A DB board must be located between 1,2m and 2,2m from the floor.

Like most electrical regulations, this height regulation is simple common sense as regards to safety. The DB should not be too low (within reach of small child) and neither should it be located too high (making it difficult for an average adult to easily reach in the event of emergency).

A modern DB board has a rated main circuit breaker of 60A receiving and distributing a voltage of 220 to 230V, an earth leakage, a surge arrestor, circuit breakers and a digital geyser timer.

Requirements             

 Ratings       Wire cross-section

  Lights        10A           1,5mm²

  Plugs        20A           2,5mm²

  Geyser      20A           2,5mm²

  Stove        35A             4mm²

  Changeover switch  6mm²

  Earthing cable           4mm²

  Surging                       4mm²

10A feeds 10 lights

20A feeds 4 room plugs

20A feeds 2 kitchen plugs

20A feeds 1 geyser

35A feeds 1 4 plate hob and an oven

Positioning/placement

– Light switches a doorbells should be       located at a maximum height of 1,2m and 1,4m from the floor level.

– Plug sockets should at least be located at

0,45m from the floor level.

– Fridge plug socket should be located at about 0,35m from the floor level.

– TV outlet should be located at least at 0,45m from the floor level.

– DB board should be located between 1,2m and 2,2m from the floor.

– A stove isolator must be located at a height not exceeding 1,2m from the floor level and a distance of 1,5m away from the cooker.-