NF S61-984*NF EN 54-4:1997
Fire detection and fire alarm systems. Part 4 : power supply equipment.

Standard No.

NF S61-984*NF EN 54-4:1997

Release Date

1997

Published By

Association Francaise de Normalisation

Latest

NF S61-984*NF EN 54-4:1997

Replace

NF S61-950:1985

NF S61-984*NF EN 54-4:1997 history

• 2011 NF S61-981:2011 Fire detection and fire alarm systems - Part 1 : introduction.
• 1996 NF S61-981:1996 Fire detection and fire alarm systems. Part 1 : introduction.
• 1985 NF S61-950:1985 FIRE DETECTION EQUIPMENT. DETECTORS. INDICATING PANELS AND INTERMEDIATE ELEMENTS.