AS 4852.1:2019 pdf free
AS 4852.1:2019 pdf free.Variable message signs Part 1: Fixed signs
The sign enclosure shall be constructed from marine grade aluminium alloy 5251 H32 to conform to AS/NZS 1734. The sign enclosure shall be reinforced and/or braced to facilitate the erection and continued operation of the unit in the intended application.
All external metal sections of the completed enclosure shall be suitably treated (e.g. by a polyester powder coating). The surfaces shall be thoroughly cleaned and subject to the appropriate pre-treatment before the treatment is applied. The finish to the surface shall ensure that deterioration due to atmospheric and/or local environmental conditions has no detrimental effect on the structural integrity or appearance (including fading) of the finished enclosure for a period not less than 10 years.
All sundry components used for connection and/or bracing of the sign onto the support structure shall be manufactured or constructed from suitably protected materials. All steel works shall be hot-dip galvanized in accordance with AS/NZS 4680.
Where access is required to all internal components of a sign for installation, inspection and maintenance purposes, lockable, sliding or hinged (left or right opening only, not top or bottom opening) door(s) shall be provided on the rear of the enclosure. The maximum horizontal width of each door opening shall be not greater than 1.2 m. Each door shall be provided with UV-stable closed-cell door seals and fitted with fastener(s) operated by means of a security key approved by the sign purchaser. Door stays shall be provided to secure the doors in the open position.
Where a double- socket outlet is required it shall be:
(a) complete with an integral 30 mA type II residual current device conforming to AS/NZS 3190;
(b) supplied and protected by a dedicated circuit-breaker in the sign controller’s housing; and
(c) mounted in an accessible position in the sign enclosure such that it provides for unobstructed insertion of mains power plug-packs, and operation of inserted mains power plug-packs with the doors of the sign enclosure closed.AS 4852.1 pdf free download.
