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CISDOC database
| Document ID (ISN) | 38661 |
| CIS number |
82-1814 |
| ISSN - Serial title |
0013-4384 - Electrical Review |
| Year |
1981 |
| Convention or series no. |
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| Author(s) |
Lord H., Davidson L. |
| Title |
Fault arc detection within flameproof enclosures |
| Bibliographic information |
23 Feb. 1981. (Available as reprint REE 0452. 1p. Illus.) |
| Abstract |
An electrical fault arcing across certain plastic insulating materials within a flameproof enclosure can render traditional flameproof protection ineffective. Discussion of the problem and description of a solution which has recently been developed. Experiments with several devices (light, smoke, heat and pressure detectors) showed that a bi-metal, bi-stable thermostat was the most suitable, small, simple, reliable and cheap device to apply a low level of earth leakage to one phase to cause the back-up protection to trip out, thus preventing ignitions in flameproof enclosures. Table of tripping times for this thermal detector (arc current 400A, open circuit voltage 400V, arc power 120kW). |
| Descriptors (primary) |
electric arc; insulating materials; thermostatic detectors; flameproof construction; explosive atmospheres |
| Descriptors (secondary) |
description of equipment; plastics; applied research; ignition temperatures; fire prevention; fire hazards |
| Document type |
D - Periodical articles |
| Subject(s) |
Fire and explosions
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| Broad subject area(s) |
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| Browse category(ies) |
Explosions
Electricity
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