Thales 421, Operation And Maintenance, Page: 35 / 256

LLZ 421
Operation and Maintenance Installation
ILS 420
2−7
Ed. 01.04 SOAC
2.3.3.2 Mains Power Supply for Shelter
Before any mains installation is performed the mains supply to the shelter has to be interrupted.
WARNING
Works on electrical installations of up to 230 VAC must be performed by skilled and legiti-
mate personnel only. Danger of electric injury or hazards.
− Check that the mains power supply feeder cable to the shelter is dead. Otherwise switch off mains
on the corresponding power supply distribution of the airport.
− Connect mains power supply feeder cable to the mains distribution box in the shelter: Connect
lines L1, L2, L3 and N to the correspondent terminals (Fig. 2−9/17,16).
1 Circuit breaker F1, F3 to F9
2 Time lag relay TR3
3 Relay D3
4 Table circuit breaker assignment Schutzschalterzuordnung"
5 Residual current breaker FI1
6 Select switch S2 for air conditioner 1 or 2 as master
7 Equipment−on indication H1 for air conditioner
8 Main switch/breaker FS1
9 Overvoltage arrester
10 Time lag relay TR2
11 Time lag relay TR1
12 Relay C1
13 Relay C2
14 Output terminal bar (to the sinks)
15 Earthing bar
16 Ground terminal
17 Terminals for mains supply lines L1, L2, L3
18 On/Off switch for interior lights
19 Potential equalisation bar
20 Main earthing connector
21 3 cell cable duct
22 Protective tube for mains cable
23 Protective tube for data cable
left shelter wall, inner view
21 22
23
1 2 3
4
5
6
7
8 9
11
12
13
10
14
17
15
16
19
20
18
Fig. 2−9 Mains distribution box in the shelter