CEA 4001 - Page 103

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out under contract by the system installer or a similarly qualified company.
After an inspection, check, test service or maintenance procedure the system, and any automatic
pumps, pressure tanks and gravity tanks shall be returned to the proper operational condition.
NOTE : if appropriate, the user should notify interested parties of the intent to carry out tests and/or
of the results.
18.1.2 Replacement sprinklers
A stock of spare sprinklers shall be kept on the premises as replacements for operated or damaged
sprinklers. Spare sprinklers, together with sprinkler spanners as supplied by the manufacturer, shall
be housed in a cabinet or cabinets located in a prominent and easily accessible position where
ambient temperature does not exceed 38°C.
The number of the spare sprinklers shall be not less than:
a) 6 for LH installations;
b) 24 for OH installations;
c) 36 for HHP and HHS installations.
The stock shall be replenished promptly after spares are used.
Where installations contain high-temperature sprinklers, sidewall or other variations of sprinkler pattern
or contain multiple controls, an adequate number o these spares shall also be maintained.
18.1.3 Precautions and procedures when a system is not fully operational
18.1.3.1 Minimising the effects
Maintenance, alterations and repair of systems which are note fully operational shall be carried out such
as to minimize the time and extent of non-operation.
When an installation is rendered inoperative the user shall implement the following measures:
a) the fire authorities shall be informed if the alarm is connected to the fire brigade;
b) alterations and repairs to an installation or its water supply (except possibly a life
safety installation (see Annex F) shall be carried out during normal working hours;
c) any hot work shall be subject to a permit system. Smoking and naked lights shall be prohibited
in affected areas during the progress of the work;
d) when an installation remains inoperative outside working hours all fire doors and fire shutters
shall remain closed;
e) fire extinguishing appliances shall be kept readiness, with trained personnel available to
handle them;
f) as much as possible of the installation shall be retained in an operative condition by blanking