The city communication cable

The city communication cable model USES

A ybl mine fire signal cable including the following points

1, the product USES the standard: MT818-1999

Ybl (1 x 2 x 2 x 2, 3, 4 x 4 x 2 2 5 6 x 2 x 2 x 2 8 10 x 2) polyethylene insulated PVC sheathed with coal mine signal cable, used in the mine for normal signal transmission, portable use.

2, ybl32 (1 x 2 x 2 x 2, 3, 4 x 4 x 2 2 5 6 x 2 x 2 x 2 8 10 x 2) 1/1.0, 1/1.38, polyethylene insulated, steel wire armoured PVC sheathed coal mine signal cable used for entry or shaft or slope for signal transmission.

3, ybl (1 x 2 x 2 x 2, 3, 4 x 4 x 2 2 5 6 x 2 x 2 x 2 8 10 x 2) 1/1.0, 1/1.38, polythene insulated PVC sheathed signal cable is used to mine coal use for normal signal transmission, suitable for fixed installation.

4, ybl 7/0.30, 7/0.37, 7/0.37, 7/0.52 (1 ~ 10, 1 x 4) polyethylene insulated copper wire braided shielding PVC sheathed with coal mine signal cable, used in the electric field interference bigger place for signal transmission, cable is soft.

5, ybl (1 x 2 x 2 x 2, 3, 4 x 4 x 2 5 6 x 2 x 2 8 x 10 x 2) 2 x 7/0.30, 7/0.37, 7/0.43, 7/0.37 polyethylene insulated PVC sheathed with coal mine signal cable, used in the electric field interference bigger place for signal transmission, can be used for fixed installation.

Communication cable installation and installation in the city

1. Long-term allowed working temperature of cable - 40 ~ + 50 ℃, the monthly average relative humidity of 95% (+ 25 ℃);

2. The cable and installation of the allowed temperature should be not less than 10 ℃;

3. The minimum bending radius: MHYV type for 10 times of cable diameter, other models for 15 times the outer diameter.

Communication cable in the city transportation and storage, and matters needing attention

In communication cable is suitable for water, land, empty all the means of transport, in the process of transportation storage should be paid attention to:

1. To prevent moisture intrusion cable;

2. Prevent serious bending and other mechanical damage;

3. Protection from high temperature and sunlight exposure;

4. Cable hoisting should use special lifting equipment, it is forbidden to flat messenger wire plate or directly pass the cable from the sky.