Code of Practice for the Electricity (Wiring) Regulations - 2009 Edition

• The height from the floor is at least 2m above the lower limit
of Zone 1.
(vii) In addition, every luminaire should have an enclosure providing
Class II or equivalent insulation and providing protection against
mechanical impact of medium severity.
(6) Fountains
(a) In Zones 0 and 1 of fountains, one or more of the following
protective measures should be employed:
(i) SELV, the source for SELV being installed outside Zones 0
and 1;
(ii) Automatic disconnection of supply, using an RCD having the
characteristics specified in Code 11J;
(iii) Electrical separation, the source for electrical separation
supplying only one item of current using equipment and being
installed outside Zones 0 and 1.
(b) For a fountain, the following additional requirements should be met:
(i) A cable for electrical equipment in Zone 0 should be installed as
far outside the basin rim as is reasonably practicable and run to
the electrical equipment inside Zone 0 by the shortest
practicable route;
(ii) In Zone 1, a cable should be selected, installed and provided
with mechanical protection to medium severity (AG2) and the
relevant submersion in water depth (AD8). The cable type to BS
7919 is suitable up to a depth of 10m of water. For depths of
water greater than 10m the cable manufacturer should be
consulted;
(iii) Electrical equipment in Zones 0 or 1 should be provided with
mechanical protection to medium severity (AG2), e.g. by use of
mesh glass or by grids which can only be removed by the use of
a tool;
(iv) A luminaire installed in Zones 0 or 1 should be fixed and should
comply with BS EN 60598-2-18.
(v) An electric pump should comply with the requirements of BS EN
60335-2-41.
26N Installation in Restrictive Conductive Locations
(1) Scope
The particular requirements of this Code should apply to installations
within or intended to supply equipment or appliances to be used within
a Restrictive Conductive Location. They do not apply to any location in
which freedom of movement is not physically constrained.
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