Electrical Code…
The process of supplying an enclosure with a protective gas with or without continuous flow, at sufficient pressure to prevent the entrance of combustible dust or ignitable fibers/flyings.
(National Electrical Code® 100-1)
Building Trades Resource
Electrical Code…
The process of supplying an enclosure with a protective gas with or without continuous flow, at sufficient pressure to prevent the entrance of combustible dust or ignitable fibers/flyings.
(National Electrical Code® 100-1)