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Grounding method of mineral fireproof cable
release time:
2022-07-29
Mineral fireproof cables have been used in high-rise buildings and public places in recent years due to their good fireproof performance. The following introduces the grounding method of the mineral fireproof cable.
Mineral fireproof cables have been used in high-rise buildings and public places in recent years due to their good fireproof performance. The following introduces the grounding method of the mineral fireproof cable.
Mineral fireproof cable is inorganic with metal sheath. The terminal connection method is similar to that of ordinary cables and cables. Because the sheath is copper sheath, there is no need to place a separate ground wire when using it. as a ground wire. The construction method is to fix the ground wire and the metal sheath together, and then use lead welding to make the ground wire and the metal sheath in close contact to form a loop. It is also possible to tightly wrap the ground wire on the outer surface of the metal sheath, and then fix it with a heat-shrinkable tube to ensure that the ground wire is in full contact with the metal sheath.
The mineral fireproof cable uses a metal braided mesh to make the copper ground wire in close contact with the metal sheath, and then can be grounded by means of heat shrinkable tubing. Therefore, in order to ensure the quality of mineral fireproof cables during construction and installation, you can refer to the above methods for installation. If you encounter problems in laying and installation, mineral fireproof cables do not require special tools and auxiliary facilities; Bridge, bracket, can also be applied. When the cable accessories (terminals and connectors) are installed, it will be found that the manufacturer will send professional and technical personnel to the site to guide and supply special construction tools. In addition, there is a more important problem. The accessories currently used are all of the press-fit type. The accessories are simple to connect and easy to operate. For newcomers, it will take less than two hours to master the installation and laying techniques.
Keywords:
Mineral fireproof cables
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