AS NZS 2293.3:2018 pdf free
AS NZS 2293.3:2018 pdf free.Emergency lighting and exit signs for buildings
This type of exit sign is also referred to as a‘dual function exit sign’ for the purposes of this series. A sign consisting of white symbols on a green background, in accordance with Figure 3.1, both being light emitting or light transmitting, or a sign consisting of light emitting or light transmitting green symbols on an opaque background in accordance with Figure 3.3 either having an emergency classification assigned in accordance with Appendix C.
Additional background areas are those areas on the face of an exit sign that are not part of any pictorial element but are of the same colour as the background portion(s) of the pictorial element(s). Additional background forms part of a single element sign to ensure that the minimum size of a single element sign is consistent in proportion with dual element signs. Any areas of the face of a sign apart from the pictorial elements,additional background as defined above and allowable borders is designated as optional additional background. Refer to Figures 1.1 and 3.4(b).
For the purpose of assessing conformance with the requirements of Clause 2.4.1,the following conditions shall apply:
(a) Before the emergency luminaires or exit signs are operated they shall be conditioned by connection to the normal supply in an ambient atmosphere at 25 ± 2°C for a period of at least 1 h.
(b) Centrally-supplied emergency luminaires or exit signs shall be operated at their rated voltage or, where marked for operation within a range of voltages, the lowest marked voltage.
(c) Self-contained emergency luminaires or exit signs shall utilize their in-built battery supply but the battery shall be in the fully charged state at the commencement of each assessment.
For the assessment of light output required following a 15 min period of operation, the battery shall be in the fully charged state at the commencement of that period of operation. Loss of supply shall be simulated immediately afterwards for assessment of conformance with the light output criteria.AS NZS 2293.3 pdf free download.
