What is that leakage current? The current is said to be leaking if the current flow outside the conductor. If electrical equipment is not properly grounded, current may flow across the surface of the equipment. If the leakage current is large enough, it will be dangerous to cause an electric shock to humans who touch the surface. It is important that you get nen 3140 cursus or you should leave it to the professional to check it out.
In electrical equipment there is a leakage current caused by a chipped cable then this cable attaches to the body of the equipment or the condition of the cable connection is not standard, so that current flows on the surface of the equipment. Now if the equipment is connected to the grounding cable, then the leakage current will flow through the ground wire to the grounding installation. This is ideal and safe to minimize unwanted events. For electrical installations, ideally, in addition to having a good grounding installation, it must also be equipped with an ELCB and the like for leakage current protection.
An example of the connection between cables that are not properly connected, both the connection and how to isolate it. Then the connection of tension wires that are not tight on the cable terminals in the panel and so on. The condition of old cable insulation is very dangerous, especially if there are cable insulation cracks here and there. If the environment is high humidity, then the leakage current is ensured to flow on the surface of the old cable insulation. This is especially dangerous if the cable is stuck to a wall or equipment in humid conditions. The walls and surfaces of the equipment turn into semiconductors that carry the leakage current.
Surrounding environmental factors, for example, there are lizards, mice, and others that enter the panel box where the cable connection is voltage. Then the condition of the roof is damaged so that when it rains water seeps in on the panel box or voltage connection.
