In an indoor auditorium wiring project, metal halide lamp fittings were used in ceiling as a cost cutting measure to reduce number of fittings with LED fittings fixed on side walls. During a power point presentation that was mentioned. I expressed my appehension that a metal halide lamp is laible for violent failure and should not be used in such applications. Your comments please.
Metal halide lamps
- Thread starter Sahib
- Start date
- Status
- Location
- Massachusetts
I am surprised an auditorium went with a lamp type that is poor for dimming and has a restrike time.
As far as end of life failure I would not be concerned, MH lamps are used indoors often.
As far as end of life failure I would not be concerned, MH lamps are used indoors often.
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kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
NEC recognizes this as well. If the luminaire doesn't have an enclosed lamp then you must use a lamp designed for open luminaires. They are designed to not rupture as easily during such failures and are designated with "type O". 410.130(F)(5)
ptonsparky
Tom
- Occupation
- EC - retired
The trend here is away from MH and towards either HO fluorescent or LED. I hope they gave you a really good price.
rogertaylorlive
Member
- Location
- Mesa
yeah i agree with you...i have seen similar sort of cases and also reported against them.
- Status