LIGHTING
them easily accessible for relamping or Swimming pool ambiance can be Roof lights and windows provide a natural
maintenance. Where this is not possible, greatly enhanced by the use of under- feature for Corby Swimming pool
the fittings should be accessed from a water lighting with the benefit that it
service gantry. The fittings, all associated improves the appearance of the pool Televised events have much higher
brackets and cable trunking need to be and the pool hall – especially at night. lighting requirements than generally
designed to resist the high temperatures Lighting in the pool improves visibility required for day-to-day use. Typically,
and humidity that form the potentially below water level and illuminates lighting for conventional TV cameras
corrosive atmosphere typical in a swim- underwater swimmers to improve require 1,400-1,500 lux. However, high
ming pool hall environment. safety within the pool. definition digital TV cameras are likely
Materials used in construction should Swimming and diving pools frequently to require in excess of 2,000 lux to
be carefully considered and bare metal include moveable floors, so the posi- achieve picture quality. Whether such
components in mild steel or stainless tioning of the light fittings relative to requirements justify permanent lighting
steel should be avoided due to corrosion both water level and the depths that the or provision for additional temporary
risks in a pool environment. moveable floor will be commonly set at lighting will depend on the frequency
Fittings should be fully enclosed and must be accounted for. and scale of the event. If the broadcast
have a high Ingress Protection (IP) rating Underwater lighting should only be lighting is to be temporary, it will still be
(at least IP54) that demonstrates that it installed in the side walls of the pool necessary to allow for the ingenious po-
is able to effectively resist the entry of tank and not aligned with the swimming sitioning of cameras to cover the event
moisture. The most suitable fittings are lanes; however, underwater lighting while making sure the risk of glare or sil-
houette is kept to a minimum.
Temporary lighting will need to be
Pool ambiance can be enhanced by underwater lighting
safely integrated and installed alongside
which improves the appearance of the pool and safety
the permanent lighting – accounting for
additional power supply, safe cabling
routes and provision for operational
fluorescent or discharge fittings, as low may be switched off during competitive control systems. The lighting required
wattage fittings are unlikely to achieve swimming, diving and water polo. for broadcast will involve either tempo-
the overall lighting needs economically. rary power supply or substantial surplus
The factors that determine the selection Meeting sport lighting provision within the existing electrical
of a particular type of discharge fitting requirements infrastructure to meet the additional de-
include illumination performance, lamp Lighting proposals should take into ac- mands. The additional heat generated by
life and energy efficiency. The colour count the recommendations of the CIBSE the lighting will also need to be account-
rendering of the lamps will also deter- Lighting Guide LG4: Sports Lighting, ed for in the temperature and ventilation
mine the visual comfort and ambiance which gives both general and specific control systems of the swimming pool
for bathers, spectators and staff. advice for swimming pools. hall. For the highest profile sporting
For larger projects, consultation National and international sports events where the television images is
with lighting consultants or specialist governing bodies for swimming have broadcast around the globe, the competi-
lighting companies may be required their own minimum requirements for tion venue may be effectively blacked out
to enable accurate computer modelling lighting for competitive swimming. FINA, and all lighting controlled to enhance the
of the space in order to establish opti- for example, requires a minimum of 600 theatrical experience for all. ●
mum illumination, and these may have lux at pool ends which increases to 1,500
their own impact on the design of the lux over the whole pool for Olympic Mark Thomas is associate director
pool space itself. or World swimming events. at S&P Architects
66 Read Sports Management online
sportsmanagement.co.uk/digital Issue 1 2010 © cybertrek 2010
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