Wire and cable representation consists of three main parts: type, specification and standard number. The following are the uses and specifications of various cables and the correct representation of cables, welcome to learn

　　1、The meaning of the model number

　　Electrical equipment with wire and cable and power cable models are mainly composed of the following seven parts:

　　Some special wire and cable models and then there are derived codes. The following will be commonly used in the meaning of the letters in the model of wire and cable::

　　Category, use code

　　A - installation line B - insulated line C - marine cable

　　K-Control cable N-Agricultural cable R-Flexible cable

　　U - mining cable Y - mobile cable JK - insulated overhead cable

　　M-Mine

　　ZR-Fire-retardant NH-Fire-resistant ZA-Fire-retardant class A

　　ZB - Class B Flame Retardant ZC - Class C Flame Retardant WD - Low Smoke Halogen Free

　　Conductor code

　　T-Copper conductor (omitted) L-Aluminium core

　　Insulation code

　　V-PVC plastic YJ-XLPE insulation

　　X-Rubber Y-Polyethylene material

　　F-Polytetrafluoroethylene

　　Sheath code

　　V-PVC sheath Y-Polyethylene material

　　N-Nylon sheath P-Copper wire braid shield P2-Copper tape shield

　　L-Cotton woven wax coated gram Q-Lead covered

　　Feature Designators

　　B-Flat type R-Soft

　　C-Heavy Q-Light

　　G-High voltage H-Welding machine

　　S-Twisted

　　Armouring layer code

　　2-Double steel belt 3-Fine round steel wire

　　4-Rough wire

　　Outer sheath code

　　1-Fibre layer 2-PVC sleeve

　　3-PE sheath

　　2, commonly used electrical equipment with wire and cable and power cable model examples

　　VV - copper core PVC insulated PVC sheathed power cable

　　VLV-PVC-insulated PVC-sheathed power cable with aluminium core

　　YJV22 - copper-core cross-linked polyethylene insulated steel-belt armoured PVC-sheathed power cable

　　KVV-PVC-insulated PVC-sheathed control cables

　　227IEC 01(BV)-BV, single-core hard conductor unjacketed cables for general purposes

　　227IEC 02(RV)-RV for short, single-core flexible conductor unjacketed cables for general purposes

　　227IEC 10(BVV)-BVV for short, light polyvinyl chloride sheathed cables

　　227IEC 52(RVV)-Abbreviated as RVV, light duty polyvinyl chloride sheathed flexible cables

　　227IEC 53(RVV)-RVV for short, ordinary PVC sheathed flexible cables

　　BV-PVC insulated wire with copper core

　　BVR-PVC insulated flexible cable with copper core

　　BVVB-Copper core PVC insulated PVC sheathed flat cable

　　JKLYJ-Cross-linked polyethylene insulated overhead cables

　　YC, YCW-Heavy duty flexible rubber cables

　　YZ, YZW - medium-sized flexible rubber cables

　　YQ, YQW-Light rubber cables

　　YH - welding machine cables

　　Cable

　　Specification

　　The specifications consist of the rated voltage, the number of cores and the nominal cross section.

　　Wires and control cables are generally rated at 300/300V, 300/500V, 450/750V, etc.

　　The rated voltage of medium and low voltage power cables is generally 0.6/1kv, 1.8/3kv, 3.6/6kv, 6/6(10)KV, 8.7/10(15)kv, 12/20kv, 18/20(30)kv, 21/35kv, 26/35kv, etc.

　　The number of cores of wire and cable is determined according to actual needs, generally power cables mainly have 1, 2, 3, 4, 5 cores, wires are also mainly 1 to 5 cores, control cables have 1 to 61 cores.

　　The nominal cross-section is an approximation of the cross-section of the guide body. In order to achieve the specified DC resistance, easy to remember and unified and specified a conductor cross-section near a whole value. China's unified provisions of the conductor cross-section are 0.5, 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400, 500, 630, 800, 1000, 1200, etc.. It should be stressed here that the nominal cross-section of a conductor is not the actual cross-section of the conductor, which is smaller in many cases and larger in a few cases than the nominal cross-section. In the actual production process, as long as the DC resistance of the conductor meets the specified requirements, it can be said that the cross-section of the cable is up to standard.

　　Standard numbering

　　We now produce most of the wire and cable countries or industries have a clear standard provisions, the main purpose of course, to make the design, the use of uniform.

　　GB5023-1997 rated voltage 450/750V and below PVC insulated cables

　　JB8734-1998 rated voltage 450/750V and below PVC insulated cable wire and flexible wire

　　GB 5013-1997 Rubber insulated cables with rated voltage 450/750V and below

　　GB/T12706-2002 Extruded insulated power cables and accessories with rated voltage from 1kV to 35kV

　　GB/T 9330-1988 Plastic insulated control cables