A cable is a wire made of one or more insulated conductors and an outer insulating protective layer that transfers power or information from one location to another. Cables include power cables , control cables , compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire resistant cables, marine cables, mining cables, aluminum alloy cables, and the like. They are composed of single or multi-strand wires and insulating layers for connecting circuits, electrical appliances, and the like. Cables have so many uses, what should I do if the cable bursts? How to prevent it? Electric Tiger Xiaobian introduced for everyone.
The trick to prevent cable fire and explosion:
1. Ensure the construction quality, especially the production quality of the cable head must strictly meet the requirements.
2. Conduct cable testing regularly and deal with it immediately if there is a problem.
3. Install the fire alarm device to immediately find the fire and avoid the cable from catching fire.
4. The cable trench should be kept dry to prevent the cable from being damp, causing the insulation to drop and causing a short circuit.
5. Enhance cable operation monitoring to avoid overloading the cable.
6. Accidentally clean the dust accumulated on the cable to prevent the cable from igniting due to spontaneous combustion of the accumulated dust.
7. Enhance the periodic calibration maintenance of the cable circuit switch and protection to ensure its reliable operation.
8. When laying the cable, keep a sufficient distance from the heat pipe, control cable ≥ 0.5 m; power cable ≥ 1 m; control cable and power cable should be slotted, layered and separated, it is impossible to overlap between layers; In accordance with the demarcated parts, the cable should be fire-retardant and heat-insulated.
9. Equipped with the necessary fire fighting equipment and facilities. Overhead cables can be fired with common fire-fighting equipment, but automatic or remote-controlled fire-extinguishing devices such as 1301 fire-fighting devices and water-spray fire-fighting devices should be installed in cable sandwiches, shafts, trenches and tunnels.
10. Take fire retardant measures.
1. Electrical laminated wood is widely used as insulating and supporting material in transformers and instrument transformers. It has many virtues such as moderate specific gravity, high mechanical properties, easy vacuum drying, easy mechanical processing etc. The dielectric constant of this material is close to transformer oil, so it makes a reasonable insulation match. And it can be used in transformer oil of 105℃ for long time.
2. People usually use this material to make upper/lower pressure pieces, cable supporting beams, limbs, spacer blocks in oil-immersed transformers, and clamps in instrument transformers. It replaced steel plates, insulating paper sheets, epoxy paper sheets, epoxide woven glass fabric lamination in these fields, and cut down the material expenses and weight of transformers.
3. The raw materials of electrical laminated wood are high quality birch and willow timbers. After boiling, rotary cutting, drying, these timbers are made to veneers. At last the veneers will be glued with special insulating gluewater and processed under high temperature and pressure.
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Yingkou Dongyuan Electrical Insulation Board Co.,Ltd , https://www.dy-insulation.com