PVC Insulated Copper Wire Building Wire

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1. Product Description:

1. building electric cables wire Appliation

Cables used for communication system, its rated voltage should be at least equal to the system of nominal voltage, In dc system, nominal voltage should not greater than 1.5 times of rated voltage, System allows more than nominal voltage working voltage by 10%.

 

2. Product Characteristic:

(1)cables long-term allowed no more than 70°c, BV - 90 shall not exceed 90 Celsius temperature , the installation should not below 0°c Celsius temperature .

(2) cable permissible min. bending radius: less than 25 mm of exterior cable should be no less than 4 times of cable diameter, if for 25 millimeters, wire bending radius should not less than 6 times of cable diameter.

(3) wire and cable length of knitting or into the dish for 100 meters, length error of 0.5 meters

 (4) RV - 90 long-term allowed no more than 90 °c

 

3.Specification

Type

Name

Laying place and requirement

Crated voltage

Nominal Section (mm2

227IEC01(BV)

Copper conductor PVC insulated wires

Aluminum conductor PVC insulated wires

Fixed laid indoors

Conduit etc.

450/750

300/500

450/750

1.5...185

227IEC05 (BV)

0.5...1

BLV

2.5...185

227IEC07(BV-90)

Heat resistant copper conductor PVC insulated wire at 900C

Mainly be laid at the places of high temperature environment and can be laid indoors ,conduits.

300/500

0.5...2.5

BVR

Copper conductor PVC insulated flexible cable

Be for laying permanent place where flexible required.

450/750

2.5...150

BLVV

Aluminum conductor PVC insulated PVC sheathed round wires

 

Fixed laid, fit for the places with high mechanical protection and moisture place, can be laid in the air or underground.

BVVB

Copper conductor PVC insulated PVC sheathed flat wires

300/500

1...10

BLVVB

Aluminum conductor PVC insulated PVC sheathed flat wires

300/500

2.5...10

227IEC02(RV)

227IEC06(RV)

Copper conductor PVC insulated flexible connector wire

Mainly used at middle and light style moving electronics, home appliances, power and lighting and the places where flexible required

450/750

300/500

1.5...240

0.3...1

227IEC42(RVB)

Copper conductor PVC insulated flat flexible connector wire

300/300

0.3...1.5

 

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There is a relationship, the aging of the wire will increase the resistance, so the voltage loss in the wire becomes larger, so the voltage will be reduced. Cable aging reasons: external damage. In recent years, the operation of the analysis point of view, especially in the rapid economic development of Haipu East, and now a considerable number of cable failures are due to mechanical damage caused. For example: cable laying installation is not standardized construction, likely to cause mechanical damage; in the buried cable to engage in civil construction is also very easy to run the cable damage. L sometimes if the damage is not serious, to a few months or even years will lead to complete breakdown of the damaged parts of the formation of failure, and sometimes serious damage may occur short-circuit failure, a direct impact on electricity and electricity units of safe production. Insulation damp: This is also very common, generally occurs in the direct or barrel of the cable connector. For example: the cable connector production failure and in the wet weather conditions do joints, will make the joints into the water or mixed with water vapor, a long time r in the electric field under the action of the formation of water branches, and gradually damage the cable insulation strength caused by failure. Chemical corrosion. Cables are buried directly in the area of ​​acid and alkali, often lead to cable armor, lead skin or outer sheath is corroded, protective layer due to long-term chemical corrosion or electrolytic corrosion, resulting in protective layer failure, insulation reduction, Cable failure. The corrosion of the unit is quite serious.

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