Revision of AS/NZS 1158 Part 6 Luminaires: an exercise in reliability, safety and energy efficiency
By Alec Fisher
This Standard first appeared in 1990 as AS 3771 Road lighting luminaires with integral control gear and was based on documents prepare by the, then, Electricity Supply Association of Australia. The objective of the Standard was to prescribe requirements, based on materials known to be effective in application, so that the luminaires could be expected to have a target service life of at least 15 years (now 20 years) under the range of adverse conditions likely to be met in practice. Similarly, lamp types and ratings known to be reliable were also prescribed. Whilst the introduction of new technology was not to be discouraged it would only be prescribed in the Standard only after evidence of satisfactory long term performance
These principles have guided the subsequent revisions of the Standard, the first in 1998. In 2004 it become a joint Australian/ New Zealand Standard and, importantly, as an integral part of the 1158 series Lighting for roads and public spaces as Part 6 Luminaires. The new edition is in the same mould with more emphasis on reliability and safety together with the current emphasis on energy efficiency.
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