AS NZS 60598.2.17:2019 pdf free.Luminaires Part 2.17: Particular requirements—Luminaires for stage lighting, television and film studios (outdoor and indoor).
17.7.2 The luminaires for certain types of high-intensity discharge lamp, where an explosion risk is declared by the lamp manufacturer, shall incorporate a device to prevent immediate access to the lamp after switching-off or shall be marked in accordance with the requirements of 17.6.5.
17.7.3 For luminaires with a glass bulb lamp, the luminaire shall be constructed so as to retain particles of glass or quartz produced in the event of the lamp shattering.
Openings through which particles could fall under gravity, with the luminaire in any of its normal operating positions, shall be such as to retain fragments larger than 3 mm.
All other openings shall be constructed in such a way that parts of a shattered lamp cannot leave the luminaire by a direct path.
The luminaire is deemed to comply with the direct-path requirements if openings are screened with a mesh with openings not exceeding 8 mm or are screened with a labyrinth.
If, in front of the lamp, is a protective shield made of glass, the luminaire is deemed to be in accordance with the requirements if, in front of this glass shield, a mesh is mounted with openings not exceeding 12 mm.
If the luminaire is provided with a protective glass shield in the form of a single lens, the openings of the mesh shall not exceed 25 mm. If the luminaire is fitted with a multi-lens objective no mesh is necessary.
These protective shields shall be suitable for the temperature in normal use and their clamping means shall be able to keep a broken shield in position.
Compliance with the requirements of 17.7.3 shall be checked by inspection and by the test of
4.21.4 in IEC 60598-1 with an impact energy of 0,5 Nm.
17.7.4 Hanger (stirrup): Where a hanger is provided, the bearing parts of the hanger shall be capable of supporting six times the weight of the luminaire without appreciable deformation and shall be manufactured from non-combustible materials such as steel or its equivalent.
Parts of the hanger carrying the weight of the luminaire shall be capable of supporting six times the weight of the luminaire without permanent deformation.
Parts of the hanger carrying a proportion of the weight of the luminaire shall be capable of supporting six times the proportion of the weight.
The connection between hanger and luminaire shall be locked against loosening.
Compliance with the requirements of 17.7.4 shall be checked by inspection and by the following test: Add six times the weight of the supported luminaire for 1 h dwell time. After the test the hanger shall show no permanent deformation and no damages impairing safety.
17.7.5 The design of the luminaire shall be such that removable accessories, for example colour frames and barndoors, when properly inserted, cannot fall out of the luminaire from any position of the luminaire, irrespective of its normal burning angle.
17.7.6 A secondary suspension shall be provided for the luminaire, except where the luminaire is arranged for floor mounting or intended for hand-held use. This secondary suspension shall be designed and mounted in such a way that even in the event of the failure of the primary suspension no part of the luminaire can fall.AS NZS 60598.2.17 pdf download.