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2 SWIMMING POOLS, PADDLING POOLS AND SPA POOLS OR TUBS

2 SWIMMING POOLS, PADDLING POOLS AND SPA POOLS OR TUBS

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182

AS/NZS 3000:2000

A spa pool that is attached to a swimming or paddling pool shall be
considered to be an extension to the swimming or paddling pool.
7.2.2.2.2 Water capacity exceeding 5000 L
The requirements for spa pools or tubs with a capacity exceeding 5000 L
are based on the dimensions of the three zones set out in Clause 7.2.2
(examples are given in Figures 7.2A and 7.2B).
7.2.2.2.3 Water capacity not exceeding 5000 L

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The requirements for spa pools or tubs with a capacity up to and including
5000 L are based on the dimensions of the following two zones (examples
are given in Figure 7.2C):
(a)

Zone 0 shall be the area of the interior of the water container.

(b)

Zone 1 shall be the area limited by the —
(i)

vertical plane 1.0 m from the internal rim of the water container;
and

(ii)

floor, or the surface expected to be occupied by persons, and the
horizontal plane 2.50 m above the floor or surface.

NOTE: The dimensions of Zone 1 may be reduced by the installation of suitable
barriers.

7.2.3 Protection against electric shock
7.2.3.1 Prohibited measures
The following measures of protection against electric shock shall be
prohibited:
(a)

Protection by means of obstacles in accordance with Clause 1.7.3.5.

(b)

Protection by placing out of reach in accordance with Clause 1.7.3.6.

7.2.3.2 Supplementary equipotential bonding
Local supplementary equipotential bonding shall connect all extraneous
conductive parts in Zones 0, 1 and 2 by means of equipotential bonding
conductors to all exposed conductive parts situated in these zones in
accordance with Clauses 5.8.2.5 and 5.8.3.
7.2.3.3 Voltage gradients
Where electrical equipment is in contact with pool water, a hazard to
persons within the pool may arise where electrical equipment failure would
cause a hazardous voltage to be transferred to the pool.
Protective measures may include —
(a)

location of the electrical equipment at a distance from the pool with all
connections being made of non-conductive materials; or

(b)

metal grids or barriers inserted in any connections between the
electrical equipment and pool and included as part of the local
supplementary equipotential bonding system; or
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(c)

AS/NZS 3000:2000

use of a residual current device with a maximum rated residual current
of 30 mA to protect circuits supplying Class I equipment.

7.2.4 Selection and installation of electrical equipment
7.2.4.1 Degree of protection required
Electrical equipment permitted to be installed in a classified zone shall have
at least the following degrees of protection:
(a)

Zone 0: IPX8.

(b)

Zone 1: IPX5.

(c)

Zone 2: IPX4.

7.2.4.2 Wiring systems

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Wiring systems shall be installed so as to prevent —
(a)

entry of moisture to any connection; and

(b)

water siphoning through any wiring enclosure or cable.

Bare aerial conductors shall not be installed over Zones 0, 1 or 2. Other
types of aerial cables shall be installed in accordance with Clause 3.12.
7.2.4.3

Socket-outlets

The following conditions shall apply to the installation of socket-outlets in
classified zones:
(a)

In Zone 0, socket-outlets shall not be permitted.

(b)

In Zone 1, socket-outlets installed for the connection of pool
equipment shall be permitted where —
(i)

protected to the required degree of protection; and

(ii)

located —
(A) at a height not less than 0.45 m above ground level and at a
horizontal distance not less than 1.25 m from the internal rim
of the water container; or
(B) beneath and not less than 0.5 m from the edge of a fixed
continuous horizontal barrier which is not less than 1.25 m
wide measured from the internal rim of the water container;
and

(iii) supplied —
(A) individually as a separated circuit in accordance with
Clause 1.7.4.5; or
(B) as a SELV or PELV system in accordance with Clause 7.7;
or
(C) by a residual-current device with a maximum rated residual
current of 30 mA; and

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(iv) controlled by a switch that does not operate automatically by the
insertion or withdrawal of a plug.
(c)

In Zone 1, socket-outlets that are not installed for the connection of
pool equipment shall not be permitted.

(d)

In Zone 2, socket-outlets with the required degree of protection shall
be permitted where they are supplied —
(i)

individually as a
Clause 1.7.4.5; or

separated

circuit

in

accordance

with

(ii)

as an SELV or PELV system in accordance with Clause 7.7; or

(iii) by a residual current device with a maximum rated residual
current of 30 mA.
7.2.4.4 Switches and other accessories

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The following conditions shall apply to the installation of switches and
accessories, other than socket-outlets, in classified zones:
(a)

In Zone 0, switches and other accessories shall not be permitted.

(b)

In Zones 1 and 2, switches and other accessories with the required
degree of protection shall be permitted.

7.2.4.5 Other electrical equipment
The following conditions shall apply to the installation of appliances,
luminaires and other electrical equipment in classified zones:
(a)

In Zone 0, electrical equipment with the required degree of protection
is permitted where it is —
(i)

specifically intended for use in a swimming or spa pool; and

(ii)

supplied as a SELV or PELV system in accordance with
Clause 7.7 except that —
(A) the nominal voltage shall not exceed 12 V a.c. or 30 V
ripple-free d.c.; and
(B) the supply source shall be installed outside Zone 0.

Under water luminaires shall not be provided with a protective earthing
conductor in accordance with Clause 5.7.3.3.
(b)

In Zone 1, electrical equipment with the required degree of protection
shall be permitted where it is —
(i)

supplied as a SELV or PELV system in accordance with
Clause 7.7; or

(ii)

of Class II construction (double or reinforced insulation) and fixed
in position; or

(iii) of Class I construction, fixed in position and is supplied from a
circuit protected by a residual current device with a maximum
rated residual current of 30 mA.
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(c)

AS/NZS 3000:2000

In Zone 2, electrical equipment with the required degree of protection
shall be permitted where it is —
(i)

supplied as a SELV or PELV system in accordance with
Clause 7.7; or

(ii)

supplied individually as a separated circuit in accordance with
Clause 1.7.4.5; or

(iii) of Class II construction (double or reinforced insulation); or
(iv) of Class I construction and is supplied from a circuit protected by
a residual current device with a maximum rated residual current
of 30 mA.
(d)

In Zones 1 and 2, electric heating cable systems intended for heating
the location and embedded in the floor and protected in accordance
with Clause 4.3.8.5 shall be permitted.

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7.2.4.6 Switchboards
Switchboards shall be installed in appropriate locations in accordance with
Clause 2.9.8.

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1.5
1.5
2.5
2.5
1.5

2.0

2.5
1.5
2.0
2.0
2.0

1.5
Zone 0

1.5

Zone 1

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Zone 2
DIMENSIONS IN METRES

FIGURE 7.2A ZONE DIMENSIONS OF SWIMMING POOLS IN GROUND

2.5
2.5

2.5

1.5
2.0
2.0
1.5

2.0
2.0

1.5

1.5
Zone 0
Zone 1
Zone 2
DIMENSIONS IN METRES

FIGURE 7.2B ZONE DIMENSIONS OF SWIMMING POOLS ABOVE GROUND

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2.5
2.5
1.0
1.0

1.0

1.0

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Zone 0
Zone 1

2.5
2.5

1.0
1.0

1.0

1.0
Zone 0
Zone 1
DIMENSIONS IN METRES

FIGURE 7.2C ZONE DIMENSIONS OF SPA POOLS AND TUBS WITH WATER
CAPACITY NOT EXCEEDING 5000 L

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7.3 LOCATIONS CONTAINING SAUNA HEATERS
7.3.1 Scope
The particular requirements of this Clause 7.3 apply to locations in
which sauna heating equipment is installed and used exclusively for
sauna heating.
NOTE: This Clause does not apply to sauna heating appliances that comply
with other appropriate Standards.

7.3.2 Classification of zones
The requirements for sauna heaters are based on the dimensions of the
following four zones (examples are given in Figure 7.3):

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(a)

(b)

(c)

Zone 1 shall be the area limited by the —
(i)

vertical plane 0.5 m from the external edge of the sauna heater;
and

(ii)

floor, or surface expected to be occupied by persons, and the
horizontal plane 0.3 m below the ceiling.

Zone 2 shall be the area limited by the —
(i)

vertical plane external to Zone 1 and the walls of the sauna room;
and

(ii)

floor, or surface expected to be occupied by persons, and the
horizontal plane 0.5 m above the floor or surface.

Zone 3 shall be the area limited by the —
(i)

vertical plane external to Zone 1 and the walls of the sauna room;
and

(ii)

horizontal plane 0.5 m above the floor, or surface expected to be
occupied by persons, and the horizontal plane 0.3 m below the
ceiling.

NOTE: Zone 3 is directly above Zone 2.

(d)

Zone 4 shall be the area limited by the —
(i)

walls of the sauna room; and

(ii)

horizontal plane 0.3 m below the ceiling.

7.3.3 Protection against electric shock
7.3.3.1 Separated extra-low voltage (SELV)
Where SELV is used, whatever the nominal voltage, protection against
direct contact shall be provided in accordance with Clause 7.7.
7.3.3.2 Prohibited measures
The following measures of protection against electric shock shall be
prohibited:
(a)

Protection by means of obstacles in accordance with Clause 1.7.3.5.
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(b)

AS/NZS 3000:2000

Protection by placing out of reach in accordance with Clause 1.7.3.6.

7.3.4 Selection and installation of electrical equipment
7.3.4.1 Degree of protection required
Electrical equipment installed within the sauna room shall have a degree of
protection of at least IPX4B or IP24.
7.3.4.2 Requirements in classified zones

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The installation of electrical equipment and wiring in classified zones shall
be in accordance with the following:
(a)

In Zone 1, only electrical equipment belonging to the sauna heater
shall be permitted.

(b)

In Zone 2, there are no special requirements concerning heat
resistance of electrical equipment.

(c)

In Zone 3, electrical equipment shall be suitable to withstand a
minimum temperature of 125°C and the insulation of conductors shall
be suitable to withstand a minimum temperature of 170°C.

(d)

In Zone 4, only control devices of sauna heaters (thermostats and
thermal cut-outs) and wiring associated with such devices are
permitted. Heat resistance requirements for Zone 3 apply.

7.3.4.3 Wiring systems
Wiring systems shall be suitable for the location, taking account of external
influences in accordance with Clause 3.3.
NOTE: Examples of such wiring systems are single-core cables in non-metallic
enclosures or cables with insulating sheath.

7.3.4.4 Socket-outlets, switches and other accessories
The installation of socket-outlets, switches and other accessories shall be
in accordance with the following:
(a)

Socket-outlets shall not be permitted.

(b)

Switches and other accessories not built into the sauna heater shall be
installed outside the enclosure of the location.

7.3.4.5 Temperature limiting devices
A temperature limiting device, capable of disconnecting the supply to the
sauna heater when the temperature measured in Zone 4 exceeds 140°C,
shall be installed.
7.3.4.6 Switchboards
Switchboards shall be installed in appropriate locations in accordance with
Clause 2.9.8.

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AS/NZS 3000:2000
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DIMENSIONS IN METRES

FIGURE 7.3 ZONES OF TEMPERATURE

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7.4 REFRIGERATION ROOMS
7.4.1 Scope
The particular requirements of this Clause 7.4 apply to locations such as
freezers or cold rooms.
7.4.2 Classification of zone
The requirements for refrigerated rooms are based on one zone, which
comprises all of the area within the refrigeration room.
7.4.3 Protection against electric shock
7.4.3.1 Separated extra-low voltage (SELV)
Where SELV is used, whatever the nominal voltage, protection against
direct contact shall be provided in accordance with Clause 7.7.5.
7.4.3.2 Prohibited measures

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

The following measures of protection against electric shock shall be
prohibited:
(a)

Protection by means of obstacles in accordance with Clause 1.7.3.5.

(b)

Protection by placing out of reach in accordance with Clause 1.7.3.6.

7.4.4 Selection and installation of electrical equipment
7.4.4.1 Degree of protection required
Electrical equipment permitted to be installed within the refrigeration room
shall have a degree of protection of at least IPX4B or IP24.
7.4.4.2 Wiring systems
7.4.4.2.1 General
The wiring system used in a refrigeration room shall be of a type
which —
(a)

will not be affected by the operating temperature of the room; and

(b)

does not provide pockets or channels in which moisture might
accumulate or through which it might pass into electrical
equipment.

No conductors other than those required for the supply, control and
protection of electrical equipment within refrigeration rooms shall be taken
through or be installed in such rooms.
7.4.4.2.2 Types permitted
The following wiring systems are permitted:
(a)

Unenclosed sheathed cables including served MIMS cables.

(b)

Insulated or sheathed cables enclosed in a wiring enclosure that has
adequate draining facilities.

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(c)

Other wiring systems that are not inferior to the system described in
Item (a) or Item (b).

NOTE: PVC insulated or sheathed cables may not be satisfactory for electrical
installations in refrigerated rooms where the cables may be subjected to
bending, flexing or vibration at temperatures below approximately 0°C. See
Clause 3.3.2 and Table 3.3.

7.4.4.2.3 Sealing
The following shall be sealed with a compound that does not set hard:
(a)

Each wiring enclosure at any point where it passes from a refrigerated
to a non-refrigerated space.

(b)

The point of entry of cables into motors, luminaires, switches or other
electrical equipment.

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7.4.4.3 Socket-outlets, switches and other accessories
Socket-outlets, switches and other accessories shall be designed such that
provision is made to prevent the retention of moisture within their
enclosure. This requirement may be satisfied by the use of socket-outlets,
switches and other accessories, and controlgear that are permanently
sealed.
7.4.4.4 Luminaires and lampholders
7.4.4.4.1 Luminaires
Luminaires shall be permanently sealed to prevent the entry of liquid or
vapour, or be designed and constructed so that —
(a)

moisture cannot enter the
containing live parts; and

lampholder

and

other

components

(b)

provision is made to prevent the retention of moisture in or on the
fitting.

7.4.4.4.2 Lampholders
Lampholders shall comply with the following:
(a)

(b)

Construction Lampholders shall be —
(i)

the all-insulated type; or

(ii)

any other suitable type which precludes the possibility of any
external metal portion becoming live.

Location Lampholders shall not be suspended within 2.50 m of the
floor or ground when on a flexible pendant.

7.4.4.5 Fixed appliances and motors
Fixed appliances shall be designed and constructed for the particular
location and conditions. Electrical equipment enclosures shall have, or
provide, a degree of protection suitable for the conditions in which the
electrical equipment is installed.

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