|
| I replaced my dishwasher and noticed that there is 11V of current on the line even when the breaker is off. I've seen small amounts of current on wiring in my house before but usually 2V or less. Why on earth would I have 11V on a wire?
Thanks in advance. |
Follow-Up Postings:
|
- Posted by ronnatalie (My Page) on Wed, Dec 16, 09 at 18:48
| Your meter is too sensitive. It reads voltage while having a very very tiny current flow through it. The long unconnected wire you're measuring is coupling to other current carrying wire in your house. While there may be some voltage there, if you put any sort of load on the circuit it would disappear. |
|
| stray voltage shows up at the strangest locations. My garage roof (asphault shingles) has a 3 volt charge with respect to an electrical ground wire. Now how do you ground a shingle roof??? |
|
| "stray voltage shows up at the strangest locations. My garage roof (asphault shingles) has a 3 volt charge with respect to an electrical ground wire. Now how do you ground a shingle roof???" Phantom voltage is not exactly the same thing as stray voltage. Phantom voltage has a very high source impedance that only a decent digital meter can detect. Stray voltage is often associated with defects or errors in grounding and neutral connections. If your neighbors neutral is broken, the neutral current may return through water pipes from one house to another. the pole. It is a relatively low impedance source and can deliver enough voltage and current to be dangerous. It is one of the reasons to be very careful about making alterations to the grounding electrodes conductors and water pipe bonds. If you open the connection and stray voltage is present you may find that one side of a supposed 'ground' connection has significant voltage. Before opening grounding electrode connections placing a clamp on ammeter around them is worth the few seconds.
|
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Electrical Wiring Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.