What is the minimum height above floor or working surface for equipment located in restricted access areas for qualified persons?

The minimum height above the floor or working surface for equipment located in restricted access areas for qualified persons is set at 8 feet. This standard helps ensure that equipment is installed in a manner that reduces the risk of accidental contact or interference, especially in areas where access is limited to those who are trained and qualified to handle electrical systems. Maintaining a height of 8 feet provides an adequate clearance that balances safety with operational accessibility for qualified personnel, allowing them to perform their duties without undue risk of hazards associated with the equipment.

Other heights listed, while they may be applicable in different contexts or for specific equipment types or installations, do not align with the standard minimum height requirement specified for restricted access areas. Keeping equipment at this designated height helps to conform to industry safety standards and regulations set forth by the National Electrical Code (NEC) and other relevant safety organizations.