WHAT ARE THE FIRE PROTECTION MEASURES FOR POWER CABLES?

When a short circuit occurs or there is an open fire nearby, the commonly used XLPE power cables will be caused by flames, and the fire will be more serious, especially when multiple cables are laid in a concentrated manner. Therefore, it is very important to take reasonable fire protection measures for cables to prevent the spread of cable fires. In general, the fire protection measures for cables are as follows:

1. All cables laid within 2 meters on both sides of the cable intermediate joints or branch joints laid on the cable trenches, cable tunnels or cable trays of the cable layer shall be painted with the special fireproof paint for cables in several times to achieve The film thickness specified by the manufacturer. For any cable passing through the floor and wall, within 2 meters on both sides of the passing through, the fireproof paint should also be painted as required.

2. For any perforations that pass through the floor and wall, the holes should be blocked with fireproof blocking materials around the cable. Perforations for laying multiple cables.

3. The perforation of underground cables that may leak water can be blocked with special organic plugging materials for cables.

4. In order to prevent adjacent fires that may threaten multiple cables on the cable rack, the cables can be directly laid on the fire-resistant cable tray.

5. In order to prevent the cable fire from affecting the cables laid on the upper cable rack, a layer of cable fire baffle can be laid on the upper cable, and then the cables can be laid on it.

6. The cable fireproof tape can be wrapped on the cable, which plays the same role as the cable fireproof coating. In order to ensure the effectiveness of the fire protection measures for the cables, after the construction of the fire protection measures for the cables is completed, the painting or installation of the fireproof paint should be checked regularly, and the areas where the fireproof paint is peeled off or damaged should be repaired in time to ensure that it has normal fire protection. Function.