Introduction of quotation, model and specification of low-voltage copper core cable

Cable is indispensable in the electric power industry. Cables are mainly composed of one or more mutually insulated conductors and insulation layers, and are mainly used to transmit power signals from one place to another. There are many kinds of cables, and the most common one is low-voltage copper core cable. Low-voltage copper core cable His heart is made of copper core. But many friends are not familiar with low-voltage copper core cable, so Bian Xiao will tell you about low-voltage copper core cable.

Quotation of low voltage copper core cable

The price of 1 and yjv22-4*240 cables is around 650 yuan/m, and the national standard project quotation may be higher, around 800.

2. Add up the cross-sectional areas of all cores in the cable, then divide it by 10000 (converted into square decimeter), multiply it by the length of the cable (also decimeter, 1 meter = 10/decimeter), and finally multiply it by 8.9, and the result is the weight of copper cores in this cable.

(The price comes from the Internet and is for reference only)

Low-voltage copper core cable model

BLV？ Aluminum core PVC insulated wire;

BVV？ Copper core PVC insulated PVC sheathed wire;

BLVV？ Aluminum core PVC insulated PVC sheathed wire;

BVR？ Copper-core PVC insulated flexible cord;

RV? Copper core PVC insulated installation cord;

RVB？ Copper conductor PVC insulated flat connecting wire;

BVS？ Copper conductor PVC insulated stranded wire;

RVV？ Copper core PVC insulated PVC sheathed flexible cord;

BYR？ Polyethylene insulated flexible cord;

BYVR？ Polyethylene insulated PVC sheathed flexible cord;

RY？ Polyethylene insulated flexible cord;

RYV？ Polyethylene insulated PVC sheathed flexible cord

Specification for low-voltage copper core cables

The wire diameters are 1.5, 2.5, 4,6, 10,16,25,35,50,70,95, 120, 150,/kloc.

There are many combinations of single core and multi-core, among which 3 cores, 4 cores and 5 cores are commonly used. Among them, 4-core and 5-core are divided into equal-diameter and unequal-diameter, that is to say, 4-core and 5-core correspond to 3+ 1 and 4+ 1 or 3+2 respectively. N-wire and PE-wire of non-equal-diameter cables are in line with national standards, such as 4 * 185.

Main technical features

(1) rated voltage: 50HZ AC, 1000V and below.

(2) The insulated wire core can withstand 50HZ and 3000V AC voltage without breakdown for 5 minutes.

(3) When the insulation resistance of the cable is +20, it shall not be less than10mΩ? kilometre (km)

(4) Can the cable work at +220℃? Long-term operation at ambient temperature

(5) After low temperature, immersion, high temperature and combustion tests, the technical and mechanical properties of the cable remain unchanged.

Low voltage copper core cable is an important material in power industry at present. It is mainly used to transmit power signals from one conductor to another in low voltage environment. Low-voltage copper core cable is widely used in coal mine industry. In addition, he is very commonly used in rural areas and suburbs. The working temperature of low-voltage copper core cable is generally around 90℃, and the service life of low-voltage copper core cable is very long, up to 40 years. If necessary, you can know the main technical characteristics and related capacity of low-voltage copper core cable.

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