AS/NZS 3000:2018 Amd 3:2023
Electrical installations (known as the Australian/New Zealand
Wiring Rules)
Amendment No. 3
Revised text amendment
Publishing and Approval Dates
Council of Standards Australia Approval: 9 May 2023
New Zealand Standards Approval Board Approval: 14 December 2022
Published: 19 May 2023
Summary
This Amendment applies to the following elements:
• Clauses 1.4.126, 1.5.5.4, 2.5.5.1, 2.5.5.2, 2.10.1, 2.10.3.1, 2.10.3.2, 2.10.3.3, 3.4.1, 3.8.1, 3.9.7.1.2, 3.15,
4.4.1.1.1, 4.4.2.2, 4.13.1.2.
• Appendices A and C.
Amendment Details
AS/NZS 3000:2018 is amended as follows. The amendments should be inserted in the locations
as instructed.
Element Instruction / New text
Cl 1.4.126 Delete the Exception and replace with the following:
AS/NZS 61439.6.
Cl 1.5.5.4 In list item (a), delete item (ii) and with the following:
(ii) Switchgear assemblies having total insulation in accordance with AS/NZS 61439.1.
Cl 2.5.5.1 Delete Note 1 and replace with the following:
1 Refer to AS/NZS 61439.1 for switchboard requirements and AS/NZS 61439.6
for busways.
Cl 2.5.5.2 1 Delete with the following:
Switchboards rated at 800 A or greater per phase shall be provided with
internal separation in accordance with AS/NZS 61439.2 for—
2 Delete Note 1 and with the following:
1 Separation in accordance with AS/NZS 61439.2 may be achieved by the
insulation of busbars, the use of barriers or by insulated housings, i.e. by the
use of a Form 3b, Form 3bi, Form 3bh, Form 3bih, Form 4a, Form 4ah, Form
4aih or Form 4b, Form 4bi, Form 4bh, Form 4bih constructed switchboard.
3 Delete Note 3 and with the following:
© Standards Australia Ltd/the Crown in right of New Zealand, administered by the New Zealand Standards Executive 2023
ISBN 978 1 76139 188 0
AS/NZS 3000:2018 Amd 3:2023 B
Element Instruction / New text
3 Internal arc fault testing of switchboard designs to Annex ZD of AS/
NZS 61439.1 or IEC/TR 61641 is not required and is considered to be an
enhancement of internal separation. These designs are intended to prevent
the arc or products of the arc affecting other parts of the switchboard.
Arc fault containment is achieved by the arrangement of the busbars and
functional units of the switchboard in vented compartments and relies, for
its effectiveness, on compartment access doors being closed during a fault. It
is not designed to prevent the initiation of a fault during maintenance and is
also not designed to provide switching operator or maintenance personnel
Cl 2.10.1 Delete Exception 1 and with the following:
1 This requirement need not apply to switchgear and protective devices installed in a
ground-mounted, cable-distribution cabinet in accordance with AS/NZS IEC 61439.5,
that protect small submains teed off larger submains forming an underground
reticulated wiring system and to which unskilled persons do not require access.
Cl 2.10.3.1 Delete second paragraph and with the following:
In situations where the removal of covers and the like exposes live parts, such
Cl 2.10.3.2 1 Delete second paragraph and with the following:
Switchboards complying with the requirements of the AS/NZS 61439 series
or AS/NZS 3439 series are deemed to comply with this Clause.
2 Delete third paragraph and with the following:
Switchboards shall comply with the AS/NZS 61439 series or AS/NZS 3439
series if one or both of the following exist:
Cl 2.10.3.3 Delete with the following:
that a minimum clearance or creepage distance in air, in accordance with the AS/
NZS 61439 series, is maintained between such conductors or parts of opposite
polarity or phase and between such conductors or parts and earth.
Cl 3.4.1 Delete Note 4 and with the following:
4 Current-carrying capacities for busbars and busways should be obtained from
the manufacturer. Information relating to busways is given in AS/NZS 61439.6.
Cl 3.8.1 Delete Note 2 and with the following:
2 Switchboard wiring is not regarded as installation wiring but the AS/NZS 61439
conductors.
Cl 3.9.7.1.2 Delete item (iv) and with the following:
(iv) Busways and busbar systems, including joints and switchboard busbars,
NZS 61439 series.
Cl 3.15 Delete with the following:
Busbar trunking systems (busways) shall comply with AS/NZS 61439.6, and shall
be installed in accordance with the manufacturer’s instructions.”
Cl 4.4.1.1.1 Delete item (a) and with the following:
(a) AS/NZS 3112.
Cl 4.4.2.2 Item (a), delete Note and with the following:
NOTE: AS/NZS 3112 contains requirements for socket outlets intended to be
Cl 4.13.1.2 Note, delete item (c) and with the following:
(c) Switches incorporated with and supplying a socket-outlet intended for use with
a plug complying with AS/NZS 3112.
App A Delete “60884 Plugs and socket-outlets for household and similar purposes
© Standards Australia Ltd/the Crown in right of New Zealand, administered by the New Zealand Standards Executive 2023
C AS/NZS 3000:2018 Amd 3:2023
Element Instruction / New text
60884.1 Part 1: General requirements (IEC 60884-1, Ed. 3.1 (2006) MOD)”.
App C2.4.4 Delete eplace with the following:
For switchboards conforming with the AS/NZS 61439 series, the maximum demand
may be determined by multiplying the arithmetic sum of the circuit overload
ratings by the appropriate diversity factor in Table C4 below.
© Standards Australia Ltd/the Crown in right of New Zealand, administered by the New Zealand Standards Executive 2023
