CEA 4001 - Housing of Equipment for Water Supplies; Test Facility Devices; Pressure;Flow Tests on Water Supplies; Water Supply Pressure Test

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c) if the system is not a high rise system; and
d) if the system is not protecting a multi-storey building.
The sprinkler system pumps shall be separate from any hydrant system pumps unless a properly designed
combined
water supply is used (see 8.6.4).
7.3 Housing of equipment for water supplies
Water supply equipment, such as pumps, pressure tanks and gravity tanks, shall not be housed in buildings or
sections
of premises in which there are hazardous processes or explosion hazards.
7.4 Test facility devices
Sprinkler installations shall be permanently provided with suitable devices for measuring pressure and flow for
checking compliance with clauses 6.3 and 9.
7.4.1 At control valve sets
A now measuring device shall be installed at each control valve set except in the following cases:
a) where two or more control valve sets are installed together, the device need be installed only
at
the hydraulically most remote set, or, when the installations belong to different hazard
classes,
at the control valve set which requires the highest water flow;
b) where the water supply is by an automatic pump or pumps, the flow measuring device may be
installed at the pumphouse.
In all cases, the appropriate allowance must be made for the pressure losses between the water source and the
control
valve set(s) using the calculation methods specified in G.1.
Adequate facilities shall be provided for the disposal of test water.
NOTE: dry or alternate control valve sets (main or subsidiary) may have an additional flow test valve
arrangement
of unspecified flow loss characteristic fitted below the control valve set, downstream
of the main stop valve, to facilitate informal supply pressure testing. Such flow test valves and
pipework
should have a nominal diameter of 40 mm for LH installations and of 50 mm for other
installations.
7.4.2 At water supplies
At least one suitable flow and pressure measuring arrangement shall be permanently installed and shall be
capable
of checking each water supply.
The testing apparatus shall be of adequate capacity and shall be installed in accordance with
the manufacturer's instructions. Care shall be taken with the distance from valves and fittings. The
apparatus shall be installed in a frost-proof area.
7.5 Pressure/flow tests on water supplies
For both precalculated and fully calculated installations, the water supply shall be tested at least at the
installation
maximum flow demand (Q max).
7.6 Water supply pressure test