三芯电缆怎么运用电缆接地箱接地？
How to use cable grounding box for three core cable grounding?
我们知道电缆接地箱通常都是针对于单芯电缆来说的，那么三芯电缆是否需要用电缆接地箱以及三芯电缆怎么运用电缆接地箱呢？这都是多数电缆接地箱客户的疑问。井盖钢模具 U型槽模具 天津水处理设备 检查井钢模具 保定公司注册 u型槽模具 流水槽模具
We know that the cable grounding box is usually for single core cable, so do three core cables need cable grounding box and how to use cable grounding box for three core cables? This is the question of most cable grounding box customers.
说到三芯电缆是否需要用电缆接地箱，这个问题，因为电缆接地箱是后备设备，用来保护电缆，电缆在运转当中会发热，这也就意味着要耗费电缆的元器件所以运用电缆接地箱会延伸电缆的寿命。
When it comes to whether three core cables need to use cable grounding box, because the cable grounding box is a backup equipment, which is used to protect the cable. The cable will heat during operation, which means that it will consume the components of the cable. Therefore, the use of cable grounding box will extend the service life of the cable.
三芯电缆怎么运用电缆接地箱接地，三芯电缆，通常都选用两端金属护层直接接地方法 (35kV以下)因为在正常运转中，流过三个线芯的电流向量总和为零，在铝包或金属屏蔽层外基本上没有磁链，这样，在铝包或金属屏蔽层两端就基本上没有感应电压，所以两端接地后不会有感应电流流过铝包或金属屏蔽层。
How to use the cable grounding box for three core cable grounding? Three core cable usually adopts the direct grounding method of metal sheath at both ends (below 35KV), because in normal operation, the sum of current vectors flowing through three cores is zero, and there is basically no magnetic chain outside the aluminum clad or metal shielding layer, so there is basically no induced voltage at both ends of the aluminum clad or metal shielding layer, Therefore, after both ends are grounded, there will be no induced current flowing through the aluminum package or metal shielding layer.