Distance Requirements: Maintain a minimum clearance of 1. 0 meter from all accessible faces of a switchboard. Ensuring proper switchboard clearances is crucial for maintaining safety and functionality in electrical installations. Switchboards must be located and installed with adequate space, ventilation, and accessibility to prevent overheating, facilitate easy maintenance, and ensure safe emergency. The main distribution box (or distribution room) shall be set up. The main distribution box shall be. These requirements vary depending on whether the electrical equipment is rated at (1) 1,000 volts or less (See, Article #2) or (2) over 1,000 volts. Minimum clearances in front of electrical equipment (600 V (now 10000 V) or. (3) Power distribution from tertiary switch boxes to electrical equipment must follow the “one machine, one switch” principle, with no branching allowed.
