Standards Publication

American National Standard for Electric Lamps—Dimensions for Projection Lamps—Double-Contact, Medium Ring (Special B), Base-up Type

ANSI NEMA C78.1401-2004 (S2023) | Status: Active | ID: 100522

This Standard establishes the dimensions essential to the interchangeability of lamps of the double-contact, medium ring (Special B), base-up type. It is not intended to prescribe either operating characteristics or details of design, such as the shape of the ventilation ports or the method of attachment of the prefocus ring to the base.

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Published Date: February 2, 2024

Number of pages: 8

Staff Contact: Michael Erbesfeld

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Keywords

LIGHTING C78 C-78 C.78 ANSI C78.1401-2004 (R2009, R2016): AMERICAN NATIONAL STANDARD FOR ELECTRIC LAMPS—DIMENSIONS FOR PROJECTION LAMPS—DOUBLE-CONTACT, MEDIUM RING (SPECIAL B), BASE-UP TYPEE