| ID (ISN) del documento | 31365 |
| Número CIS |
79-647 |
| Año |
1978 |
| Número de serie |
|
| Título |
Standard for safety - Portable electric light units for use in hazardous locations, Class I, Groups C and D, and Class II, Group G. |
| Información bibliográfica |
ANSI/UL-1977, Underwriters' Laboratories, 207 East Ohio Street, Chicago, Illinois 60611, USA, 1 May 1978. Standard approved on 9 Nov. 1977. 16p. Illus. Price: US-$3.50. |
| Resumen |
This 4th edition of the standard, approved as American National Standard, updates previous editions. It lays down requirements for portable electric lighting units for indoor use in hazardous locations, in accordance with the U.S. National Electrical Code (CIS 78-31). Sections are devoted to: construction (protection of glass parts; joints in lamp enclosure; seal between lamp and terminal compartments; supply connections; external metal parts; grounding; switches, etc.); performance (temperature; thermal shock on glass parts; explosion and hydrostatic tests; grain dust penetration; stability, etc.); manufacturing and production tests; marking. |
| Descriptores (primarios) |
lugares con peligro de explosión; Estados Unidos; material eléctrico de seguridad en explosión; iluminación portátil; lámparas de linternas |
| Descriptores (secundarios) |
atmósferas explosivas; seguridad eléctrica; seguridad incorporada; pruebas del material; norma; marcado |
| Tipo de documento |
F - Notas informativas, directrices prácticas, normas |
| Tema(s) |
Electricidad
|
| Broad subject area(s) |
|
| Navegación por categoria(s) |
Lighting and colour
Explosions
|
