Al­lan Hill, NZEI col­umn

DEMM Engineering & Manufacturing - - CONTENTS -

At an EL-001 joint stan­dards com­mit­tee meet­ing held in Ade­laide early July 2014, the re­vi­sion of AS/NZS 3000, AS/NZS 3010 and AS/NZS 3012 were con­sid­ered and ac­tion taken to ad­vance the re­vi­sion of th­ese joint stan­dards.

AS/NZS 3000 Aus­tralian/New Zealand wiring rules

The re­vi­sion work has com­menced for the ap­proved list of pro­posed amend­ments con­firmed at the pre­vi­ous EL-001 meet­ing.

A num­ber of work­ing groups have been formed to cover each sec­tion (in­clud­ing the ap­pen­dices) of AS/ NZS 3000 and the first pro­pos­als for amend­ments have been tabled and con­sid­ered at the meet­ing.

In some cases, the pro­posed amend­ment was fur­ther amended dur­ing the EL-001 meet­ing, and th­ese fur­ther amend­ments will be in­cor­po­rated into the fi­nal draft amend­ment.

It is ex­pected that once all pro­posed amend­ments have been con­sid­ered by EL-001, that a draft of the pro­posed amend­ments will be is­sued for pub­lic com­ment.

It is es­ti­mated that it will be early 2015 be­fore the pub­lic com­ment draft will be re­leased.

AS/NZS 3010 gen­er­at­ing sets

Con­sid­er­a­tion of the pub­lic com­ment re­ceived has been com­pleted, for the adopted com­ments re­ceived; amend­ment of the draft stan­dard is be­ing com­pleted by a draft­ing leader.

The re­sponses to the draft­ing com­ments con­tained in the pub­lic com­ment draft will re­sult in the su­per­sed­ing of AS 2790, which is an old stan­dard that has re­mained un­al­tered since 1989 and has be­come very dated.

Two op­tions for the up­dat­ing of the con­tent of AS 2790 are be­ing con­sid­ered, place the up­dated AS 2790 con­tents into a stand­alone ap­pen­dix in the re­vised AS/NZS 3010, or, use an cur­rent ISO stan­dard in lieu of AS 2790, this lat­ter pro­posal was a “dis­cov­ery” fol­low­ing the last com­mit­tee meet­ing and has not been con­sid­ered in any de­tail by the stan­dard re­vi­sion com­mit­tee.

It will be nec­es­sary for the AS/NZS 3010 ap­pen­dix to cover some new types of gen­er­at­ing sets if the sep­a­rate ap­pen­dix for ex AS 2790 ma­te­rial, or if the ISO stan­dard op­tion is used.

Th­ese in­clude in­verter types that give a pure sine wave out­put suit­able for sen­si­tive elec­tronic loads, and for the use of in­su­la­tion mon­i­tor­ing de­vices (IMD) for the con­tin­u­ous mon­i­tor­ing of in­su­la­tion fail­ure in the gen­er­at­ing set, or the con­nected por­ta­ble ap­pli­ances.

As the changes made to the pub­lic com­ment draft are ex­ten­sive, it is pro­posed to re-is­sue the draft stan­dard for a com­bined pro­ce­dure pub­lic com­ment for a six-week pe­riod.

AS/NZS 3012 con­struc­tion and de­mo­li­tion sites

Com­ple­tion of site mea­sure­ments of typ­i­cal lu­mi­naires used in es­cape path light­ing on a con­struc­tion site have been com­pleted to ver­ify that a num­ber of as­sump­tions made will be able to be used to spec­ify a suit­able level of light­ing. There are also some other mi­nor amend­ments be­ing made to the draft amend­ment to follow cur­rent prac­tices used on con­struc­tion and de­mo­li­tion sites.

As the changes made to the pub­lic com­ment draft are ex­ten­sive, it is pro­posed to re-is­sue the draft stan­dard for a com­bined pro­ce­dure pub­lic com­ment for a six-week pe­riod.

Newspapers in English

Newspapers from New Zealand

© PressReader. All rights reserved.