Do you know this in your life? (conventional home wiring)

Do you know this in your life? (conventional home wiring)

How to choose the type of conventional home installed wire?

I. model of conventional home installation wire.

1. BV (polyvinyl chloride insulated copper conductor wire, hereinafter referred to as BV) is single-strand copper conductor, BVR multi-strand copper conductor, BVV sheath single-strand copper conductor (double-layer polychloride sheath wire), and BVVR double-gel multi-strand copper conductor.

2. In addition, BV and BVR wires should be distinguished. BV is single-core wire (hard wire) and BVR is multi-core wire (soft wire).

Note: Portable Highly Insulated Resistance Measuring Meter Supplier China shares that in the process of home decoration, it is necessary to lay electric wires in the pipe, that is, when threading, BVR is more convenient than BV for water and electricity construction.

3. Zb-bv flame retardant wire, as the name suggests can hinder combustion. Generally used in dense places, on the wire and cable requirements are very high places.

ZR means flame retardant, the wire and cable flame retardant grade A, B, C, ZB stands for class B flame retardant, ZR silent thought class C flame retardant. ZA>ZB>ZC, whether it is home installed wire or power cable will have the distinction of flame retardant grade.

Class A/B/C flame retardant cables are classified in accordance with the GB/ t18380-2008 code of practice and are used to evaluate the ability of vertically mounted bundles of wire or cable to inhibit the vertical spread of flame under specified conditions.

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