NF C23-520:2004
Electrical apparatus for potentially explosive atmospheres - Intrinsic safety "i".

Standard No.

NF C23-520:2004

Release Date

2004

Published By

Association Francaise de Normalisation

Status

Be replaced 2007-03

Replace By

NF C23-579-11:2007

Latest

NF C23-579-11:2012

NF C23-579-11*NF EN 60079-11:2012

Replace

NF C23-520:1995

NF C23-520:2004 history

• 0000 NF C23-579-11:2012
• 2007 NF C23-579-11:2007 Explosive atmospheres - Part 11 : equipment protection by intrinsic safety "i".
• 2004 NF C23-520:2004 Electrical apparatus for potentially explosive atmospheres - Intrinsic safety "i".
• 1995 NF C23-520:1995 Electrical apparatus for potentially explosive atmospheres. Intrinsic safety "i".