| ID (ISN) del documento | 59099 |
| Número CIS |
92-2018 |
| ISSN - Título de la serie |
Research Reports of the Research Institute of Industrial Safety |
| Año |
1991 |
| Número de serie |
|
| Autor(es) |
Motoyama T. |
| Título |
Resistance against high-voltage, low-current dry arc for electrical insulating materials of organic solids in pressurised air |
| Título original |
Kaatsu kūkichū ni okeru yūki zetsuen zairyō no kōden'atsu shōdenryū āku ni taisuru [en japonés] |
| Información bibliográfica |
10 May 1991, p.75-87. Illus. 6 ref. |
| Resumen |
Standards for insulators, such as ASTM D-495 or JIS K-6911, determine arc resistance at atmospheric pressure. Such criteria may not provide adequate protection when electrical equipment is used in caissons or other high-pressure environments. High-voltage, low-current, dry arc resistance of organic insulating materials was investigated in dry air compressed up to 1.9MPa by slightly modified versions of the ASTM and JIS methods. Specimens tested were a melamine-glass laminated sheet, an epoxy-glass laminated sheet, a phenolic-resin sheet, an ABS-resin sheet and a poly-carbonate resin sheet. When pressure increased, the arc-resistance time of most specimens dropped sharply down to almost one tenth of that under the ordinary atmospheric pressure. The reason is that the electric arcs approach more closely the surface of the test specimen with increasing atmospheric pressure and thereby accelerate carbonisation of the specimen. |
| Descriptores (primarios) |
presión hiperbárica; aisladores; arco eléctrico; aislamiento eléctrico |
| Descriptores (secundarios) |
pruebas del material; normalización |
| Tipo de documento |
D - Artículos periódicos |
| País / Estado o Provincia | Japón |
| Tema(s) |
Electricidad
|
| Broad subject area(s) |
Incendios, explosiones y riesgos mayores
|
| Navegación por categoria(s) |
Electricidad
Hyperbaric pressure
|
