|HID BALLAST TROUBLESHOOTING
Remote ballasts mounted in groups in a panel box must dissipate the heat generated by the ballasts, or there is a great risk of overheating.
Spacing between these ballasts is critical, and a minimum of 12 inches must be maintained between each ballast. Furthermore, the ballasts must not be directly mounted to a non-metallic surface.
F-can ballasts must be spaced with mounting brackets, thus enabling air to flow under the ballast base.
Ballast to lamp (BTL) distance and wire size must also be taken into account when remotely mounting a ballast. For ballasts using an ignitor, the BTL is limited by the ignitor used. A long range ignitor might be required. Please refer to the ignitor specifications for more details.
BTL is determined by wire size for ballasts without ignitors. The size of the wire is related to voltage drop, and voltage drop to the lamp must remain below 1%. The wire used must have a voltage rating greater than that of the ballast’s open circuit voltage.