Product description

Instructions for the use of flame retardant communication cables for coal mines

1. Use:

MHYV is used for drift, inclined drift and electromechanical chamber

MHJYV is used for high mechanical damage in level and inclined lanes

MHYBV is used in high mechanical impact level and inclined lanes

2. Working conditions

1, the long-term allowable working temperature of the cable conductor -40 ~ +50℃; The average maximum monthly relative temperature is 95% (at +25 ° C).

2, the cable allowed laying and installation temperature should not be lower than -10 ℃.

3, the minimum bending radius of the cable: MHYV and MHJYV cable is 10 times the outer diameter of the cable; The MHYBV model is 15 times the outer diameter.

Third, the use of cable and its precautions:

1, before installing the cable, first check whether the product is consistent with the model specifications equipped with the equipment, whether it can meet the normal needs of production, and pay attention to the insulation layer surface treatment clean.

2, the use of cables, electrical and mechanical workers should be strictly in accordance with the provisions of the operation and installation, in the operation of the cable at all times to detect the operation of the cable, and record the results of the inspection, to prevent the cable in the operation of external damage or other reasons caused by cable short circuit, break.

3, after the shutdown, the cable for a comprehensive inspection, found problems in a timely manner.

Copper core PVC insulated PVC sheathed control cable for coal mine use instructions

1, the range of use: rated voltage 450/750V and below the control, monitoring circuit and protection circuit connection

Second, product use conditions:

1, rated voltage 450/750V.

2, polyvinyl chloride insulated cable conductor long-term allowable operating temperature of 650C;

3, the laying temperature of the cable is not less than 0 oC, the recommended allowable bending radius: the cable without armor layer,

Not less than 6 times the outer diameter of the cable. Cables with armored or copper tape shielding structure, not less than 12 times the outer diameter of the cable.

Third, the use of cable and its precautions:

1, before installing the cable, first check whether the product is consistent with the model specifications equipped with the equipment, whether it can meet the normal needs of production, and pay attention to cleaning the insulation shield surface layer during installation.

2, the use of cables, electrical and mechanical workers should be strictly in accordance with the provisions of the operation and installation, in the operation of the cable at all times to detect the operation of the cable, and record the results of the inspection, to prevent the cable in the operation of external damage or other reasons caused by cable short circuit, break.

3, after the shutdown, the cable for a comprehensive inspection, found problems in a timely manner