gui chao cable news: cable line work needs to pay attention to safety precautions-非凡电子娱乐

according to the characteristics of cable, cable line staff subject to "electrical safety regulations" abroad,

important safety precautions that require special attention are the following.

(1) the cable line is hidden, it is more complex than the overhead line, with the potential insecurity. you must carefully check the nameplate cable line before the start of the work.

(2) the power cable has a certain capacitance, which has the characteristics of charging and discharging. before and after the power failure of the cable, the cable withstand voltage test and the measurement of insulation resistance

phase discharge.

(3) mv user line cable, when directly connected with the distribution transformer, low voltage switch must be opened and the general user listing, to prevent low side power supply.

(4) in the cable laying on a plurality of parallel connection changing or maintenance. the cable must be carefully identified, and the safety measures such as electricity, discharge and grounding should be carried out in power failure

the inspection cable line shall always assume that the line is energized.

(5) at the other end of the cable withstand voltage test, a warning sign or a guard shall be placed on the other end.

(6) before entering the cable well or tunnel, it is necessary to detect the content of combustible and poisonous and harmful gas, and adopt the measures of exhaust. work well should be set to ring, and a man

guard.

(7) strictly abide by the provisions on the use of open fire near electrical equipment.

(8) submarine cable maintenance work, should wear life jackets on board.