1 Scope
This standard specifies the order information, classification and designation, dimension, shape and reference weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of carbon steel wire strands for optical fiber cable tension members.
This standard is applicable to galvanized and phosphatized carbon steel wire strands (hereinafter referred to as steel wire strands) for purposes such as reinforced cores for optical cables and self-supporting optical fiber cable.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature
GB/T 238 Metallic materials—Wire—Reverse bend test
GB/T 239 Metallic materials wire torsion test
GB/T 1839 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products
GB/T 2104 Steel wire ropes—Packing, marking and certificate—General requirements
GB/T 2976 Metallic materials—Wire—Wrapping test
GB/T 4354 Hot rolled quality carbon steel wire rods
GB/T 8358 Methods of breaking tensile test for steel wire ropes
GB/T 9792 Conversion coatings on metallic materials—Determination of coating mass per unit area—Gravimetric methods
GB/T 24191 Steel wire ropes—Determination of the actual modulus of elasticity
3 Classification and designation
3.1 Steel strand is classified into A-type and B-type steel wire strands according to the surface state.
A-type steel wire strand: common zinc coating and phosphating steel wire strand;
B-type steel wire strand: steel wire strand with thick zinc coating.
3.2 The structure of the steel wire strand is 1×7, as shown in Table 1.
Foreword i
1 Scope
2 Normative references
3 Classification and designation
4 Order information
5 Dimension, shape and reference weight
6 Technical requirements
7 Test methods
8 Inspection rules
9 Packaging, marking, transportation, storage and quality certificate
Annex A (Informative) I-wheel for winding carbon steel wire strands for optical fiber cable tension members
