For fluorescent fixtures, is the maximum labeled wattage of the future used for power density calculations?
For example, many manufacturers are using ballasts for fluorescent fixtures that take either a 26W, 32W, or 42W CFL. Although not specifically addressed in the standard, the general intent is that multi-watt compact fluorescent luminaires would be treated in a similar fashion to incandescent luminaires – the highest rated wattage of the ballast would be the wattage to use for compliance. However it may not be possible to change to a different lamp given the geometry and space inside the fixture. If this is the case, the user would want the manufacturer to label their fixture for that rating to avoid a penalty for a multi-ballast rating that cannot be used. This item is currently under discussion within the ASHRAE lighting subcommittee to consider a possible modification to the standard.
Related Questions
- If flushing devices and urinal fixtures are labeled and sold separately, how will purchasers know which components should be used together to ensure water efficiency and performance?
- How can, this mystic power named Rudraksha, be used by mankind for maximum benefit?
- Can fluorescent fixtures really produce the kind of light levels we are used to?
