DATE:
PAGE:
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ISSUE:
6
evolution
EVC-P
PHOTOELECTRIC SMOKE DETECTOR
INSTRUCTION MANUAL
of
5
NISM/EVC-P/01
01
Section 8 - ENVIRONMENTAL
PARAMETERS
Temperature Considerations:
Over the range from -10
o
C to +55
o
C.
Humidity:
Relative Humidity of up to 95%, measured at 50
o
C, non
condensing.
Section 9 - EMC
Installation
The installation shall be in accordance with the
regulations either of the approval body for an approved
system, or otherwise, to the national code of practice/
regulations for the installation of the fire alarm system,
e.g. BS 5839 part 1.
Electromagnetic Compatibility (EMC)
On a site where there is an unusually high level of
potential electrical interference, e.g. where heavy
currents are being switched or where high levels of R.F.
are prevalent, care then must be taken in the type and
routing of cables. Particular care should be given to the
separation of zone wiring from the cable carrying the
interference.
