AS NZS 3000 2000 amdt 1 2001 electrical installations

Page 39 Clause 1.8.2c Delete Item a of the NOTE and insert the following: a For Australia, 230/400 V +10% − 6% in accordance with AS 60038; and Page 43 Clause 1.10.1 Delete first sentenc

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Published on 25 September 2001.

Approved for publication in New Zealand on behalf of the Standards Council of New Zealand on

24 August 2001

Page 21 Clause 1.4.57

1 Delete the NOTE to Item (c) and insert the following:

NOTE: Elastomer sheathed cables in accordance with the AS/NZS 5000 series, sheathed flexible cords in accordance with AS/NZS 3191 other than the ‘light duty’ type, and sheathed neutral-screened cables in accordance with AS/NZS 3155 are deemed to provide double insulation between the conductors of the cable and any metal in contact with the cable The use of flexible cords of the ‘light duty’ type as supply flexible cords is covered in equipment Standards.

2. Delete the NOTE to Item (d) and insert the following:

NOTE: Aerial bundled cables in accordance with AS/NZS 3560.1 are deemed

to provide reinforced insulation provided they meet the requirements for reinforced insulation detailed in AS/NZS 3100.

Page 39 Clause 1.8.2(c)

Delete Item (a) of the NOTE and insert the following:

(a) For Australia, 230/400 V +10% − 6% (in accordance with AS 60038); and

Page 43 Clause 1.10.1

Delete first sentence and insert the following:

Electrical equipment shall be installed in accordance with the manufacturer’sinstructions and generally accepted principles of safe and sound practice

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 IN of a

fuse should not exceed 90% (1.45/1.6 = 0.9) of IZ

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:

(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

(e) Fault current limiters.

(f) Surge diverters installed to protect consumers mains or main switchboards.

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 beaffected by water splashing or steam the switchboard shall be providedwith a suitable enclosure or shall be installed in a cupboard with closefitting 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 inClause 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

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:

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

TABLE 3.6 UNDERGROUND WIRING SYSTEM

Type of cable

duty conduit*

Heavy- duty conduit*encased in concrete

Medium- duty fibre cement conduit

Heavy-Fibre cement pipe or duct encased in concrete

Medium-or heavy-duty galvanized pipe

duty rigid, corrugated

Medium-or flexible conduit*

Buried direct in the ground

Chased in rock with no enclosure (see Note 1)

Insulated cables

Sheathed and armoured and served cables

Neutral screened cables suitable for underground

Neutral screened

Armoured paper insulated lead covered cables without serving

Armoured paper insulated lead covered cables with serving

Unarmoured paper insulated lead covered cables without serving

Unarmoured paper insulated lead covered cables with serving

Served MIMS

Aluminium sheathed or strip armoured cables with PVC sheath

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

KEY:

A B

=

=

Category A system Category B system

C 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

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

Page 121 Clause 4.5.2.2(ii)

Delete Item (ii) and insert the following:

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 usedonly for the earthing of electrical equipment, including the earthingcontacts of socket-outlets, supplied through the associated liveconductors

(b) Cables in conduit Any protective earthing conductor laid-up with live

conductors within a conduit run shall only be used for the earthing ofelectrical equipment, including the earthing contacts of socket-outlets,supplied through the associated live conductors

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 circuit protective devices any exposed conductive parts associated with the

(a) switchboard cases, surrounds and enclosures; and

(b) wiring enclosures; and

(d) supports for aerial conductors;

shall be earthed by a conductor, with a cross-sectional area not less than

(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.

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

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:

whichever is the lower

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

floor, whichever is the lower

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

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 otherlocations

protection in other locations

(a) In Zones 0 and 1 socket-outlets shall not be permitted.

(b) In Zone 2, socket-outlets shall not be permitted unless they—

(i) are protected by a residual-current device with a maximum ratedresidual current of 30 mA; and

(ii) are enclosed in a cupboard provided that the enclosure ismaintained during the normal operation of the connectedequipment; or

(iii) have automatic switching and are incorporated in a shaver supplyunit complying with AS/NZS 3194

residual current of 30 mA; or

Clause 1.7.4.5; or(iii) supplied as an SELV or PELV system in accordance withClause 7.7

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 thefloor of a bathroom, laundry or other place where the floor is likely tobecome wet

In addition the following conditions shall apply to the installation of switchesand other accessories in the 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 at least therequired degree of protection shall be permitted

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 requireddegree 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).

DIMENSIONS IN METRES

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

PART II — SHOWER WITH A BASE

DIMENSIONS IN METRES

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

PART III — SHOWER WITHOUT A BASE

DIMENSIONS IN METRES

FIGURE 7.1D FIXED WATER CONTAINERS OTHER THAN BATHS AND

SHOWERS, ZONE DIMENSIONS

Page 207 Clause 7.8.10.5.3

1 Delete Item (a)(vii).

2 Renumber Item (a)(viii) as Item (a)(vii).

3 Insert new Item (b)(iv) as follows:

(iv) Bonding to the underground water piping systems as required byClause 5.8.2.2

Page 212 Clause 7.9.1

Add the following NOTE:

NOTE: An overview of this topic is contained in HB13.

Page 212 Clause 7.9.2.1

Delete the second sentence and insert the following:

AS/NZS 61241.3 and the AS/NZS 2430.3 series

Page 212 Clause 7.9.2.2

Delete this Clause and insert the following:

7.9.2.2 Recognized hazardous areas

Two general hazardous areas are recognized as follows:

(a) Gas hazardous areas Gas hazardous areas are those in which

flammable gases or vapours are or may be present in the area insufficient quantities to produce an explosive gas atmosphere

Within gas hazardous areas, three Zones (Zone 0, Zone 1, Zone 2)are recognized and they are defined in AS 2430.1

(b) Dust hazardous areas Dust hazardous areas are those areas which

are hazardous because of the presence of combustible dust, fibres orflyings

Zone 22) are recognized and they are defined in AS/NZS 61241.3

Page 222 Clause 7.10.9.2

Delete Paragraphs 1 and 2 and insert the following:

7.10.9.2 Overcurrent protection

The overload characteristics of overcurrent protective devices provided on

(a) have an inverse time characteristic; and

motor current

No other overload protective device shall be inserted between the pumpmotor controller and the motor

Page 222 Clause 7.10.9.4

Delete Item (c) and insert the following:

provided for the pump-motor circuit in accordance withClause 7.10.9.2

Page 225 APPENDIX A

Delete the following in the appropriate place:

AS

voltages up to and including 0.6/1 kVAS/NZS

Insert the following in the appropriate place.

AS

AS/NZS

61241.3 Part 3: Classification of areas where combustible dusts are or may

be present

Page 238 APPENDIX B Paragraph B5.3

Add the following as a new NOTE 3.

3 The maximum circuit lengths in Table B5.1 are related to a 0.4 s disconnection time.

Page 258 APPENDIX D Paragraph D2

1. Item (a); Delete the words ‘Table 3.10’ and insert ‘Table 3.9’.

2. Item (b); Delete the words ‘Table 3.9’ and insert ‘Table 3.8’.