ID (ISN) del documento | 38661 |
Número CIS |
82-1814 |
ISSN - Título de la serie |
0013-4384 - Electrical Review |
Año |
1981 |
Número de serie |
|
Autor(es) |
Lord H., Davidson L. |
Título |
Fault arc detection within flameproof enclosures |
Información bibliográfica |
23 Feb. 1981. (Available as reprint REE 0452. 1p. Illus.) |
Resumen |
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). |
Descriptores (primarios) |
arco eléctrico; materiales aislantes; detectores termostáticos; construcción antideflagrante; atmósferas explosivas |
Descriptores (secundarios) |
descripción del material; materias plásticas; investigación aplicada; puntos de inflamación; prevención de los incendios; riesgos de incendio |
Tipo de documento |
D - Artículos periódicos |
Tema(s) |
Incendios, explosiones
|
Broad subject area(s) |
|
Navegación por categoria(s) |
Explosions Electricidad
|