1 Scope
This standard specifies terms and definitions, symbols, models and designations of product, technical requirements, test methods, inspection rules, packaging, marking and storage for continuously transposed conductors.
This standard is applicable to continuously transposed conductors for winding coils, e.g. power transformer, reactor and special transformer.
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 Material—Tensile Test—Part 1: Method of Test at Room Temperature
GB/T 3048.14 Test Methods for Electrical Properties of Electric Cables and Wires—Part 14: DC Voltage Test
GB/T 4074.1 Winding Wires—Test Methods—Part 1: General
GB/T 4074.2 Winding Wires—Test Methods—Part 2: Determination of Dimensions
GB/T 4074.3 Winding Wires—Test Methods—Part 3: Mechanical Properties
GB/T 4074.5 Winding Wires—Test Methods—Part 5: Electrical Properties
GB/T 7095.2 Enameled Rectangular Copper Winding Wires—Part 2: Polyvinyl Acetal Enameled Rectangular Copper Wire Class 120
GB/T 7095.3 Enameled Rectangular Copper Winding Wires—Part 3: Polyester Enameled Rectangular Copper Wire Class 155
GB/T 7095.4 Enameled Rectangular Copper Winding Wires—Part 4: Polyesterimide Enameled Rectangular Copper Wire Class 180
GB/T 7095.6 Enameled Rectangular Copper Winding Wires—Part 6: Polyester or Polyesterimide Overcoated With Polyamide-Imide Enameled Rectangular Copper Wire Class 200
GB/T 7969 Electric Power Cable Paper
GB/T 23310 Aromatic Polyimide Tape Wrapped Rectangular Copper Wire, Class 240
JB/T 9554 Electrical Polyester Non-Woven Fabric
QB/T 4250 500kV Transformer Coil Winding Paper
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
continuously transposed conductors
winding wire consisting of a number of enameled rectangular wires made into two strands with the wide faces mutually contacted, on and below which identically-oriented transposition is made along the narrow sides, and then continuously covered or bound together with electric insulation paper, rope or tape.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Codes, Models and Product Designation
5 Technical Requirements
6 Test Methods
7 Inspection Rules
8 Packaging, Marking and Storage
Annex A (Informative) High-Extension Fiber Paper
Annex B (Informative) Aromatic Polyamide Paper
Annex C (Informative) Test Method for Bending Rigidity of Continuously Transposed Conductor
Annex D (Normative) Test Method for Resistance Unbalance Rate among Trays
