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AS/NZS 3000:2000 (Amdt No. 1) Electrical installations (known as the Australian/New Zealand Wiring Rules)

AS/NZS 3000:2000 (Amdt No. 1) Electrical installations (known as the Australian/New Zealand Wiring Rules)

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AMDT
No. 1
SEPT
2001

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AMDT
No. 1
SEPT
2001

AMDT
No. 1
SEPT
2001

AMDT
No. 1
SEPT
2001

Page 49 Clause 2.4.3.2(b)
Delete the NOTE to the equations and insert the following:
NOTE: Therefore to satisfy Equation 2.4.3.2(2), the nominal current I N of a
fuse should not exceed 90% (1.45/1.6 = 0.9) of I Z .
Page 59 Clause 2.8.3.3.1
Insert the following as the final Paragraph:

The following parts of the installation need not be controlled by a main
isolating switch or switches:
(a)

Consumers mains.

(b)

Ancillary equipment, measuring devices, and associated wiring that are
required to be connected to the supply side of the main switch or
switches, provided that this wiring and equipment are confined within or
on the switchboard.

(c)

Equipment associated with emergency systems that are connected on
the supply side of a main switch in accordance with Clause 7.10.

(d)

Equipment associated with alternative supply systems that are
connected on the supply side of a main switch in accordance with
Clause 4.8.

(e)

Fault current limiters.

(f)

Surge diverters
switchboards.

installed to protect

consumers

mains

or

main

Page 70 Clause 2.9.8.4(b)
Delete Item (b) and insert the following:

(b)

Water containers and fixed or stationary cooking appliances A
switchboard shall not be installed above open water containers or fixed
or stationary cooking appliances. If located in an area where it may be
affected by water splashing or steam the switchboard shall be provided
with a suitable enclosure or shall be installed in a cupboard with close
fitting doors.

Page 89 Clause 3.9.4.4
Delete the second Paragraph and insert the following:

Wiring systems shall be protected by one of the methods outlined in
Clause 3.9.4.6 if they pass through the immediate roof support, or are fixed
in position, within 50 mm from the underside of the roof material.

AMDT
No. 1
SEPT
2001

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AMDT
No. 1
SEPT
2001

AMDT
No. 1
SEPT
2001

AMDT
No. 1
SEPT
2001

Page 89 Clause 3.9.4.5
1.

Delete Item (b) and insert the following:

(b)

fixed or otherwise restrained in position in a hollow wall.

2.

Delete Item (ii) and insert the following:

(ii)

installed to be able to move freely within holes in supports in hollow
walls, such as studs, noggins and wall plates.

Page 90 Figure 3.1
Delete Figure 3.1 and insert the following:

Page 101 Clause 3.11.3.3(e)
Delete Item (e) and insert the following:

(e)

Bricks manufactured specifically for the protection of electric cables.

Page 102 Table 3.6
Delete Table 3.6 and insert new Table 3.6 (attached)

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AMDT
No. 1
SEPT
2001

TABLE 3.6
UNDERGROUND WIRING SYSTEM
1

2

3

4

5

6

7

8

9

Heavyduty
conduit*

Mediumduty
conduit*
encased
in
concrete

Heavyduty fibre
cement
conduit

Fibre
cement
pipe or
duct
encased in
concrete

Medium-or
heavy-duty
galvanized
pipe

Mediumduty rigid,
corrugated
or flexible
conduit*

Buried
direct in
the
ground

Chased in
rock with
no
enclosure
(see
Note 1)

Insulated cables
(without sheath)

A

A

NP

NP

NP

B

NP

NP

Sheathed cables

A

A

A

A

A

B

B

NP

Sheathed and
armoured and
served cables

A

A

A

A

A

A

A

C

Neutral screened
cables suitable for
underground

A

A

A

A

A

A

A

NP

Neutral screened
cables

A

A

A

A

A

B

B

NP

Armoured paper
insulated lead
covered cables
without serving

A

A

A

A

A

B

NP

NP

Type of cable

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AMDT
No. 1
SEPT
2001

Armoured paper
insulated lead
covered cables
with serving

A

A

A

A

A

B

B

C

Unarmoured
paper insulated
lead covered
cables without
serving

A

A

A

A

NP

B

NP

NP

Unarmoured
paper insulated
lead covered
cables with
serving

A

A

A

A

A

B

NP

NP

Served MIMS
cables

A

A

A

A

A

B

B

C

Aluminium
sheathed or strip
armoured cables
with PVC sheath

A

A

A

A

A

B

B

C

*

These conduits and any associated fittings consist of insulating material only and do not have any conductive components .

KEY:
A

=

Category A system

C

=

B

=

Category B system

NP =

Category C system
Not permitted

NOTES:
1 Underground wiring installed as a Category A system and laid in a channel chased in rock in accordance with
Category C system requirements of Table 3.7 may be deemed to be Category C.
2 See Clause 3.11.3 and Table 3.7 for installation and depth of laying requirements.

Page 117 Clause 4.3.6.2
AMDT
No. 1
SEPT
2001

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AMDT
No. 1
SEPT
2001

AMDT
No. 1
SEPT
2001

Delete the third Paragraph and insert the following:

The distance separating incandescent lamps of spotlights and objects,
illuminated by them, which are made of flammable material shall be not less
than the following values :
Page 121 Clause 4.5.2.2(ii)
Delete Item (ii) and insert the following:

(ii)

the secondary circuit conductors have a current-carrying capacity not
less than the rated load current of the transformer primary winding
multiplied by the ratio of the transformer primary voltage to the
secondary voltage.

Page 146 Clause 5.6.7.2
1.

Insert the following new clause number and title for existing text.

5.6.7.2.1 General
2.

Insert the following new Clause 5.6.7.2.2

5.6.7.2.2 Restricted connections for final subcircuits
The following restrictions apply to the use of protective earthing conductors:
(a)

Multicore cables Any protective earthing conductor incorporated in
the sheathing of a multicore cable with live conductors shall be used
only for the earthing of electrical equipment, including the earthing
contacts of socket-outlets, supplied through the associated live
conductors.

(b)

Cables in conduit Any protective earthing conductor laid-up with live
conductors within a conduit run shall only be used for the earthing of
electrical equipment, including the earthing contacts of socket-outlets,
supplied through the associated live conductors.

AMDT
No. 1
SEPT
2001

Page 154 Clause 5.7.3.5
Delete the Clause and insert the following:

5.7.3.5 Unprotected consumers mains
Where consumers mains are not protected on the supply side by shortcircuit protective devices any exposed conductive parts associated with the
consumers mains such as —
(a)

switchboard cases, surrounds and enclosures; and

(b)

wiring enclosures; and

(c)

boxes and accessories; and

(d)

supports for aerial conductors;

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shall be earthed by a conductor, with a cross-sectional area not less than
the main neutral conductor, connected to the —
(i)

main neutral conductor or bar; or

(ii)

main earthing terminal/connection or bar.

NOTE: Clause 5.6.5.2 requires the size of the MEN link to be not less than the
cross-sectional area of the main neutral conductor.

AMDT
No. 1
SEPT
2001

AMDT
No. 1
SEPT
2001

Page 165 Clause 6.3.3.2.2
Delete the second Paragraph and insert the following:

The resistance of the main earthing conductor or any equipotential bonding
conductor shall be not more than 0.5 Ω.
Page 168 Clause 7.1.1
Delete existing NOTE and insert the following:
NOTES:
1
For locations containing baths for medical treatment, special requirements
may be necessary.
2
Electrical equipment installed behind a fixed panel to which access may
only be gained by the use of a tool would not be considered to be in a
classified zone.

AMDT
No. 1
SEPT
2001

Page 168 Clause 7.1.2.1
1.

Delete Item b (iii) and insert the following:

(iii) floor and the ceiling or the horizontal plane 2.5 m above the floor,
whichever is the lower.
2.

Delete Item c (ii) and insert the following:

(ii)
3.

floor and the ceiling or the horizontal plane 2.5 m above the floor,
whichever is the lower.

Delete Items d (ii) and (iii) including the NOTE and insert the following:

(ii)

the floor and the ceiling or the horizontal plane 2.5 m above the
floor, whichever is the lower.

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NOTE: The zones do not extend beyond the boundaries of the room.

AMDT
No. 1
SEPT
2001

Page 169 Clause 7.1.2.2
1.

Zone 2 shall be —
2.

AMDT
No. 1
SEPT
2001

Item (b); delete the first line and insert the following:

Delete Item (c) and the NOTES and insert new NOTES as follows:
NOTES:
1 There are no Zones 1 and 3 associated with these water containers.
2 The zones do not extend beyond the boundaries of the room.

Page 169 Clause 7.1.4.1
1.

Delete Items (b), (c) and (d) and insert the following:

(b)

In Zones 1 and 2: IPX5 in communal baths/showers; IPX4 in other
locations.

(c)

In Zone 3: IPX5 in communal baths/showers; no specific degree of
protection in other locations.

AMDT
No. 1
SEPT
2001

Page 170 Clause 7.1.4.2
Delete the Clause and insert the following:

7.1.4.2 Socket-outlets
Socket-outlets shall not be installed within 0.3 m of the floor of a bathroom,
laundry or other similar location where the floor is likely to become wet.
In addition, and not withstanding the degree of protection required, the
following conditions shall apply to the installation of socket-outlets in the
classified zones:
(a)
(b)

In Zones 0 and 1 socket-outlets shall not be permitted.
In Zone 2, socket-outlets shall not be permitted unless they—
(i) are protected by a residual-current device with a maximum rated
residual current of 30 mA; and

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(ii)

are enclosed in a cupboard provided that the enclosure is
maintained during the normal operation of the connected
equipment; or

(iii) have automatic switching and are incorporated in a shaver supply
unit complying with AS/NZS 3194.
(c)

In Zone 3, socket-outlets shall not be permitted unless they are —
(i) protected by a residual-current device with a maximum rated
residual current of 30 mA; or
(ii)

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

(iii) supplied as an SELV or PELV system in accordance with
Clause 7.7.
AMDT
No. 1
SEPT
2001

Page 170 Clause 7.1.4.3
Delete the Clause and insert the following:

7.1.4.3 Switches and other accessories
Switches and other accessories shall not be installed within 0.3 m of the
floor of a bathroom, laundry or other place where the floor is likely to
become wet.
In addition the following conditions shall apply to the installation of switches
and other accessories in the classified zones:
(a)
(b)

In Zone 0, switches and other accessories shall not be permitted.
In Zones 1 and 2, switches and other accessories with at least the
required degree of protection shall be permitted.

AMDT
No. 1
SEPT
2001

AMDT
No. 1
SEPT
2001

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No. 1
SEPT
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AMDT
No. 1
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AMDT
No. 1
SEPT
2001

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No. 1
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2001

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2001

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2001

Page 170 Clause 7.1.4.4
Delete Item (b) and insert the following:

(b)

In Zones 1, 2 and 3, electrical equipment with at least the required
degree of protection shall be permitted.

Page 172 FIGURE 7.1A (in part) BATHS AND SHOWERS, ZONE DIMENSIONS
PART I — BATHS
Delete Figure and insert new Figure 7.1A (in part) BATHS AND SHOWERS, ZONE
DIMENSIONS PART I — BATHS (see attached).
Page 173 FIGURE 7.1A (in part) BATHS AND SHOWERS, ZONE DIMENSIONS
PART II — SHOWER WITH A BASE
Delete Figure and insert new Figure 7.1A (in part) BATHS AND SHOWERS, ZONE
DIMENSIONS PART II — SHOWER WITH A BASE (see attached).
Page 174 FIGURE 7.1A (in part) BATHS AND SHOWERS, ZONE DIMENSIONS
PART III — SHOWER WITHOUT A BASE
Delete Figure and insert new Figure 7.1A (in part) BATHS AND SHOWERS, ZONE
DIMENSIONS PART III — SHOWER WITHOUT A BASE (see attached).
Page 175 FIGURE 7.1B (in part) BATHS AND SHOWERS, ZONE DIMENSIONS
(PLAN)
Delete Figure and insert new Figure 7.1B (in part) BATHS AND SHOWERS, ZONE
DIMENSIONS (PLAN) (see attached).
Page 176 FIGURE 7.1B (in part) BATHS AND SHOWERS, ZONE DIMENSIONS
(PLAN)
Delete Figure and insert new Figure 7.1B (in part) BATHS AND SHOWERS, ZONE
DIMENSIONS (PLAN) (see attached).
Page 177 FIGURE 7.1C BATHS AND SHOWERS, ZONE DIMENSIONS
(ELEVATION)
Delete Figure and insert new Figure 7.1C BATHS AND SHOWERS, ZONE
DIMENSIONS (ELEVATION) (see attached).
Page 178 FIGURE 7.1D FIXED WATER CONTAINERS OTHER THAN BATHS
AND SHOWERS, ZONE DIMENSIONS
Delete Figure and insert new Figure 7.1D FIXED WATER CONTAINERS OTHER
THAN BATHS AND SHOWERS, ZONE DIMENSIONS (see attached).

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AMDT
No. 1
SEPT
2001

DIMENSIONS IN METRES

FIGURE 7.1A (in part) BATHS AND SHOWERS, ZONE DIMENSIONS
PART I — BATHS

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AMDT
No. 1
SEPT
2001

DIMENSIONS IN METRES

FIGURE 7.1A (in part) BATHS AND SHOWERS, ZONE DIMENSIONS
PART II — SHOWER WITH A BASE