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 type NH—fire-resistant type
WDZ—halogen-free low-smoke flame-retardant type WDN—halogen-free low-smoke flame-retardant type
For example: SYV 75-5-1 (A, B, C)
S: Radio frequency Y: Polyethylene insulation V: Polyvinyl chloride sheath A: 64 series B: 96 series C: 128 series 75: 75 ohm 5: wire diameter is 5MM 1: represents single core
S: Radio frequency Y: Polyethylene insulation W: Physical foaming V: Polyvinyl chloride sheath 75: 75 ohm 5: The outer diameter of the cable is 5mm 1: Represents single core
For example: RVVP2*32/0.2 RVV2*1.0 BVR R: Flexible wire VV: Double-layer sheathed wire P shield
2: 2-core multi-strand wire 32: Each core has 32 copper wires 0.2: Each copper wire has a diameter of 0.2mm ZR-RVS2*24/0.12
1. Introduction
A power extension cord (also called an extension cord) is a cable with multiple conductors used for temporary electrical connections that require flexibility. Power extension cords are widely used in various types of electrical tools, equipment, household appliances, and machinery us...