Title:
PROTECTING ELECTRICAL DISTRIBUTION EQUIPMENT AGAINST OVERHEATING
Document Type and Number:
WIPO Patent Application WO/2014/006356
Kind Code:
A3
Abstract:
Sensor apparatus for sensing overheating along a linear array of electrical connections, the apparatus including one or more linear carriages (7) adapted to fit over the linear array of connections to be monitored, the or each carriage including a plurality of spaced-apart thermal switches (11) sandwiched between a pair of metal busbars (12), the busbars being electrically connectable to a monitoring circuit which triggers an alarm when the circuit is closed by activation of one or more of the thermal switches. In an alternative approach where only one or a few electrical connections are to be monitored, individual thermal switches are mounted in hollow metal sensor plugs (9) which include terminal pins (14) and a two-core exit cable (8).
Inventors:
HEATHCOTE DAVID WILLIAM (GB)
Application Number:
PCT/GB2013/000289
Publication Date:
February 27, 2014
Filing Date:
July 02, 2013
Export Citation:
Assignee:
INDUMISSION LTD (GB)
International Classes:
H01H37/04; H01H37/00; H01H71/08; H02H3/00
Domestic Patent References:
| WO1996037025A1 | 1996-11-21 |
Foreign References:
| US20080191833A1 | 2008-08-14 | |||
| FR2767925A1 | 1999-03-05 | |||
| EP2408073A1 | 2012-01-18 |
Attorney, Agent or Firm:
HALSTEAD, Richard Ralph et al. (Laine & James LLPEssex Place,22 Rodney Road,Cheltenham, Gloucestershire GL50 1JJ, GB)
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