H - Electricity – 02 – B
Patent
H - Electricity
02
B
H02B 1/38 (2006.01) E05C 7/00 (2006.01) E05C 9/00 (2006.01) H02B 1/06 (2006.01) H02B 1/30 (2006.01) H05K 5/03 (2006.01)
Patent
CA 2561695
An arc-resistant door and casing design having a frame structure covered by a skin enhancing protection from damage and injury resulting from explosion and internal electrical fault. Thru-the-door breaker operation is provided by a racking mechanism having a threaded shaft operated by a user outside the door. An air cooling system for an arc-resistant switchgear cubicle having at least one insulated ventilation shaft longitudinally at a side of the cubicle whereby cooling air is drawn into the shaft from an inlet at a top end of the shaft and enters into the cubicle through an outlet of the shaft provided at a bottom area of the cubicle by convection. The cooling air mixes with warm air inside the cubicle and hot exhaust air flows upward to exit through at least one blow vent at a top area of the cubicle.
J.r. Stephenson Mfg. Ltd.
Riches Mckenzie & Herbert Llp
LandOfFree
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