1 Scope
This part of JB/T 8734 specifies the terms and definitions, code, general requirements for cable structure, finished cable test, delivery length, acceptance rules, marking and packaging for polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V.
This part is applicable to polyvinyl chloride insulated cables and wires and cords of copper and aluminium conductors used for power unit of rated voltage up to and including 450/750V.
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 2900.10-2013 Electrotechnical Terminology—Electric Cables
GB/T 2951.11-2008 Common Test Methods for Insulating and Sheathing Materials of Electric and Optical Cables—Part 11: Methods for General Application—Measurement of Thickness and Overall Dimensions—Tests for Determining the Mechanical Properties
GB/T 2951.12-2008 Common Test Methods for Insulating and Sheathing Materials of Electric and Optical Cables—Part 12: Methods for General Application—Thermal Ageing Methods
GB/T 2951.14-2008 Common Test Methods for Insulating and Sheathing Materials of Electric and Optical Cables—Part 14: Methods for General Application—Test at Low Temperature
GB/T 2951.31-2008 Common Test Methods for Insulating and Sheathing Materials of Electric and Optical Cables—Part 31: Methods Specific to PVC Compounds—Pressure Test at High Temperature—Test for Resistance to Cracking
GB/T 2951.32-2008 Common Test Methods for Insulating and Sheathing Materials of Electric and Optical Cables—Part 32: Methods Specific to PVC Compounds—Loss of Mass Test—Thermal Stability Test
GB/T 3956-2008 Conductors of Insulated Cables
GB/T 5023.2-2008 Polyvinyl Chloride Insulated Cables of Rated Voltages Up to and Including 450/750V—Part 2: Test Methods
GB/T 18380.12-2008 Test on Electric and Optical Fibre Cables under Fire Conditions—Part 12: Test for Vertical Flame Propagation for A Single Insulated Wire or Cable—Procedure for 1KW Pre-mixed Flame
GB/T 18380.22-2008 Tests on Electric and Optical Fibre Cables under Fire Conditions—Part 22: Test for Vertical Flame Propagation for a Single Small Insulated Wire or Cable—Procedure for Diffusion Flame
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Codes and Product Expressions
4.1 Use Codes (Also Representing Series)
4.2 Material Feature Codes
4.3 Structural Feature Codes
4.4 Heat Resistance Codes
4.5 Product Expressions
5 General Requirements for Cable Structure
5.1 Conductors
5.2 Insulation
5.3 Filling
5.4 Screen
5.5 Sheath
5.6 Mark
6 Finished Cable Test
6.1 Electrical Performance
6.2 Boundary Dimension
6.3 Braiding Density of Screen
6.4 Insulated Core Peeling Test
6.5 Conduction Test on Conductor
6.6 Heat Shrinkage Test on Insulation
6.7 Deflection Test
6.8 Static Deflection Test
6.9 Flame-retardant Test
7 Delivery Length
8 Acceptance Rules
9 Marking and Packaging
Figure 1 Arrangement of Mark
Table 1 Requirements for Non-electrical Test on Polyvinyl Chloride (PVC) Insulation
Table 2 Requirements for Non-electrical Test on Polyvinyl Chloride (PVC) Sheath
Table 3 Requirement for Electrical Performance Test on PVC Insulated Cable
