Special Installations

Part 7, sections 700 to 712,717,721,740,753

A number of special locations are detailed which have further requirements than listed in the general 17th edition. They vary from a location containing a bath or shower, to floor and ceiling heating systems.

Residential Requirements

Example
In areas that can have an extra risk for people, additional protection will be required, generally in the form of residual current devices. However other means can be employed in certain instances.

What it means
In any location which contains a bath or shower, sauna or swimming pool, the effects of electric shock on a person could well be magnified by up to 25%, so additional protection is required in these locations.

Solution
Supplies into these locations should be protected by 30mA residual current devices, either RCCB or RCBO and must be circuits arranged to minimise the effects on other circuits if devices operates.


Supporting Products
Residual Current Protection Devices

Commercial Requirements

Example
In areas which can have an extra risk for people additional protection will be required, generally in the form of residual current devices. However other means can be employed in certain instances.

What it means
The same measures for residential apply to the commercial market. If there is an extra risk to persons, then additional protection must be employed, for instance in agricultural premises.

Solution
Part 7 will detail the sensitivity of additional protection for the various locations which include construction or demolition sites, marinas and exhibitions. Circuits should be arranged to minimise disruption in the event of a fault operating a protection device.

Supporting Products
Residual Current Protection Devices