Coated steel wire for overhead line helical fittings
1 Scope
This standard specifies the classification and designation, order contents, technical requirements, inspection methods, inspection rules, rounding off and judgment of numerical value, packaging, marking and quality certificate of coated steel wire for overhead line helical fittings (hereinafter referred to as “steel wire”).
This standard is applicable to the coated steel wire for overhead line helical fittings such as overhead line helical suspension clamps, overhead line helical strain clamps and overhead line helical connecting strips.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 239.1 Metallic materials - Wire - Part 1: Simple torsion test
GB/T 470 Zinc ingots
GB/T 1839 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products
GB/T 2103 General provisions for checking, packing, marking and quality certification of steel wire
GB/T 2976 Metallic materials - Wire - Wrapping test
GB/T 4354 Hot rolled quality carbon steel wire rods
GB/T 12689.1 Methods for chemical analysis of zinc and zinc alloys - Part 1: Determination of aluminum content - Chromazurol S polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry
YB/T 081 Rule for rounding off of numberical values and judgment of testing values for technical standards of metallurgy
DL/T 763 Technical requirements for overhead line helical fittings
DL/T 766 Technical requirements and testing method of helical fittings for OPGW
DL/T 767 Technical requirements and testing method of helical fittings for ADSS
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
5 Order contents
6 Technical requirements
7 Inspection methods
8 Inspection rules
9 Rounding off and judgment of numerical value
10 Packaging, marking and quality certificate
Annex A (Normative) Determination of aluminum content in steel wire coating
Coated steel wire for overhead line helical fittings
1 Scope
This standard specifies the classification and designation, order contents, technical requirements, inspection methods, inspection rules, rounding off and judgment of numerical value, packaging, marking and quality certificate of coated steel wire for overhead line helical fittings (hereinafter referred to as “steel wire”).
This standard is applicable to the coated steel wire for overhead line helical fittings such as overhead line helical suspension clamps, overhead line helical strain clamps and overhead line helical connecting strips.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 239.1 Metallic materials - Wire - Part 1: Simple torsion test
GB/T 470 Zinc ingots
GB/T 1839 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products
GB/T 2103 General provisions for checking, packing, marking and quality certification of steel wire
GB/T 2976 Metallic materials - Wire - Wrapping test
GB/T 4354 Hot rolled quality carbon steel wire rods
GB/T 12689.1 Methods for chemical analysis of zinc and zinc alloys - Part 1: Determination of aluminum content - Chromazurol S polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry
YB/T 081 Rule for rounding off of numberical values and judgment of testing values for technical standards of metallurgy
DL/T 763 Technical requirements for overhead line helical fittings
DL/T 766 Technical requirements and testing method of helical fittings for OPGW
DL/T 767 Technical requirements and testing method of helical fittings for ADSS
Contents of YB/T 4222-2018
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
5 Order contents
6 Technical requirements
7 Inspection methods
8 Inspection rules
9 Rounding off and judgment of numerical value
10 Packaging, marking and quality certificate
Annex A (Normative) Determination of aluminum content in steel wire coating
