5 - Electrical Installation
Note: ~
When the main power is first applied to the searchlight, the searchlight will carry out a
self-test, it will Pan to the left limit and Tilt down to the limit, once this is complete, the
searchlight will then move to the centre and horizontal, during this please do not try and
operate the searchlight while this test is being carried out. Once the searchlight is back
at centre the searchlight can then be operated normally, by pressing the Panel button on
the control panel.
For safety purposes, only competent personnel should perform the electrical installation. All
equipment should be installed to current Electrical Regulations and Standards.
In order to obtain the maximum light output from the searchlight, it is essential that the full
operating voltage of the lamp fitted be applied to the lampholder contacts.
Method of Electrical Connection
1)
Disconnect the supply before working on the electrical system;
2)
The searchlight must be connected to a fused electrical supply, using suitably sized cable;
3)
If the searchlight is located a considerable distance from the supply, provision must be
made in the cable size in order to overcome the voltage drop.
The following table below indicates the maximum length of cable to be used for the supply
cable, from the junction box to the searchlight:
Searchlight
24v 150w
24v 250w
115v 1000w
230v 1000w
230v 650w
Cable Size (mm²) Distance Max Distance Max Distance Max Distance Max Distance Max
1.5
5 MTRS
3 MTRS
17 MTRS
68 MTRS
105 MTRS
2.5
8 MTRS
5 MTRS
28 MTRS
111 MTRS
171 MTRS
4
13 MTRS
8 MTRS
44 MTRS
176 MTRS
271 MTRS
6
20 MTRS
12 MTRS
69 MTRS
275 MTRS
422 MTRS
10
34 MTRS
20 MTRS
115 MTRS
460 MTRS
707 MTRS
4)
Whenever possible cable terminations should be made below deck and with approved
terminal devices;
5)
If a spare auxiliary fuse or circuit breaker is not available, one of the correct type and rating
should be fitted and connected to a positive supply. It is advisable to locate a bus bar or
main connection and avoid any direct connection to the supply:
6)
For 110/220v AC products, the following colour coding system should be used for the
customer supply cable:
Brown
- Live
Blue
- Negative
Green/Yellow - Earth
Note: This equipment must be earthed.
