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3 CABINETS, ENCLOSURES OR RECESSES

3 CABINETS, ENCLOSURES OR RECESSES

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AS 2419.1—1994

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5.3.5 Internal cabinets Cabinets for internal fire hydrants shall have the words ‘FIRE
HYDRANT’ or ‘FIRE HYDRANT — HOSE REEL’, as applicable, on the doors in letters not
less than 50 mm high and of contrasting colour to that of the background.

DIMENSIONS IN MILLIMETRES

FIGURE 5.1

TYPICAL HYDRANT LOCATION AND CLEARANCE

5.3.6 Doors Doors of cabinets and enclosures shall be fitted so that when open they do
not encroach on exits or inhibit access to other firefighting equipment. Fitted with a handle,
the door or doors shall be —
(a) a lift-off panel no larger than 1500 mm high by 1200 mm wide, weighing not more
than 50 kg and fitted with not less than two D-handles near the top of the panel; or
(b) side-hung swing doors with each door fitted with hinges of stainless steel or copper
alloy and a device capable of securing the door in not less than a 90° open position.
5.3.7 Fire brigade booster enclosure Except where permitted by the regulatory authority,
every fire brigade booster connection shall be installed in an enclosure or recess (see
Figure 5.2) which shall —
(a) be of sufficient size to contain all necessary equipment;
(b) permit ease of operation of the equipment;

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(c)

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(d)
(e)

AS 2419.1—1994

have any attached door —
(i)
comply with Clauses 5.3.4 or 5.3.6;
(ii)
fitted with an approved lock, if required; and
(iii) with a sign affixed to or painted on it complying with the requirements of
Clause 5.6.8;
have a block plan of the system (see Clause 2.3); and
provide for drainage of water from within cabinets, enclosures or recesses and shall be
made as follows:
(i)
Metal cabinets remote from the building shall be mounted on legs to provide
not less than 50 mm space between the bottom edge of the cabinet and the
finished surface level.
(ii)
All other cabinets, enclosures or recesses shall have a sloping floor of not less
than 75 mm from the rear of the cabinet, enclosure or recess to weep holes
(where provided) at the front.

5.4 PRESSURE GAUGES
5.4.1 Pressure gauges Installed within a fire hydrant or fire main system, pressure gauges
shall —
(a) comply with AS 1349;
(b) have a full scale reading of not less than 25% greater than the system hydrostatic test
pressure which occurred at the point where the gauge is located;
(c) be fitted with a gauge cock to permit removal, servicing or testing of the gauge; and
(d) have a dial face of not less than 65 mm diameter.
5.4.2 Location of pressure gauges Pressure gauges protected from mechanical damage
or vandalism, or both, where appropriate, shall be installed within a fire hydrant system as
follows:
(a) For all installations —
(i)
on the suction and delivery side of any booster pump;
(ii)
adjacent to any fire brigade booster connection (to indicate mains or installation
pressure, or both);
(iii) on the delivery side of any pressure maintenance pump; and
(iv)
at each pressure switch.
(b) For low-rise installations, at the hydrant with the least hydraulic head in any
installation with more than six hydrants.
(c) For high-rise installations —
(i)
at the hydrant with the least hydraulic head in any pressure zone; and
(ii)
immediately upstream and downstream of any pressure-reducing valve.
5.5 PUMPED HYDRANT SYSTEMS
5.5.1 General Installed pumpsets shall comply with AS 2941.
5.5.2 Controllers In addition to the requirements of AS 2941, the following provisions
shall apply:
(a) Manual stop facilities remote from the controller shall not be provided without
regulatory authority approval.
(b) Other modes of pump starting may be approved by the regulatory authority.
(c) The requirements for automatic pump start may be waived by the regulatory authority
subject to its evaluation and approval.

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(i) Cabinet with doors closed

(ii) Cabinet with doors open
(a) With cabinet

DIMENSIONS IN MILLIMETRES

FIGURE 5.2 (in part)

TYPICAL BOOSTER ARRANGEMENT DETAILS

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AS 2419.1—1994

(b) Without cabinet

DIMENSIONS IN MILLIMETRES

FIGURE 5.2 (in part)

TYPICAL BOOSTER ARRANGEMENT DETAILS

5.5.3 Pumpsets Where an on-site pumpset is provided to achieve water supply
requirements for the installed system, it shall comply with AS 2941. Pumps drawing water
from pump suction tanks shall have performance characteristics complying with the
requirements given in AS 2941.
NOTES:
1 Information on the number of pumpsets provided on any installation may be found in
Appendix D, Part E, of the Building Code of Australia and AS 2118.
2 Subject to the approval of the regulatory authority, a single pumpset or other power source
including independent electric power supplies, may be considered acceptable on the basis of
full details being submitted.

5.5.4 Electric driver isolating switches Switches in circuits supplying the driver shall be
locked ‘ON’ and clearly labelled ‘FIRE HYDRANT PUMP — DO NOT SWITCH OFF’. This
requirement does not apply to the separate main switches provided in accordance with
AS 3000.
5.6 FIRE BRIGADE BOOSTER CONNECTION
5.6.1 General Fire brigade booster connections shall be installed on systems where the
following conditions apply:
(a) Incorporating pumps, suction tanks or elevated storage provided in accordance with
Clauses 4.5.3.2 and 4.5.4.
(b) Where required in accordance with Clause 4.3.1.2.

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(c) When serving a building where the floor area of any fire compartment exceeds 2000 m2.
(d) Where two or more internal hydrants are installed.
The distance between feed hydrants and booster inlets shall be in accordance with Figure 5.2
and the measurements shall be taken from the centre-line of the feed hydrant outlet to the
centre-line of the closest booster inlet.
The installed position of feed hydrants and booster inlets, relative to each other, shall be such
that hoses connected to every inlet and outlet shall not cause interference one with the other.
For operational efficiency, all inlet and outlet connections to feed hydrants and boosters shall
be located within 150 mm of the cabinet or enclosure doors or the front plane of any recess.
The number of booster inlets shall be calculated at the rate of not more than 10 L/s per inlet
to meet system design requirements.
The number of feed hydrants (suction outlets) for the booster shall be equal to the number
of booster inlets.
Where the number of inlets exceeds eight, additional booster locations shall be provided so
that when operated simultaneously, the combined capacity of the boosters are capable of
supplying the total required flow rate.

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NOTE: Where boosting is required on the suction side of a pump, care should be taken in
specifying the maximum pressure on the pump casing, seals and hydrant pipework.

5.6.2 Metering of authority supply Where the regulatory authority requires metering of
water used for fire protection, in-line meters shall not be installed.
NOTE: The preferred method is a metered bypass across a check valve.

5.6.3 Location Fire authority booster connections shall be located so that they meet the
following requirements:
(a) Readily accessible to fire authority personnel.
(b) Operable by fire authority appliances located within 8 m or such other distance as
approved by the local fire authority.
(c) Within, or affixed to, the external wall of the building, and —
(i)
within sight of the main entrance to the building; and
(ii)
separated from the building by a construction with a fire resistance rating of not
less than FRL 90/90/90 for a distance of not less than 2 m each side of and 3 m
above the upper hose connections in the booster assembly.
(d) Remote from the building and —
(i)
at the boundary of the site;
(ii)
adjacent to the principal vehicular access to the site;
(iii) located not less than 10 m from the external wall of any building; and
(iv)
within sight of the main entrance of the building.
(e) In a position approved by the regulatory authority which satisfies the operational
requirements of the fire service.
(f)
The height of the booster inlet is not less than 750 mm and not more than 1200 mm
from the finished surface, subject to the following:
(i)
Where more than four connections are provided, the lowest may be located
600 mm above the finished surface level.
(ii)
Any tank suction connections greater than 65 mm incorporated within the
booster assembly shall be located at a height between 450 mm and 600 mm
above the finished surface level.
5.6.4 Booster inlet connection Each inlet connection shall have a nominal bore of 65 mm
and permit a fire main to be pressurized without the need to operate valves manually, and
shall be fitted with —

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AS 2419.1—1994

Licensed to LUU MINH LUAN on 25 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

(a)

a full-way non-return valve installed above ground adjacent to the isolating valve and
before the booster inlets;
(b) isolating valves provided and installed above ground adjacent to the non-return valve
and before the booster inlets;
(c) all isolating valve handwheels shall be at a height between 100 mm and 1800 mm
above the finished surface level;
(d) approved hose connections equipped with non-ferrous caps and chains where no
enclosure is provided;
(e) a bleed valve, which shall drain to a suitable visible place for the purpose of relieving
pressure on the pipe between the non-return valve and the hose connection;
(f)
any other fittings required by the regulatory authority; and
(g) an arrow welded onto the surface of the pipe to indicate the direction of water flow
through the assembly where the fire main passes through a booster.
5.6.5 Booster assembly back pressure Where a booster assembly is connected to —
(a) a fire system which has the highest hydrant outlet more than 5 m above the lowest
booster inlet, or
(b) a system which has additional water supply connections,
additional valves shall be fitted which will isolate the booster inlets from the system.
5.6.6 Booster supply hydrants Where additional hydrants for boosting purposes are required,
they shall be located in accordance with the requirements of the regulatory authority.
5.6.7 Notice of pressure A fade-resistant engraved sign shall be fixed either in a
prominent position within the cabinet or, where there is no cabinet, on the assembly. The
following wording shall be marked on the sign in upper case lettering not less than 25 mm
high and in a colour contrasting with that of the background:
WORKING PRESSURE (*) kPa
SYSTEM TESTED to (*) kPa
NOTE: Other planned information shall be displayed adjacent to the booster or within the cabinet,
if provided, in accordance with Clause 2.3.

5.6.8 Marking Fire brigade booster connections shall be marked by a fade-resistant sign
with the words ‘HYDRANT BOOSTER’, ‘HYDRANT AND SPRINKLER BOOSTER’ or
‘COMBINED HYDRANT AND SPRINKLER BOOSTER’ in letters not less than 50 mm high
and in a colour contrasting with that of the background.
Adjacent to the connection, the highest test pressure withstood by the hydrant system, or the
minimum prescribed value of 1700 kPa, shall be clearly marked.
Where an enclosure contains fire hydrant outlets in addition to the inlet connections, ‘FH’
shall be marked within a circular line of inside diameter 100 mm, of the same thickness and
colour as the lettering. See Figure 5.2 for further information.
5.7 BOOSTERS IN SERIES (RELAY) WITH PUMPS Where the booster is connected
in series with the building fire pumps, the following additional provisions shall be made:
(a)

A full flow rate bypass with non-return valve, of equal diameter to that of the incoming
fire main, shall be connected between the pump suction and pump discharge
pipe/manifold.

(b)

A 150 mm diameter pressure gauge, which will indicate the pressure in the pump
discharge pipe/manifold, shall be located in the booster.

(c)

An engraved sign shall be affixed adjacent to the pressure gauge and comprise lettering
of a contrasting colour to that of the background, and of the wording given in
Figure 5.3.

* Insert the appropriate pressures on the sign.
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5.8 INTERNAL BOOSTER CONNECTION FOR PORTABLE RELAY PUMPS An
internal booster connection for portable relay pumps shall be installed, as required by the
regulatory authority, in accordance with Figure 5.4.

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5.9 BACK-FLOW PREVENTION Back-flow prevention devices shall comply with the
requirements of AS 2845.1. Where the water supply authority requires a back-flow prevention
device to be installed in a mains feed system, which incorporates a booster connection, it
shall be with its approval, located between hydrants which supply the booster and the booster
inlet connections.

FIGURE 5.3

TYPICAL WARNING LABEL

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AS 2419.1—1994

NOTE: Clearance dimensions for hydrant and valve operation as shown in Figure 5.1.
DIMENSIONS IN MILLIMETRES

FIGURE 5.4

CONNECTIONS FOR A PORTABLE RELAY PUMP

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AS 2419.1—1994

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S E C T I O N

6

P I P I N G ,

V A L V E S ,

A N D

F I T T I N G S
6.1 GENERAL Pipes, valves and fittings used in fire hydrant systems shall be joined by
either screwed, grooved, shouldered or flanged ends, approved by the regulatory authority and
complying with the requirements of this Section. All couplings and connections shall be
compatible with the equipment carried by the attending fire authority.
Where mechanical grooved couplings comprising an approved combination of couplings,
gaskets and grooves are used, the grooves shall not be cut in pipes and rolled grooves shall
be dimensional compatible with couplings.
When the coupling is assembled, gaskets shall be fully enclosed within the housing of the
coupling.
The test pressure of the fire hydrant system shall be at least 1700 kPa.

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Where a booster connection is installed, the working pressure required shall be at least that
supplied by the fire authority, when operating the most hydraulically-disadvantaged hydrant
at a pressure compatible with the fire attack equipment connected to it.
Fire hydrant systems shall also accommodate fluctuations in pressure created by a system
pump start and any other operating characteristic envisaged, e.g. stopping a hydrant flow of
10 L/s within a period of 3 s (achieved by firefighters closing down the flow at the
firefighting tip).
NOTE: Where copper pipe is installed, the regulatory authority may marginally upgrade its working
pressure limitations, if the installation is normally maintained at a pressure below the rated working
pressure of the pipe.

This dispensation may be given on the grounds that the working pressure for copper pipe is
based upon a satisfactory operating performance for many decades, whereas its use for fire
fighting at elevated pressures will be limited to a matter of hours.
A similar dispensation may also be given for pipe thread connections.
For further details of required system commissioning tests, refer to Section 7.
6.2

PIPE AND PIPE FITTING SPECIFICATIONS

6.2.1 Above-ground pipes Pipes and pipe fittings used above ground in hydrant
installations shall be installed in accordance with AS 3500 and comply with one of the
appropriate Australian Standards as follows:
(a)

Steel tube and pipes — AS 1074, AS 1579, AS 1769, AS 4041, AS 4118.2.1.

(b)

Ductile iron pipes — AS 2280.

(c)

Cast iron fittings — AS 1724 and AS 2544.

(d)

Copper tubes — AS 1432 and AS 1572.
Copper tubes shall have a wall thickness not less than the sizes stated in AS 1432 for
Type B material.

(e)

Wrought steel fittings—AS 3672.

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AS 2419.1—1994

Licensed to LUU MINH LUAN on 25 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

6.2.2 Underground pipes Pipes and pipe fittings used underground in hydrant installations
shall comply with one of the appropriate Australian Standards as follows:
(a) Steel tube and pipes — AS 1074, AS 1579, AS 1769, AS 4118.2.1, BS 3059.2 and
BS 3604.
(b) Ductile iron pipes — AS 2280.
(c) Cast iron fittings — AS 1724 and AS 2544.
(d) Wrought steel fittings—AS 3672.
(e) Copper tubes — AS 1432 and AS 1572.
Copper tubes shall have a wall thickness not less than the sizes stated in AS 1432 for
Type B material.
(f)
Plastics pipe and fittings — AS 1159, AS 2977 Parts 1, 2, and 3 and AS 1477, Parts 1,
2, 4 and 6.
All pipes shall be laid in accordance with the provisions of AS 3500 and the methods
described in AS 2032.
Ductile iron pipes complying with AS 2280, and cast iron fittings complying with AS 1724
and AS 2544, shall be coated and cement mortar lined in accordance with AS 1281 and
AS 1516 where required by the local water supply authority.
Unplasticized polyvinyl chloride (UPVC) and polyethylene pipe (PE) shall be laid in
accordance with AS 2032 and AS 2033, respectively.
NOTE: Some water supply authorities in some circumstances may not approve the use of plastic
pipes or certain steel pipes.

6.3

SYSTEM PROTECTION AND IDENTIFICATION

6.3.1 Physical protection Hydrant pipework, whether above ground or underground, shall
not be laid in locations or positions where it is likely to be subjected to physical damage, e.g.
vehicular traffic and soil movements, unless specially protected.
6.3.2 Corrosion protection Protection against corrosion shall be provided wherever
necessary. Particular attention shall be given to outside and underground locations or to any
piping which passes through or is embedded in any material likely to induce corrosion,
including electrically-induced corrosion. For further information, refer to AS 2312.
6.3.3 Pipework identification Hydrant pipework shall be identified in accordance with
AS 1345.
6.4

PIPE JOINTS AND GASKETS

6.4.1 Approval Joints in piping shall be approved by the regulatory authority or the local
water supply authority.
6.4.2 Gaskets Gaskets used in conjunction with flanged or grooved couplings shall be
suitable for continuous service in both air and water in the temperature range −20°C to
110°C, and shall be pliable, smooth and free of obvious surface porosity and mould flash.
6.4.3
6.5

Copper pipework

No soft solder shall be used in jointing copper pipe.

VALVES

6.5.1 Hydrant valves Hydrant valves shall have a nominal bore of 65 mm diameter and
have their outlets fitted with approved hose connections and be equipped with standard caps.
The valves shall comply with AS 2419.2.
6.5.2 Above-ground isolating valves Isolating valves installed above ground shall be
full-flow outside screw and yoke wheel gate valves complying with AS 3579 or approved
butterfly valves closed by rotating the wheel clockwise, and —
(a)

be secured in the open position by a means approved by the regulatory authority;
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AS 2419.1—1994

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(b)

have affixed to the valve body or strap a plate inscribed with the words ‘FIRE MAIN
VALVE — SECURE OPEN’ in uppercase letters not less than 8 mm high; and

(c)

where monitored, shall comply with Clause 4.4.5.

6.5.3

Below-ground isolating valves Isolating valves installed below ground shall —

(a)

conform with Clause 6.5.2 and be located in a fully drained pit; or

(b)

be key-operated sluice valves complying with AS 2638 (see Figure 6.1).

If isolating valves, installed below ground, do not comply with Items (a) and (b), they shall
be of a type approved by the regulatory authority.
6.5.4 Pressure-reducing valves Where pressure-reducing valves are used to achieve the
required pressure limits, the valves shall be duplicated at each location, unless otherwise
approved by the regulatory authority, to permit removal of either valve for servicing.

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Where permitted, pressure-reducing valves shall be of the type in which the controlling
mechanism is operated —
(a)

from the low pressure side; or

(b)

by the differential pressure across the valve; and

(c)

in conjunction with water flow through the valve.

When the direction of water flow is reversed during the fire authority boosting, a full flow
bypass check valve shall be installed in the pressure-reducing station.

FIGURE 6.1

TYPICAL KEY-OPERATED SLUICE VALVE UNDERGROUND

6.5.5 Hose reel valves Where fire hose reels are connected to a fire hydrant system
(except in buildings equipped with a fire sprinkler system in accordance with AS 2118) and
served by a fire hose reel main with a nominal bore greater than 25 mm, then the fire hose
reel main shall be fitted with an isolating valve at the connection point into the fire hydrant
system.

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