NBN C 20-001-1978
Electrical structure. Degree of protection provided by the enclosure

Standard No.

NBN C 20-001-1978

Release Date

1978

Published By

BE-NBN

Latest

NBN C 20-001-1978

NBN C 20-001-1978 history

• 1978 NBN C 20-001-1978 Electrical structure. Degree of protection provided by the enclosure
• 1972 NBN C 20-001-1972 Electrical structure, degree of enclosure protection