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HID electronics ballast output shorted to earth.

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SurekhaIris

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Hello,
I am working on 250W HID electronic ballast design.It has the input which is connected to 230 V AC ,50Hz mains supply and ballast output is connected to HID lamp.

Please find the attached.

I have one below issue.

While fitting this ballast in streetlight fixture, the output of ballast(which goes to lamp) accidently gets touch to the streetlight fixture body and fixture body is

connected to the earth to provide the earthing or grounding. It means to say ballast output is directly gets shorted with the earth and ballast gets damaged.

I want to provide a electrical protection where in which if the ballast output gets shorted to the earth it hsould not damaged the ballast.

Please kindly help.

Thanks in advance. Ballast Earthing Protection.JPG
 

before giving mains input complete all connection and fittings!!!!
 

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