H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 7/20 (2006.01) H05B 3/14 (2006.01)
Patent
CA 2266110
An improved enclosure for housing communications and electronics equipment comprises a heating element fabricated with a positive temperature coefficient material. The enclosure is particularly useful for housing communications equipment and cell site base stations for cellular telephone systems in the outdoors; it has self- regulating heating capabilities that are not dependent upon voltage parameters, thereby enabling its use in diverse geographic locations. In a preferred embodiment, a plurality of PTC heating elements are used and selectively located adjacent a plurality of circuitry regions. DC power may be used to energize the PTC heaters, and the enclosure may be used for telephone equipment operating with AC or DC power.
Aakalu Nandakumar G.
Plaza Daniel
Truong Han Q.
Kirby Eades Gale Baker
Lucent Technologies Inc.
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