CEA 4001 - Page 100

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100

Where

the

stop

valve

is

enclosed

in

a

room

with

a

door

the

sign

shall

be

fixed

on

the

outside

of

the

door,

and

a

second

sign,

bearing

the

words

«

Keep

locked

shut

»

shall

be

fixed

on

the

inside

of

the

door.

The

second sign

shall

be

circular

with

white

letters

not

less

than

5mm

high,

on

a

blue

background.

16.2.3 Control valve set

16.2.3.1 General

Where

the

sprinkler

system

comprises

more

than

one

installation

each

control

valve

set

shall

be

prominently marked

with

the

number

identifying

the

installation

it

controls.

16.2.3.2 Fully calculated installations

In

fully

calculated

installations

a

durable

notice

shall

be

fixed

to

the

rise

pipe

next

to

each

control

valve

set. The

notice

shall

include

the

following

information:

a)

the

installation

number;

b)

the

hazard

classification

or

classifications

of

the

areas

protected

by

the installation;

c)

for

each

hazard

class

area

within

an

installation:

1)

the

design

requirements

(area

of

operation

and

density

of

discharge);

2)

the

pressure-flow

requirement

at

the

'C'

gauge

or

flow

test

facilities

for

the most

unfavourable

and

most

favourable

areas

of

operation;

3)

the

pressure-flow

requirement

at

the

pump

delivery

pressure

gauge

for

the most

unfavourable

and

most

favourable

areas

of

operation;

4)

the

height

of

the

highest

sprinkler

above

the

level

of

the

'C'

gauge;

5)

the

height

difference

between

the

'C'

gauge

and

the

pump

delivery

pressure gauge.

16.2.4 Water supply connections to other services

Stop

valves

controlling

water

supplies

from

sprinkler

system

supply

pipes

or

trunk

mains

to

other

services

shall

be

appropriately

labelled;

e.g.

‘Fire fighting

hose

reels’,

‘Domestic

water

supply’

etc.

The labels

shall

have

raised

or

embossed

lettering

and

be

fixed

to

stop

valves

to

inhibit

unauthorised

removal.

16.2.5 Suction and booster pumps

16.2.5.1 Pre-calculated installations

A

nameplate

shall

be

fixed

to

each

suction

or

booster

pump,

carrying

the

following

information:

a)

the

output

pressure,

and

the

corresponding

rated

speed

and

flow

(l/min),

in

bar

at

the

inlet

condition

and

flow

rating

specified

in

table

18;

b)

the

maximum

power

absorbed

at

the

relevant

speed

at

any

value

of

flow.

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