All about structural earthing system
The metallic structure used to carry the current will be first hit by lightning or faulty current whenever there is a power outbreak, or a fault occurring in the equipment attached to the structure. Thus, the structure needs to be protected. The structure is required to have a low-impedance path to the grounding system so that the faulty current can be transferred safely to the ground within seconds. Thus, structural earthing is preferred for non-electrical equipment. A conventional earthing is an independent system where a dedicated earthing conductor is connected between the metallic structure and electrical equipment to the earth pit. The size of the earthing conductor depends upon the magnitude of the current flowing. The pros and cons of structural earthing. Pros: • Structural earthing is quite economical and it doesn’t involve any dedicated earthing. • It is easy to maintain. • Structural earthing has a good life span and it doesn’t have a...