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How to choose the model of home wiring?

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  • 发布时间:2019-11-07 16:14
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【概要描述】Bv (PVC insulated copper wire, hereinafter referred to as BV) is a single strand copper core, BVR multi strand copper core, BVV sheath single strand copper core (double-layer polychlorinated sheath wire), bvvr double glue multi strand copper core.

How to choose the model of home wiring?

【概要描述】Bv (PVC insulated copper wire, hereinafter referred to as BV) is a single strand copper core, BVR multi strand copper core, BVV sheath single strand copper core (double-layer polychlorinated sheath wire), bvvr double glue multi strand copper core.

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  • 来源:
  • 发布时间:2019-11-07 16:14
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详情
 1、 Model of home wiring:
1. Bv (PVC insulated copper wire, hereinafter referred to as BV) is a single strand copper core, BVR multi strand copper core, BVV sheath single strand copper core (double-layer polychlorinated sheath wire), bvvr double glue multi strand copper core.
2. In addition, pay attention to distinguish BV and BVR wires - BV is single core wire (hard wire), BVR is multi-core wire (soft wire), and the same square BVR is about 10% more expensive than BV
Note: in the process of home installation, it is necessary to lay wires in the pipes, i.e. BVR is more convenient for water and electricity construction than bv when threading.
3. Zb-bv is flame-retardant wire, as the name implies, it can block combustion. Generally used in dense places, places with high requirements for wires and cables.
Zr means flame retardant. The flame retardant level of wires and cables is divided into three levels: A, B and C. ZB means flame retardant level B. Zr defaults to flame retardant level C. The flame retardant property Za > ZB > ZC, no matter it is the home installed wire or power cable, there will be the difference of flame retardant grade.

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