The lightning cable is electrified, I didn t figure it out. Who s going to explain? 100

There are three reasons for this phenomenon: first, there is a leakage point with resistance (non-metallic grounding); Second, there is serious oxidation --- poor grounding at the connection point of the lightning cable; Third, the transformer neutral point high resistance grounding or the system is not grounded system. In addition, the electric pen does not mean that there is a dangerous voltage, if there is an induced voltage that can be inductively coupled with this line, especially the high frequency, there will be this phenomenon under the premise that there is serious oxidation --- poor grounding at the connection point of the lightning cable.

Therefore, one, first detect the grounding resistance of the wire to ground. Second, use the power failure method to check the leakage circuit, and eliminate it in a targeted manner after identification. A short circuit to the ground is not open, and it is normal for the neutral point to be ungrounded in the system.

In the neutral grounding system, it is important to check whether the neutral point to the grounding device of the transformer meets the requirements.

Judging from the described situation, it is more likely that the system is a neutral point and not grounded system. It is recommended to focus on checking whether the grounding resistance value of the lightning cable connection point meets the requirements. Check the leakage point with resistance (non-metallic grounding).

The above suggestions are for your reference. I wish you a successful investigation!

It may be that the bus of the neutral wire (the low-voltage side of the transformer) is broken, and at the same time, the grounding resistance of the ground wire of the arrester is too large (10), which may be caused by poor rust contact.

The third floor is very detailed, but I think the phenomenon of the landlord has been explained very clearly. The cause should be a poor equipotential connection. Here's why:

The lightning wire and the ground wire of the power supply, and even the steel bars of the building should be connected together, when you take the electric pen to measure, the voltage under your feet should be equal to the voltage at your measurement point, and you should not be able to measure anything, which means that there is no communication between the steel bars of the building under your feet and the lightning rod, and in the same way, your power grounding wire is not connected with the lightning grounding. This is completely inconsistent with the lightning protection design code of the building, and the developer can be found. There is a serious suspicion that someone has cut corners.

The word "lightning line" is explained as: lightning line bìléixiàn. (1) A line erected to prevent the conductor of an overhead transmission line from being struck by lightning.

The word "lightning line" is explained as: lightning line bìléixiàn. (1) A line erected to prevent the conductor of an overhead transmission line from being struck by lightning.

The structure is: avoidance (semi-enclosed structure) lightning (upper and lower structure) line (left and right structure). The pinyin is:

bìléixiàn。The phonetic pronunciation is: one by one.

What is the specific explanation of the lightning cable, we will introduce it to you through the following aspects of Qi Zhixian:

1. Online explanation [click here to view the details of the plan].

Lightning protection line lightning line is iron, lightning rod is copper (can also be silver), the top of the lightning rod to the sky, lightning wire connection lightning net buried, lightning wire connection lightning rod remaining lightning rod, thunderstorm season, lightning from the sky from the height imitation lightning rod into the lightning line until the buried lightning net, is to eliminate lightning strikes to protect the building or instrument facilities.

Idioms about lightning lines.

Elongated wire, horizontal needle, vertical wire, monofilament, no thread, one needle, one thread, broken thread, pearl grass, snake gray thread, lead thread, needle thread, needle thread, tail thread, twine.

Words about lightning lines.

Haven needle thread tail lead thread thread thread hope grass snake gray thread silk twine united front elongated thread monofilament no thread broken thread pearl.