CEA 4001 - Page 27

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27

e)

the

location

and

size

of

concealed

roof

or

ceiling

voids

,

,

offices

and

other

enclosures

sealed

at

a

level

lower

than

the

roof

or

ceiling

proper;

f)

indication

of

trunking,

stagings,

platforms,

machinery,

light

fittings,

heaters,

suspended

open

cell

ceilings

etc.

which

may

adversely

affect

the

sprinkler

distribution;

g)

the

sprinkler

type(s)

and

temperature

rating(s);

h)

the

type

and

approximate

location

of

pipe

supports;

i)

the

location

and

type

of

control

valve

sets

and

location

of

water

motor

alarms;

j)

the

location

and

details

of

any

water

flow,

and

air

or

water

pressure

alarm

switches;

k)

the

location

and

size

of

any

subsidiary

valves,

subsidiary

stop

valves

and

drain

valves;

1)

the

drainage

slope

of

the

pipework;

m)

a

schedule

listing

the

numbers

of

sprinklers

and

the

area

of

protection;

n)

the

location

of

all

test

valves;

o)

the

location

and

details

of

any

alarm

panel;

p)

the

location

and

details

of

any

fire

department

inlet

connections;

q)

a

key

to

the

symbols

used.

NOTE:

details

of

other

services

should

not

appear

on

sprinkler

drawings

except

insofar

as

they

are

necessary

for

the

correct

installation

of

the

sprinkler

system.

3.4.3.2 Pre-calculated pipework

For

pre-calculated

pipework

the

following

details

shall

be

given

on,

or

with,

the

drawings:

a)

identification

of

the

design

point

of

each

array

on

the

layout

drawing

(for

example,

as

in

Figure

H4);

b)

a

summary

of

the

pressure

losses

between

the

control

valve

set

and

the

design

points

at

the

following

design

rates

of

flow:

1)

in

an

LH

installation

2251/min;

2)

in

an

OH

installation

10001/min;

3)

in

an

HH

installation

the

low

corresponding

to

th

design

density

given

in

Table

8;

c)

the

calculation

as

specified

in

G.2,

showing

that:

1)

in

LH

and

OH

installations,

for

each

run

of

distribution

pipework;

p

f

-

p

h

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