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I have a Ballast that we are replacing in a church there are approximately 12 dual lamp T12 Fixtures in parallel drops. The fixtures are all in line - but L1, Neutral and Ground are parallel drops.

After 40 years some ballasts have failed - they are magnetic type 4 wire. We have purchased 5 wire Electronic Ballast to replace some. Upon replacing the first ballast a GE Magnetic Ballast with a Philips QuickPro 60 Electronic Ballast I managed to get a shock installing the lamp. I measured 50 VAC voltage between the FRAME of the Fixture (my ground wire is attached to the frame), and the LAMP GLASS ITSELF - note the GLASS which is what I was touching when I got shocked - the middle of the lamp 6 feet in so I know I was not mistaken in what I touched.

I know I wired the new Ballast Correctly  .

I have a picture attached showing the new Ballast wiring at the TOP of the image and the original magnetic ballast at the bottom of the picture.

My Question is two fold:

Since I have Electronic Ballast and also the other units in parallel have magnetic ballasts could this be causing an issue ?

What could be the problem that I am measuring this 50VAC between the glass and the Frame of the Fixture.

My examples of wiring are correct and I did find the culprit - I will post my answer.

I have a ballast that we are replacing in a church. There are approximately 12 dual lamp T12 Fixtures in parallel drops. The fixtures are all in line -- but L1, Neutral and Ground are parallel drops.

After 40 years some ballasts have failed - they are 4-wire magnetic type units. We have purchased 5 wire electronic ballasts to replace some. Upon replacing the first ballast, a GE magnetic ballast, with a Philips QuickPro 60 Electronic Ballast I managed to get a shock installing the lamp. I measured 50 VAC between the FRAME of the Fixture (my ground wire is attached to the frame), and the LAMP GLASS ITSELF - note the GLASS which is what I was touching when I got shocked - I was touching the middle of the lamp 6 feet in so I know I was not mistaken in what I touched.

I know I wired the new Ballast Correctly.

I have attached a picture showing the new Ballast wiring at the TOP of the image and the original magnetic ballast at the bottom of the picture.

My Question is two fold:

Since I have installed an electronic ballast and the other units in parallel have magnetic ballasts could this be causing an issue ?

What could be the problem that I am measuring this 50VAC between the glass and the frame of the fixture?

My examples of wiring are correct and I did find the culprit - I will post my answer.

I have a Ballast that we are replacing in a church there are approximately 12 dual lamp T12 Fixtures in parallel drops. The fixtures are all in line - but L1, Neutral and Ground are parallel drops.

After 40 years some ballasts have failed - they are magnetic type 4 wire. We have purchased 5 wire Electronic Ballast to replace some. Upon replacing the first ballast a GE Magnetic Ballast with a Philips QuickPro 60 Electronic Ballast I managed to get a shock installing the lamp. I measured 50 VAC voltage between the FRAME of the Fixture (my ground wire is attached to the frame), and the LAMP GLASS ITSELF - note the GLASS which is what I was touching when I got shocked - the middle of the lamp 6 feet in so I know I was not mistaken in what I touched.

I know I wired the new Ballast Correctly .

I have a picture attached showing the new Ballast wiring at the TOP of the image and the original magnetic ballast at the bottom of the picture.

My Question is two fold:

Since I have Electronic Ballast and also the other units in parallel have magnetic ballasts could this be causing an issue ?

What could be the problem that I am measuring this 50VAC between the glass and the Frame of the Fixture.

I have a Ballast that we are replacing in a church there are approximately 12 dual lamp T12 Fixtures in parallel drops. The fixtures are all in line - but L1, Neutral and Ground are parallel drops.

After 40 years some ballasts have failed - they are magnetic type 4 wire. We have purchased 5 wire Electronic Ballast to replace some. Upon replacing the first ballast a GE Magnetic Ballast with a Philips QuickPro 60 Electronic Ballast I managed to get a shock installing the lamp. I measured 50 VAC voltage between the FRAME of the Fixture (my ground wire is attached to the frame), and the LAMP GLASS ITSELF - note the GLASS which is what I was touching when I got shocked - the middle of the lamp 6 feet in so I know I was not mistaken in what I touched.

I know I wired the new Ballast Correctly .

I have a picture attached showing the new Ballast wiring at the TOP of the image and the original magnetic ballast at the bottom of the picture.

My Question is two fold:

Since I have Electronic Ballast and also the other units in parallel have magnetic ballasts could this be causing an issue ?

What could be the problem that I am measuring this 50VAC between the glass and the Frame of the Fixture.

My examples of wiring are correct and I did find the culprit - I will post my answer.