High-temperature resistant wire: Basic knowledge of wire and cable

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Wires and cables in a broad sense are also referred to as cables for short. In a narrow sense, cables refer to insulated cables. It can be defined as: an assembly consisting of the following parts, one or more insulated cores, and their respective possible coating layers, total protective layer and outer protective layer. The cable may also have additional conductors without insulation. my country's wire and cable products are divided into the following five categories according to their use:

1. Bare wires; 2. Winding wires; 3. Power cables; 4. Communication cables and communication optical cables; 5. Wires and cables for electrical equipment. The basic structure of wire and cable:

1. Conductor: An object that conducts current, and the specifications of wires and cables are expressed by the cross-section of the conductor.

2. Insulation: The outer insulating material is based on its withstand voltage.

R-flexible cable (wire) for connection, flexible structure

V-Insulation PVC

V-PVC insulation

V-PVC sheath

B-Flat (flat)

S-twisted pair

A-tinned or silver plated

F-High temperature resistance

P-braided shield

P2-Copper tape shield

P22-Steel tape armored

Y—prefabricated type, generally omitted, or polyolefin sheath

FD—product category code, refers to branch cables. The Ministry of Construction standards to be promulgated are denoted by FZ, which are essentially the same

YJ—cross-linked polyethylene insulation

V—Polyvinyl chloride insulation or sheath

ZR—flame retardant


WDZ—halogen-free low-smoke flame retardant

WDN—halogen-free low-smoke refractory

RV copper core vinyl chloride insulated connection cable (wire)

AVR tinned copper core polyethylene insulated flat connection flexible cable (wire)

RVB copper core PVC flat connecting wire

RVS copper core PVC stranded connecting wire

RVV copper core PVC insulated PVC sheathed round connecting flexible cable

ARVV tinned copper core PVC insulated PVC sheathed flat connecting flexible cable

RVVB copper core PVC insulated PVC sheathed flat connecting flexible cable

RV-105 Copper core heat-resistant 105oC PVC insulated PVC insulated flexible connection cable

AF-205AFS-250AFP-250 Silver-plated polychloroethylene fluoride plastic insulated high temperature resistant -60oC~250oC connecting flexible wire

Yangzhou Fongming Cable Factory, a mid-to-high-end mica wire manufacturer, pays attention to the world situation and hot spots in the world.