Technical requirements and tests for helical fittings for ADSS
1 Scope
This standard specifies the types, technical conditions and test methods with respect to helical fittings for all-dielectric self-supporting optic fiber cables (ADSS for short).
This standard is applicable to helical fittings such as suspension clamps, strain clamps and protective fittings installed on ADSS helically.
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 (including any amendments) applies.
GB/T 1173 Casting aluminium alloy
GB/T 2314 General technical requirements for electric power fittings
GB/T 2317.4 Test methods for electric power fittings - Part 4: Acceptance inspection for electric power fittings
GB/T 2479 Conventional abrasive - White fused alumina
GB/T 11352 Carbon steel castings for general engineering purpose
GB/T 15115 Die casting aluminium alloys
GB/T 17937 Aluminum-clad steel wires for electrical purposes
GB/T 23308 Aluminum-magnesium-silicon alloy wire for overhead line conductors
DL/T 683 Nomenclature for fittings model
DL/T 763 Technical requirements for overhead line helical fittings
DL/T 768.4 Manufacture quality specification for electric power fittings - Part 4: Spheroidal graphite iron castings
DL/T 1098 Requirements and tests for overhead line spacers
DL/T 1099 Technical requirements and tests for damper
YB/T 4222 Coated steel wire for overhead line helical fittings
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Model and designation
5 Structural types
6 Technical conditions
7 Test methods
8 Inspection rules
9 Identification, packaging, transportation and storage
Annex A (Normative) Aeolian vibration fatigue test
Annex B (Normative) Galloping fatigue test
