What are the specifications and models of wires and cables? Is N-RVS-2*1.5 a cable or a wire?

2025-09-09 Leave a message

We all know that many products have different specifications and models, with varying performance characteristics suitable for different applications. The same is true for wires and cables, except that they come in a wide variety of specifications and models. Many people ask, what are the specifications and models of cables? Is the N-RVS-2*1.5 cable or wire? I'll briefly explain these two points below.


Common Wire and Cable Specifications


BVVB: Copper Core PVC Insulated PVC Sheathed Flat (B) Wire


AVR: Copper Core PVC Insulated Installation (A) Soft (R) Wire


RV: Soft Copper Conductor Unsheathed Cable


AVRB : Copper core PVC insulated flat flexible wire for installation


RVB: Soft copper conductor flat unsheathed cable


RVS: Copper core PVC insulated twisted (S) flexible wire for connection


RVV: Copper core PVC insulated PVC sheathed flexible wire (the first V indicates PVC insulation, the second V indicates PVC sheath)


AVVR: Copper core PVC insulated PVC sheathed flexible cable for installation


Is N-RVS-2*1.5 a cable or wire?


N-RVS-2*1.5 is a fire-resistant wire. RVS is commonly known as twisted pair wire or twisted pair wire. The "N" indicates fire resistance. N-RVS-2*1.5 stands for two 1.5 square meter fire-resistant twisted pairs, commonly used in fire protection systems. NH-RVS-2*1.5 is a fire-resistant cable. RVS is commonly known as twisted pair cable or twisted-pair cable. The "nh" designation indicates fire-resistant cable. NH-RVS-2*1.5 stands for two 1.5 square-meter fire-resistant twisted-pair cables, commonly used in fire protection systems.


In addition to fire-resistant cables, this cable also includes the flame-retardant ZC-RVS, the low-smoke, zero-halogen, flame-retardant WDZ-RYJS, and the low-smoke, zero-halogen, flame-retardant, fire-resistant WDZN-RYJS. Different cables have different functions and effects, and the better the effect, the higher the price.


RVS is a twisted cable, consisting of one red and one yellow strand twisted together (commonly known as red and yellow, red and black, red and green, red and blue, and red and white). It is also known as twisted cable, twisted pair cable, twisted-pair cable, twisted-pair multi-strand flexible cable, and twisted connecting flexible cable.


RVS cables are used to transmit electrical energy in power lines with voltages up to 300/300V, such as lamp cables, broadcast cables, lighting cables, and fire protection cables. RVS cables are favored by a wide range of users due to their excellent flexibility, high bending performance, excellent insulation, simple manufacturing process, stable structure, and moderate wear resistance.


These are just two points about wires and cables. In fact, there are many types of fire-resistant and flame-retardant cables. It's common for people to confuse the concepts of flame-retardant and fire-resistant cables. While flame-retardant cables have many advantages that make them suitable for chemical companies, such as low halogen and low-smoke flame retardancy, in general, fire-resistant cables can replace flame-retardant cables, but flame-retardant cables cannot replace fire-resistant cables.