Panel mounting

Electrical · Service Boxes · printed page 90 (PDF page 91)

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Book index entries

Mounting Mounting of Electrical Panels Panel – Mounting – Electric Electric Service – Box

Text in the illustration

in many jurisdictions, the panel support (or back-up) must be a non-combustible material such as drywall
plywood or wood planking were commonly used for panel support in older installations
panel support

Generated explanation

The illustration shows an electrical circuit-breaker panel surface-mounted on a larger backing board identified as the panel support. Cables run vertically along both sides of the backing and curve into the sides of the panel enclosure. The panel face shows a main breaker above two columns of branch-circuit breakers. Annotations explain that many jurisdictions require non-combustible backing, such as drywall, and that plywood or wood planking commonly supported panels in older installations. The backing material in the drawing is not specifically identified.

Components

electrical panel panel enclosure panel support backing main circuit breaker branch-circuit breakers electrical cables

Materials

metal panel enclosure drywall (identified as a backing option)plywood (identified as older backing)wood planking (identified as older backing)

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