Sub panel hook up?

Old 11-28-03, 08:25 AM
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Post Sub panel hook up?

After getting several shockers for bids to do a re direct on my service line to my panel box I learned that in my state (Wa.) that I can do the work myself. The moving of the wire isn't the hard part. I have a 100 Amp sub panel (cutler hammer) that I want to also install. My question is that the term floating nutral bar has come up...what does this mean and is there a diagram I can use to reference to when I hook up my sub panel.


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Old 11-28-03, 08:31 AM
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A little more information is needed. What does re-direct your service line mean? Do you need to have a new service riser installed? This usually cannot be done by a homeowner. If you are allowed to do the work it will most definitely need to be inspected.

Floating neutral??? Maybe someone else has heard that one.
Old 11-28-03, 10:32 AM
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In a sub-panel the neutral (grounded) conductor and the safety ground (grounding) conductor are not bonded. The panel as purchased will typically have a green bonding screw tying the neutral bar to the metal of the panel box. This screw must be removed. A ground bar must be added that is bonded to the box. All grounds must land on the ground bar, and all neutrals must land on the neutral bar. The panel must be hooked to the main panel using a 4-wire connection. 2 hots, 1 neutral, and 1 safety ground.
A sub-panel is sometimes refered to as having an isolated or floating neutral since it is not bonded to earth ground in the panel.
Old 11-28-03, 10:33 AM
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Floating Neutral????? Are you sure that is the term quoted? Maybe its refering to a open neutral or a shared neutral {as in a 3 wire circuit}.Could be a different term for for one of those stated above. I'd investigate further from a local

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