Luminaires (Lighting Fixtures), Lampholders, and Lamps
410.66 Recessed Luminaire Clearances
Part XI. Recessed Luminaires
New requirement address the installation of recessed Non-Type IC luminaires where insulation is required or planned.
(B) Installation. Where the installation of insulation is required or planned, recessed luminaires not identified for contact with insulation must be provided with a field installed means to prevent insulation from being installed above or within 3 in. of the recessed luminaire's enclosure, wiring compartment, or ballast.
This rule places the responsibility for maintaining luminaire-to-insulation clearance on the electrical installer for recessed Non-Type IC luminaires. Since this is beyond the control of the electrical installer where insulation is installed, it's advisable that you use only Type IC rated recessed luminaires.
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