
Sound Systems For Emergency Purposes
出版:Swiss Standards

專家解讀視頻
Applicable to sound reinforcement and distribution systems for use in effecting a rapid and orderly mobilization of occupants in an indoor or outdoor area in an emergency situation. Applicable to systems using tone signals and to those with voice announcements for emergency purposes.
BS EN 60849 : 1998 - Identical
NF EN 60849 : 1998 - Identical
DIN EN 60849 : 1999 - Identical
I.S. EN 60849:1999 - Identical
EN 60849 : 1998 - Identical
NBN EN 60849 : 1998 - Identical
IEC 60849 : 2.0 - Identical
UNE EN 60849 : 2002 - Identical
BS EN 60849 : 1998 - Identical
I.S. EN 60849:1999 - Identical
NF EN 60849 : 1998 - Identical
UNE EN 60849 : 2002 - Identical
NBN EN 60849 : 1998 - Identical
EN 60849:1998 - Identical
DIN EN 60849:1999 - Identical
NF EN 60849:1998 - Identical
IEC 60849 Ed. 2.0 - Identical
NBN EN 60849:1998 - Identical
I.S. EN 60849:1999 - Identical
UNE EN 60849:2002 - Identical
SS EN 60849 Ed. 1 (1998) - Identical
BS EN 60849:1998 - Identical
DIN EN 60849 (1999-05) - Identical