Kenwood dryer..got hit by the ground - Page 2 - Electrician Talk - Professional Electrical Contractors Forum
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Old 03-15-2018, 06:36 PM   #21
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3)Buy a 4-wire dryer cord, and install it. I don't even see a bonding strap on the dryer connection, but if there is one, chop the bastard.
The bonding strap is that green wire that is screwed to the frame. It was supposed to be moved to the neutral screw when they attached the 3-wire cord, but it wasn't. Just like the way no locknut was put on that connector holding the cord to the dryer. This is what you get when you allow delivery people to do electrical work.
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Old 03-30-2018, 09:05 AM   #22
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I'm going back to this job today to see what's going on. They were supposed to call PS EG to service the machine now I have to fix the wire. Just to double-check, I'm driving right now, if the three prong was changed into a 4 prong how do I separate the ground and neutral inside the machine in case I have to thanks I just want to make sure
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Old 03-30-2018, 11:13 AM   #23
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I'm going back to this job today to see what's going on. They were supposed to call PS EG to service the machine now I have to fix the wire. Just to double-check, I'm driving right now, if the three prong was changed into a 4 prong how do I separate the ground and neutral inside the machine in case I have to thanks I just want to make sure
You don’t.
In the old days when we only needed a 3wire plug, the only item needing a neutral was the timer and ding bell.
Just like modern motion switches that load was considered to small to worry about on the ground.


If your modern dryer installation requires a 4 wire plug, install it.
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Old 03-30-2018, 02:33 PM   #24
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I'm going back to this job today to see what's going on. They were supposed to call PS EG to service the machine now I have to fix the wire. Just to double-check, I'm driving right now, if the three prong was changed into a 4 prong how do I separate the ground and neutral inside the machine in case I have to thanks I just want to make sure
You'll have to look at the terminals in the appliance. There is normally a bonding jumper you connect in the appliance for three wire cords going to old three prong receptacles. If it was properly installed in the first place, that bonding jumper should be connecting the frame of the dryer to the neutral terminal in the dryer. Don't assume it was installed correctly by the delivery person.

When you replace the receptacle with a four wire cord, you'll need to remove that bonding jumper, and connect the ground wire of the four wire cord to the ground terminal. If you don't do so, you'll have the neutral and the EGC in parallel, and you don't want that.
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Old 03-31-2018, 07:39 AM   #25
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When doing generators of late, and separating those grounds and neutrals, we've been told to change those three wire range and dryer circuits to four wire.
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Old 03-31-2018, 09:44 AM   #26
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When doing generators of late, and separating those grounds and neutrals, we've been told to change those three wire range and dryer circuits to four wire.
Is that coming from the inspector?
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Old 03-31-2018, 05:28 PM   #27
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It was a rational explanation, and safe to say I've forgotten the chain of thought. So if I'm doing a whole house transfer switch, I just add the four wire upgrade to either or both dryer and range.
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Old 04-01-2018, 09:00 AM   #28
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It was a rational explanation, and safe to say I've forgotten the chain of thought. So if I'm doing a whole house transfer switch, I just add the four wire upgrade to either or both dryer and range.
The whole 3 wire range and dryer deal was only permitted in SE cable that originated in the service equipment. By moving the service disconnect ahead of the panel you would be creating a code violation as the SE would no longer be terminated at the service equipment.
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