Electrical
Wiring rules and companions set – new draft amendment available now for public comment
Standards New Zealand invites public comment on the draft Amendment 1 to AS/NZS 3000 Electrical installations (known as the Australian/New Zealand Wiring rules), DR3000A1 (Committee EL-001).
Draft Amendment 1 to AS/NZS 3000:2007 corrects a number of editorial errors, and clarifies, amends or introduces new technical requirements. The amendment affects over 100 clauses, tables and figures. The draft is available for public comment until 9 April 2009.
Download the draft amendment.
Notable changes include:
- Limiting the restriction of a maximum of three final subcircuits per residual current devices (RCD) to residential installations only. (Clause 2.6.2.4).
- Excluding the requirement for RCD protection for stoves and ovens. (Clause 2.6.3.1).
- Introduction of a requirement for 10 mA RCD protection of higher risk installations such as kindergartens, day-care centres and primary schools. (New Clause 2.6.3.4 )
- Clarifying the colour code requirements for flexible cords and flexible cables. (Clause 3.8.3.2 and Tables 3.1 & 3.2)
- Clarification of electrical work requiring building consent in New Zealand. (Clause E3.3).
- Appendix K High Voltage Electrical Installations has been deleted.
Performance of airconditioners – new Standard
A new Standard is available for the Performance of close control airconditioners. AS/NZS 4965 is in two parts.
- AS/NZS 4965.1:2008 Testing for rating specifies the conditions on which the capacity and energy consumption of factory-made close control airconditioners are based, and the test methods to be applied to determine the capacity and efficiency ratings. This Standard covers equipment using a single or multiple refrigerated direct expansion (DX) system designed to control and monitor temperature and humidity, and may include supplementary conditioning equipment.
- AS/NZS 4965.2:2008 Minimum energy performance standard (MEPS) requirements specifies the MEPS requirements for close control airconditioners that fall in the scope of AS/NZS 4965.1. This Standard does not specify electrical safety requirements, but does specify values for rated power (input), rated capacity (output), energy efficiency ratio (EERS) for cooling, and minimum energy performance standard requirements.
Power consumption of television set-top boxes – new Standard
A new Standard is available for the power consumption of audio, video, and related equipment. AS/NZS 62087.2.1:2008, Power consumption for audio, video and related equipment – Minimum energy performance standards (MEPS) requirements for digital television set-top boxes, provides designers, manufacturers, importers, test laboratories, regulators, and users of digital television set-top boxes, with the MEPS requirements for these devices.
Standards for ensuring safe on-site electricity supply
A unique approach is needed to safely provide on-site electricity, for carnivals, construction sites, campsites, and relocatable premises (including caravans and mobile food units). These situations require special considerations, outlined in three Standards.
- Electrical installations – Transportable structures and vehicles including their site supplies, AS/NZS 3001:2008 specifies requirements for electrical installations in relocatable premises, including caravans and tents, and in caravan parks, and camping areas, intended for connection to low-voltage a.c. supply systems. Supersedes AS/NZS 3001:2001.
- Electrical installations – Shows and carnivals, AS/NZS 3002:2008 specifies requirements for the supply of electricity at low-voltage to power consuming devices within tents and other temporary structures used for entertainment or display, and purposes associated with shows and carnivals. It also applies to the supply of low-voltage electricity to distributed temporary installations, such as tent cities set up for scout/guide jamborees, army camps, and similar events. Supersedes AS/NZS 3002:2002.
- Electrical installations – Construction and demolition sites, AS/NZS 3012:2003 outlines requirements for electrical installations, which supply electricity to equipment on construction and demolition sites. It also includes requirements for the inspection and testing of electrical equipment used on these sites, referencing AS/NZ 3760 for methodology.
Heated water systems – new Standard
Heated water systems – Calculation of energy consumption, AS/NZS 4234:2008, is used by manufacturers of hot water systems. It outlines a method of evaluating the annual energy performance of heated water systems, using a combination of test results for component performance, and a mathematical model to determine annual load cycle task performance.
Standards New Zealand hosts 143rd meeting of electrical equipment committee, EL-002
Standards New Zealand hosted the 143rd meeting of the EL-002 committee in Wellington from 18 to 20 February 2009. EL-002 is a joint Australian and New Zealand Standards committee that prepares Standards for the safety of electrical equipment, appliances, and small power transformers, while in use with people, livestock, and the environment.
The EL-002 committee considers many safety factors when preparing Standards, including personal protection against electric shock, effects of excessive temperature radiation, explosion, mechanical stability, hazardous moving parts, and protection against fire.
The committee Chair, Derek Johns, received the Lord Kelvin Award from the International Electrotechnical Commission (IEC) in 2007. This prestigious IEC Award distinguishes experts who have made outstanding contributions to electrotechnical standardisation. Derek has been actively involved in standardisation work for the electrical appliance industry for the past 25 years, ...read more [opens in new window]
NEW AMENDMENT AVAILABLE
Amendment 1 to AS/NZS 4763(Int):2006 Safety of portable inverters
Reconfirms AS/NZS 4763(Int):2006 as an Interim Standard for a further two years to 20 October 2010.
Download this amendment (free)
(Note that a charge applies for hard copies of amendments.)
STANDARD WITHDRAWN
AS/NZS 2947.1:1999 Insulators – Porcelain and glass for overhead power lines – Voltages greater than 1000 V a.c. – Test methods – Insulator units
DRAFT STANDARDS AVAILABLE NOW FOR COMMENT
You can select and download the following drafts from our website.
This New Zealand-only amendment to AS/NZS 3001:2008 removes the requirement to check for a N-E connection for a Warrant of Electrical Fitness examination and requires testing of the earth connections following prescribed electrical work.
Public comment on this draft closes on 6 April 2009.
The 2007 edition of AS/NZS 3105 is to be amended as proposed; Clauses 1.1, 1.2, 4.5.1.2, 4.5.1.3, 4.5.3, 4.5.4, 6.4, 8.1, 8.2, and 8.5.1.
Public comment on this draft closes on 6 April 2009.
To specify numerical compatibility levels for electromagnetic disturbances in industrial plants in the frequencies up to 9 kHz. The compatibility levels apply to industrial and non-public power distribution systems at voltages up to 35 kV and a frequency of 50 Hz or 60 Hz. Power supply systems used on ships, aircraft, offshore platforms, and railways are excluded.
Public comment on this draft closes on 8 April 2009.
To provide users of electromagnetic emissions Standards with reference values on low-frequency magnetic fields produced by some electrical equipment (particularly video display units) in various environments such as industrial, commercial office, residential, and hospital.
Public comment on this draft closes on 8 April 2009.
To provide the users of electromagnetic emissions Standards with a description of the electromagnetic disturbance phenomena that can be expected on public electricity supply systems, and their effects on electrical equipment when subjected to voltage dips and short interruptions. It includes some statistical measurement results as a general reference.
Public comment on this draft closes on 8 April 2009.
To provide the users of electromagnetic emissions Standards and the users of electrical and electronic equipment intended for connection to low and medium-voltage operated electricity supply networks with a description of various phenomena and processes that cause overvoltages.
Public comment on this draft closes on 8 April 2009.