Lighting : LIGHTING-February-2017
18 LIGHTING MAGAZINE | February/March 2017 February/March 2017 | LIGHTING MAGAZINE 19 The types of emergency lights commonly used in Australia include white discs with a small LED indicator, flood lights, battens or circular lights. Battens and circular lights often come with different features allowing them to be used as both emergency lights and everyday fittings. As essential life safety devices, emergency lighting and exit signs are mandatory requirements under the National Construction Code of Australia (NCC) and there are legislative requirements to do with where and how they are installed. The NCC is published by the Australian Building Codes Board. According to the NCC, if the exit from any room does not open into a space with adequate natural light (in the event of a power failure) then emergency lighting and exit signs must be installed. Due to the complexity of the requirements, and the different ways they can be interpreted, building owners often engage consultants or emergency lighting manufacturers to specify the use of emergency lights and exit signs in their projects. Owen Manley, who is the Standards and Regulations Manager at Lighting Council Australia (LCA – the peak body representing Australia’s lighting industry), says the regulations vary a little from state to state, but Queensland has the most stringent. “This is probably because they’ve had a few serious situations like the Childers Palace Backpackers Hostel fire which killed 15 people in 2000,” he says. Notwithstanding that terrible incident, Manley believes that Australian emergency and exit lighting requirements have served us well since AS2293 was first introduced in 1979 as there have been very few large entrapments of people in buildings. But with the advent of the global age and new technologies hitting the market all the time, he says the time has come for a complete rethink. “AS2293 is currently undergoing a major review and I would say technology has, in many ways, forced the issue,” says Manley. “The past technology scenario implied that a lamp might need to be checked and replaced every six months but the increasingly-used LED technology has a much longer life span, so we need to change the Standard to reflect this.” Another new technology drawing attention across the industry is the introduction of photoluminescence (PL) ‘glow in the dark’ signs. In 2014, the NCC implemented an allowance to have PL signs allowed in buildings in Australia, but there are currently no luminaire or maintenance requirements in the Standard and considerable confusion amongst electricians, building owners and building managers as to how PL may be used. “This is another issue being addressed in the new edition of the Standard,” Manley continues. Manley is actively involved in the AS2293 review project, which is also set to become a joint Australia and New Zealand Standard. He convenes the committee responsible for overhauling Part 2 which relates to inspection and maintenance. The other sections under review by different committees are Part 1 which relates to installation and Part 3 which relates to luminaire requirements. He says the Standard has already been out to public comment so the task for his working group is to sift through the comments, agree on resolutions and make changes. “The new edition is due for publication in the second quarter of 2017,” he says. In 2012, a report was commissioned by the Standards Australia committee responsible for Emergency Lighting in Buildings (LG-007) and funded by LCA. In the report, the author, Dr Gordon Watson, identified and explored several Standards, mainly from Europe, that dealt with wayfinding systems and low- level direction finding in smoke-filled environments. Based on this analysis and his own research, Dr Watson (who did his PhD on emergency and evacuation lighting for the aged) made several recommendations. This single or double sided exit Ultrablade exit sign has a low 3.5 Watt power consumption and is available with a 100,000 hour LED. Low-profile housing means only 110mm of ceiling space is required for installation. Image supplied by Clevertronics. The Argonaut PRO batten is a weatherproof LED batten that is available in various sizes and lumen output. Applications include underground car parks, warehouses and stairwells. Image supplied by Clevertronics. The Cleverfit PRO caters for both single-sided and double-sided needs, has a low 3.3 Watt power consumption and can last for up to 100,000 hours. Image supplied by Clevertronics. The Lifelight PRO is a high-powered D50 classification emergency light in a small recessed housing. Image supplied by Clevertronics. According to the NCC, if the exit from any room does not open into a space with adequate natural light (in the event of a power failure) then emergency lighting and exit signs must be installed. As essential life safety devices, emergency lighting and exit signs are mandatory requirements under the National Construction Code of Australia (NCC) and there are legislative requirements to do with where and how they are installed.
Lighting December 2016