5 - Electrical Installation
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 should be used for indication purposes only:
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.