| Document ID (ISN) | 58742 |
| CIS number |
92-1685 |
| ISSN - Serial title |
0017-9078 - Health Physics |
| Year |
1991 |
| Convention or series no. |
|
| Author(s) |
Chou B.R., Cullen A.P. |
| Title |
Evaluation of ocular hazards due to electric arc flash at an in-line switch |
| Bibliographic information |
Oct. 1991, Vol.61, No.4, p.473-479. Illus. 15 ref. |
| Abstract |
The ocular damage resulting from operation of a solid blade pole-mounted in-line electrical switch at between 16 and 17kV with current loads between 38A and 340A was investigated. Spectroradiometric data for the electric arcs produced as the switch was opened were obtained over the waveband 200-1500nm. The eyes of rabbits were exposed to the flash arc at a distance of 2m. The ocular tissues were assessed clinically and histologically up to 48h postexposure. Threshold damage was clinically detectable only in eyes exposed to a 340A arc. It is concluded that at the normal current loads on a 17kV electric power transmission line, the principal oculovisual hazards are due to molten metal fulminated from the switch by the arc, and after-images due to the bright visible light flash. At a working distance of 2m the ultraviolet ocular hazard is negligible. Adequate eye protection is provided by clear polycarbonate safety lenses. |
| Descriptors (primary) |
electric arc; electric power transmission; eye injuries; safety spectacles; overhead electric lines |
| Descriptors (secondary) |
molten materials; tissue damage; animal experiments; electric power generation |
| Document type |
D - Periodical articles |
| Country / State or Province | Canada |
| Subject(s) |
Electricity
|
| Broad subject area(s) |
Electrical safety
|
| Browse category(ies) |
Electricity
Face and eye protection
|
