Version 0.1
6
Batteryless telephone system with public address mode BLTS-1006
1
DESCRIPTION AND OPERATION OF THE SYSTEM
1.1
Description
1.1.1
The System is designed to provide telephone communication both in routine
operation (if power is available or unavailable) and emergencies caused by failure (or de-
energization) of shipborne communication systems.
1.1.2
The SC may be installed in indoor spaces and on open deck.
1.1.3. The SC maintain operation under the following conditions:
a)
operating temperature range:
– minus 15 °С…plus 55 °С – for the SC installed indoors;
– minus 40 °С…plus 55 °С – for the SC installed on open deck;
b)
increased air humidity 100 % at temperature plus 50 °C;
c)
inusoidal vibration within frequency range 1…200 Hz at the following oscilla-
tion amplitudes:
– amplitude ±1 mm – for frequency range 2.0…13.2 Hz;
– acceleration 0.7g (7 m/sec
2
) – for frequency range 13.2…100.0 Hz;
d)
mechanical impacts (multiple), length 10…15 ms and max. acceleration
70 m/sec
2
(7g);
e)
roll and pitch with amplitude ±45° and period 7…9 sec;
f)
tilting angle 45° during 5 minutes;
g)
electromagnetic and magnetic interference;
h)
ingress of water, atmospheric precipitation (for the SC of splash proof type).
1.1.3
The SC maintain operation under the effect of:
a)
limiting temperature minus 60 °С…plus 70 °С;
b)
salt (sea) fog.
1.1.4
The System is designed considering the following documents:
‒
Rules of Russian Maritime Register of Shipping;
‒
Rules of Russian River Register;
‒
Technical regulations on security of the marine transport;
‒
Technical regulations on security of the inland water transport.
