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Question: 1 / 400

What is the rated maximum height of an electrical service mast?

8 feet above the roof line

10 feet above the roof line

The rated maximum height of an electrical service mast is 10 feet above the roof line. This specification is outlined in the National Electrical Code (NEC), which establishes safety guidelines for electrical installations.

The height requirement is crucial because it ensures that the service mast is adequately positioned for safe connection to service conductors and avoids potential hazards related to wind loading and physical damage. By limiting the height to 10 feet, the NEC provides a balance between accessibility for maintenance and safety against environmental factors.

Understanding this standard is significant for anyone working in electrical installation, as proper adherence to regulations ensures both compliance with safety codes and protection for workers and future maintenance personnel.

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12 feet above the roof line

14 feet above the roof line

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