Poke-through connector assembly

Details Poke-through connector assembly Poke-through connector assembly

H - Electricity

02

G

339/62

H02G 3/22 (2006.01)

Patent

CA 2036741

Docket No. 78-271 POKE THROUGH CONNECTOR ASSEMBLY ABSTRACT The present invention discloses a poke-through connec- tor assembly which may be assembled in an aperture within a concrete floor from only one side thereof. The connector includes a molded basket of electrical and thermal insulat- ing material having an upper surface joined to a lower surface by integral columns. A flange extending from the upper surface prevents the connector from passing through the floor aperture, while a spring clip attached to the lower surface of the basket prevents the withdrawal of the connector. An electrical conduit is attached to the lower surface of the basket by the spring clip. Intumescent material placed within the basket expands to fill the aperture within the floor when a fire on the lower surface of the floor heats the connector. The conduction of heat from the fire through the connection is reduced because the insulating basket provides no metal conductive path from the electrical conduit and the spring clip to the upper surface of the basket. Once the basket of the connector fails, the spring clip prevents the connector from falling through the floor aperture, thus maintaining the fire rating of the connector within the floor. 21

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