Isolated (flexible) mineral insulated cable structure diagram
Conductor: Made of multiple strands of copper wires twisted together, with good bending properties
1.Insulation layer: Made of mineral insulation material.
2.Metal sheath: Made of aluminum soft sheath, processed by special process, with good conductivity, mechanical impact resistance, flexible bending and other characteristics (can replace ground wire).
3.Isolation sheath: Made of cross-linked polyethylene waterproof isolation layer.
4.Oxygen isolation layer: Made of Mg (OH) 2 or AI (OH) 2 mineral material, with high temperature resistance, heat insulation, flame retardant and fireproof properties.
5.Outer sheath: Made of low smoke non-toxic or better and higher plastic material, with good corrosion resistance, different grades of materials can be selected according to requirements.
Model description example of fireproof cable
1-Type code: Fire-resistant-N. Isolation-G. Grade A (950°C~1000°C) for 3 hours. Wiring series B.
2-Conductor code: Copper conductor-T
3-Insulation code: Mica insulation-omitted
4-Metal sheath code: Aluminum metal sheath-L. Aluminum alloy metal sheath-LH. Copper metal sheath-T. Copper alloy metal sheath-TH
5-Sheath code: Polyethylene/polyolefin-Y
※ In order to comply with relevant acceptance specifications in various places, functional codes such as WDZAN, WDZN, NH, ZR can be added in front of the model, and the actual products are the same.
Product examples of mineral insulated cable
For example:
Isolated (flexible) mineral insulated cable, rated voltage 0.6/1kV, 4 cores, nominal cross section 120mm2, expressed as: NG-A (BTLY) 0.6/1kV 4x120.
Isolated (flexible) mineral insulated cable, rated voltage 0.6/1kV, 1 core, nominal cross section 240mm2, expressed as: NG-A (BTLY) 0.6/1kV1x240.
It can be referred to as NG-A or BTLY, also known as NG-A (BTLY), WDZAN-BTLY, WDZAN-BTLV, BTLV, BTLYQ, BTLYQ.
