(Topic ID: 207228)

Do you ground your ungrounded EMs? (poll)

By spinal

6 years ago


Topic Heartbeat

Topic Stats

  • 97 posts
  • 19 Pinsiders participating
  • Latest reply 1 year ago by yancy
  • Topic is favorited by 9 Pinsiders

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Topic poll

“Do you ground your ungrounded EMs?”

  • No, if it's a 2-prong cord it stays a 2-prong cord 32 votes
    39%
  • Yes, I replace my 2-prong cords with 3-prong but only attach the ground to the transformer base 33 votes
    40%
  • Yes, I replace my 2-prong cords with 3-prong and also attach ground wires to all external metal parts (legs, lockdown bar, coin door, rails, shooter rod etc.) 17 votes
    21%

(82 votes)

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#24 6 years ago
Quoted from Darcy:

Can post pictures tomorrow afternoon. Or possibly this afternoon. Gottlieb pins that were exported and made to go to Canada have a stamp on the motor board, by the game counter.

We've seen the occasional shielded cage over the transformer too, those crazy Canadians...

#80 6 years ago
Quoted from PinballFever:

Is there a way to ground the machine even if you use a 2 wire power cord?

The white return of any circuit is tied to earth ground in the panel...

#91 6 years ago
Quoted from jrpinball:

That's true in many cases, but it does not automatically ground your two prong plug games. They're not grounded, period. Whether one sees this as being necessarily hazardous or not is what this discussion really centers on.

Of course, you certainly would not tie the white to any metal in a game, this creates nasty ground loops. But there still is a path to ground. If something shorts between the two leads then the breaker will pop. I just moved into a new house, all the circuits are GFI, in effect giving me grounding in my 2 wire games. Any leakage (me lifting the slam switch in bare feet on concrete slab) and the GFI will trip. When I replace a 2wire cord with a 2wire cord I always polarize it...

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