Electrical · E-V36Y6

*Bearing The Ul Classification Marking

Materials

Concrete Reinforced Concrete Steel Masonry / CMU Metal (misc.)

Elements

Walls Floors / Slabs Anchors / Embeds Reinforcing Roof / Floor Openings

About this detail

This firestop assembly accommodates a through-penetrant consisting of one metallic pipe or conduit installed concentrically or eccentrically within a minimum 4-1/2 inch thick reinforced lightweight or normal weight concrete floor or concrete block wall. The maximum diameter of the opening is 30-7/8 inches with an annular space ranging from zero to 7/8 inches. Permissible penetrants include steel pipe up to 30 inches in diameter, copper pipe or tubing up to 6 inches, steel conduit up to 6 inches, and electrical metallic tubing up to 4 inches. The annular space is sealed with a minimum 1/2 inch thickness of fill material applied flush with the top surface of the floor or both surfaces of the wall. At point-contact locations between the pipe and concrete, a minimum 1/4 inch diameter bead of fill material is applied at the interface.

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