Elongate electrical assemblies

Details Elongate electrical assemblies Elongate electrical assemblies

H - Electricity

05

B

309/85

H05B 3/34 (2006.01) H05B 3/10 (2006.01) H05B 3/14 (2006.01) H05B 3/56 (2006.01) H05B 6/10 (2006.01)

Patent

CA 1207366

A B S T R A C T ABRIDGEMENT Elongate electrical devices, comprising two conductors with electrical elements connected in parallel between them, have improved performance if the power supply is connected to one conductor at the near end and to the other conductor at the far end. Particu- larly useful devices are heaters, e.g. PTC conductive polymer heaters. The power supply is connected to the far end of the device through a connection means whose electrical properties can be correlated with those of the device in order to obtain a wide range of useful results. For example the connection means can have PTC, NTC or ZTC character and can be a simple conductor or another elongate device. The power supply can be DC or single-phase, two-phase or three-phase AC. A circuit of the invention is shown in Figure 3.

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