1.1本规范涵盖五个等级的铝涂层钢丝绞线，由许多圆形钢丝组成，带有铝涂层，用作拉线、信使、跨线和类似用途。 1.2涵盖的五个等级如下: 1.2.1公用设施， 1.2.2通用， 1.2.3西门子马丁公司， 1.2.4高强度，以及 1.2.5超高强度。 1.3表1规定了各等级钢绞线的最小断裂强度。 1.4以英寸-磅为单位的数值应视为标准值。

1.1 This specification covers five grades of aluminum-coated, steel wire strand, composed of a number of round, steel wires, with aluminum coatings, for use as guys, messengers, span wires, and for similar purposes. 1.2 The five grades covered are as follows: 1.2.1 Utilities, 1.2.2 Common, 1.2.3 Siemens-Martin, 1.2.4 High-Strength, and 1.2.5 Extra High-Strength. 1.3 Minimum breaking strengths of strand for each grade are specified in Table 1. 1.4 The values stated in inch-pound units are to be regarded as the standard.