This specification covers five grades of zinc-coated, steel wire strand, composed of a number of round, steel wires, with four weights of zinc coatings, suitable for use as guys, messengers, span wires, and for similar purposes.
The five grades covered are as follows:
Utilities,
Common,
Siemens-Martin,
High-Strength, and
Extra High-Strength.
Minimum breaking strengths of strand for each grade are described in Section 7.
The four weights of zinc coatings are: Class 1 and Classes A, B, and C. Minimum weights of zinc coatings are described in Section 10.
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 standar