as overhead ground wires or static wires for electric power transmission lines. Alloy-coated steel wires, of varying sizes and grades of strand, shall conform to the specified values of the approximate weight per unit length of strand and the minimum breaking strength of the finished strand. The weight of the three classes of coating shall not be less than the specified value. The steel wires shall meet the required mechanical properties such as breaking strength, elongation, and ductility.

Область применения

1.1 This specification covers high-strength,extra-high-strength, and utilities grades of concentric lay steelwire strand composed of three wires or seven wires with Class A,Class B, or Class C zinc-5 % aluminum-mischmetal (Zn-5 Al-MM) alloycoatings specifically intended for use as overhead ground wires orstatic wires for electric power transmission lines.

1.2 The values stated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.

Ключевые слова:
coated overhead strand; zinc 5 % aluminum-mischmetal alloy-coated overhead strand; Mischmetal alloy-coated steel wire--specifications; Overhead strand--specifications; Steel wire strand--specifications; Zinc-coated steel wire--specifications;