CEA 4001 - Page 18

190 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

18

The

sprinkler

system

shall

be

periodically

inspected

at

least

once

a

year

by

the

authorities’

inspector.

The

inspection

report

shall

confirm

that

the

system

is

in

accordance

with

the

rules,

well

maintained

and

in full

working

order.

Any

faults

and

deficiencies

shall

be

noted

in

the

inspection

report

and

the

authorities shall

specify

the

time

limits

for

rectification.

1.4.3.2 Long-term Reliability Inspection

The

pipes

and

the

sprinkler’s

heads

shall

be

inspected

in

great

detail

at

least

every

25

years

for

wet

installations

and

15

years

for

dry

or

alternate

installations.

1.4.3.2.1. Pipes

The

pipework

shall

be

internally

and

externally

inspected.

At

least

one

range

pipe

shall

be

inspected

per

100

sprinklers

over

an

appropriate

length.

Not

less

than

two-range

pipe

lengths

per

control

valve

set

shall

be

examined.

Other

pipes

shall

be

inspected

if

the

range

pipe

examined

exhibits

an

unacceptable

level

of

corrosion

or

tuberculation.

The

pipework

shall

be

hydrostatically

tested

to

a

pressure

equal

to

the

maximum

static

pressure

or

12

bar, whichever

is

the

higher

pressure

for

a

period

of

2

hours

and,

where

possible,

the

pipe

work

shall

be thoroughly

flushed

out.

All

defects

which

can

adversely

affect

the

hydraulic

performance

of

the

system

shall

be

eliminated.

The

national

authorities

shall

evaluate

the

pipe

defects.

1.4.3.2.2 Sprinklers

A

number

of

sprinklers

shall

be

removed

and

inspected.

Table

1

specifies

the

scope

of

sampling

as

a

function

of

the

total

number

of

sprinklers

installed

in

the

premises.

T

Table 1 :Minimum number of sprinklers per type to be inspected

Total

number

of

sprinklers

installed

(n)

Minimum

number

of

sprinklers

to

be inspected

(batch)

n

<

5000

20

5000

<

n

<

10000

40

10000

<

n

<

20000

60

20000

<

n

<

30000

80

n

>

30000

100

Sprinklers

removed

for

inspection

shall

be

visually

inspected:

The

following

tests

shall

be

carried

out

on

samples

selected

from

the

batch

of

sprinklers:

•

Operating

temperature;

•

Function

and

minimum

operating

pressure;

•

Leak

resistance;

•

K

factor;

And

where

appropriate:

Table of Contents