Equipment must be suitable for the environment it is installed in and whilst BS 7671 does not give a distance the IET Electrician's Guide to the Building Regulations, 5 th Edition recommends a minimum of 300 mm from the edge of the sink unit to the socket outlet. BS 7671 requires that a socket-outlet on a wall or similar structure is mounted at a sufficient height above the floor or any working surface to minimize the risk of mechanical damage to the socket-outlet or to an associated plug and flexible cord during insertion, use or withdrawal of the plug. Residential: The recommended height for distribution board and consumer unit is between 1 metre to 1. 3 metres for elderly and handicapped people in the residential unit. Industrial: In an industrial building, a typical distribution board with an. Residential distribution boxes are usually smaller and built for lighter loads. On the other hand, industrial boxes are designed for high-capacity use in places like factories, warehouses, or construction sites. Also, decide between indoor and outdoor use. (a) Distribution Company Earthed System (TN-S) 108 A5.
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