What is the required working space for access to live parts of equipment operating at 300V to ground, where there are exposed live parts on one side and grounded parts on the other side?

The required working space for access to live parts of equipment operating at 300 volts to ground is specifically outlined in the National Electrical Code (NEC). When there are exposed live parts on one side and grounded parts on the other side, the NEC mandates a working space of 3.5 feet.

The reasoning behind this requirement is based on safety standards designed to protect workers from electrical shock hazards. This space ensures that individuals can work safely without the risk of coming into contact with live conductors or components while maintaining a sufficient distance from grounded surfaces.

In terms of implementation, the 3.5 feet working space allows for adequate room for tools and personnel while performing maintenance or inspections on electrical equipment. This requirement is crucial to prevent electrical accidents that could occur if the working space were too limited, leading to potential contact with live parts.

Understanding these specifications is essential for ensuring compliance with safety regulations and for providing a safe work environment when dealing with electrical installations.