What Kind of Cable Wire Is YJV? What Is The Meaning of ZR-YJV Cable? (Cable Knowledge Point Introduction)

At present, there are a lot of newcomers who just contact the cable project, because there is no knowledge of the national cable industry, so the scientific name of the cable is still very unfamiliar, in their contact with the cable line from time to time see some cables very large root, the appearance of the printed YJV and ZR-YJV and other words, in fact, they look confused, and do not know what YJV is the cable line, let alone know ZR-YJV is What do you mean? Here we'll take a look at the knowledge of these two types of cables!

YJV is what cable Wire

Y: polyethylene power cable;

J: cross-linked;

V: polyvinyl chloride sheath;

YJV cable, the industry is currently called cross-linked polyethylene insulation polyvinyl chloride sheathed power cable, we see most of the black outer line are YJV line.

YJV cables need to pay attention to the following matters in use:

Different cross-sectional area of YJV cable has different characteristics, please pay attention to when using, rated frequency UO/U for 0.6/1kv. the maximum long-term operating temperature of the cable conductor is 90 ℃. When short-circuiting, the maximum time shall not last more than 5 seconds, and the maximum withstand temperature of the cable conductor shall not exceed 250℃. The ambient temperature of cable laying should not be lower than 0C. Bending radius of single-core cable: not less than 15 times the diameter of the cable, multi-core cable is not less than 10 times the diameter of the cable. Cable laying should use special tools, such as wire frame, guide roller, etc., to prevent mechanical damage when laying, and keep away from heat sources. When laying the cable, the inner diameter of the pipe shall not be less than 1.5 times of the outer diameter, the cable shall not be compressed in the pipe, and the total area of the cable shall not exceed 40% of the total area of the pipe.

People are very doubtful ZR-YJV cable is what it means?

R-is a flame-retardant cable with flame-retardant grades A, B and C, of which A is the highest; ZR is usually regarded as ZR; ZRC or ZR is C flame-retardant, ZRB or ZB is B flame-retardant and ZRA or ZA is A flame-retardant;

S-Yj-cross-linked polyethylene insulation; V-polyvinyl chloride sheath;

T-rated voltage 0.6/1kv cross-linked polyethylene insulated power cable

Scope of application

Transmission and distribution lines should be laid in AC 50Hz, rated voltage 0.6/1kv and below fixed. Compared with PVC power cable, the product not only has excellent electrical properties, mechanical properties, heat aging resistance, environmental stress resistance and chemical resistance, and has a simple structure, light weight, long-term high temperature resistance (90C) and other characteristics.

Well, this time for you to inventory the two kinds of cable, you guys have got it, our company is a professional R & D production of various cables and wires, need to contact! At the same time, if you still want to know more information, we suggest to pay attention to our XSD Cable official website, the follow-up will be regularly updated for you more relevant cable-related information!