Bosch LTC 1271 Series Especificaciones descargar pdf (Pagina 14)

with requirements in NEC code and as recommended

by manufacturer for type of line being protected.

C. Interference Protection: Components shall be

unaffected by radiated RFI and electrical

induction of 15V/m over a frequency range of 10

to 10,000 MHz and conducted interference signals

up to 0.25-V RMS injected into power supply lines

at 10 to 10,000 MHz.

D. Tamper Protection: Tamper switches on detection

devices, control units, annunciators, and other

system components shall initiate a tamper-alarm

signal when unit is opened or partially

disassembled and when entering conductors are cut

or disconnected. Central-station control-unit

alarm display shall identify tamper alarms and

indicate locations.

E. Self-Testing Devices: Automatically test

themselves periodically, but not less than once

per hour, to verify normal device functioning and

alarm initiation capability. Devices transmit

test failure to central-station control unit.

F. Anti-masking Devices: Automatically check

operation continuously or at intervals of a

minute or less, and use signal-processing logic

to detect blocking, masking, jamming, tampering,

or other operational dysfunction. Devices

transmit detection of operational dysfunction to

central-station control unit as an alarm signal.

G. Addressable Devices: Transmitter and receivers

shall communicate unique device identification

and status reports to central-station control

unit.

2.3 ENCLOSURES

A. Interior Sensors: Enclosures that protect

against dust, falling dirt, and dripping non-

corrosive liquids.

B. Interior Electronics: NEMA 250, Type 12.

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