The blank part of the line also needs to be grounded for protection. The main purpose of grounding is to ensure personal safety and the normal operation of equipment. Although the blank part of the circuit does not directly carry current, grounding can prevent insulation damage of electrical equipment or electric shock accidents caused by personnel accidentally touching live parts, reduce the failure rate of electrical equipment, improve the reliability of equipment operation, suppress electromagnetic interference in the electrical system, and improve system stability.
Basic concepts and importance of grounding protection
Grounding refers to connecting the metal casing or other conductive parts of electrical equipment to the ground to form a low impedance conductive path, ensuring that current can safely flow into the ground and avoiding damage to personnel and equipment. Grounding can reduce the failure rate of electrical equipment, improve the operational reliability of equipment, suppress electromagnetic interference, and enhance system stability.