The Difference Between ZR And ZC in The Cable Specification, There Is A Big Difference

We often see the engineer laying the cable surface printed with the letters ZC and ZR at the time of work in the engineering site, see this after and engineer to understand that these are flame retardant cable, but what is the difference between cable ZR and ZC? What are the differences, let's take a look below!

Cable specifications ZR and ZC difference

Generally speaking, the performance of flame-retardant cable ZR grade can be a single strand of vertical cable for combustion testing, without evaluating the bundle combustion performance, which is the grade of ZR cable.

And ZC refers to the flame retardant performance of the cable needs to meet the multi-strand conductor together into a bundle for combustion testing, which is the ZC grade test requirements, flame retardant cable grade ZC is higher than ZR.

Flame retardants are mainly organic and inorganic, halogen and non-halogen.

Organic flame retardants are bromine, argon, red phosphorus and their compounds. Inorganic flame retardants mainly include antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon and other flame retardants.

Generally speaking, organic flame retardants have better affinity in plastics. Brominated flame retardants occupy the absolute advantage in organic flame retardant systems. Although there are many criticisms on environmental protection, it is always difficult to replace other flame retardant mechanisms.

Wire storage precautions:

1. when wire and cable are in storage, contact with acid, alkali and mineral oil is strictly prohibited, and they should be stored in isolation from these corrosive substances;

2. wire and cable in the warehouse should be stored in the presence of harmful gases do not destroy the insulation and corrosion of metal .

3. try to avoid exposing the cable to the open storage way, cable bridges are not allowed to be placed flat;

4. The cable should be regularly tumbled during storage such as once per quarter. When rolling, the edges of the discs stored down are rolled up to avoid moisture decay on the bottom side. Pay frequent attention to the integrity of the cable head when stored;

5. Cable storage period to product delivery period is limited, generally no more than one and a half years, the longest not more than two years.

6. transportation is strictly prohibited high throw wire and cable or cable bridge with cable, especially at lower temperatures (generally below 5 ℃), throwing, throwing the cable may lead to insulation, sheath cracking;

7. lifting packaging, prohibit the lifting of multiple discs at the same time. In vehicles, ships and other vehicles, wire and cable bridges should be fixed with appropriate methods to prevent each other from sticking in the extrusion together to prevent surface breakage.

Well, for you to summarize so much about the difference between the ZR and ZC cable specifications, you guys have got it, at the same time, if you also want to know more information suggested to pay attention to our XSD Cable official website, the follow-up will be regularly updated for you more information about the cable news!