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Lianyungang Dafa Labor Insurance Supplies Co., Ltd.

Contact: Mr. Zhang

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The energy of arc welding is one of the causes of fire

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The energy of arc welding is one of the causes of fire

作者: Release Date: 2017-04-27 Author: Click:

Welding work needs to be performed at high temperatures, and it is an operation that has both electricity and open flames. If safety measures are not implemented well, fires are easy to occur, and from historical lessons, there are many fires caused by electric welding operations. Therefore, in addition to wearing the necessary work clothes and welding gloves, workers should also be aware of the operation to avoid fire.

Welding

The energy of arc welding is transmitted by wires. Improper selection, aging of insulation, incorrect connection, etc. will cause the wires to burn or cause other fires. (1) Wire overload: The welding circuit is a large-capacity power supply line with a current of tens to hundreds of amps. In this way, higher requirements are imposed on the connection and selection of the wires. Generally, multi-strand copper cables are used. Sometimes, because the welding personnel cannot find a suitable cable or do not understand, they will temporarily replace the ordinary insulated wire with a small cross-sectional area. This will cause the welding wire to overload and heat up. The lighter wire burns and the heavy one ignites. Combustible materials around the wires and electric shock. (2) Welding cable burning: If the welding cable is used for a long time, the insulation layer will deteriorate and the infrared performance will be reduced. At the same time, due to mechanical damage or corrosion of harmful substances, some of the insulation layer of the welding cable will lose its original insulation ability. In this way, when the welding is performed, the positive and negative wires crossing together will cause leakage or short circuit, which will cause the cable to burn.


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