Hi all,
I've got a problem where some ballasts are dying. They are Philips BTA
36L05 and are rated at 220V. They are used in a 240V supply. Unfortunately last time I was onsite I didn't measure the actual supply voltage.
They are used in a rural supermarket and all the ballasts are contained in a steel ventilating mesh enclosure. Each enclosure contains eight ballasts with a spacing of about an inch between them.
Is the difference in voltage rating a likely failure mode?
Regards,
Zed.