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#1
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Electrocuted from neutral
Hi!
I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? I read one posting that said to use the clamp to check for amps. Should I have done this along with checking out how many volts are running through it? Thanks! |
#2
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Electrocuted from neutral
On Dec 30, 11:18*pm, " wrote:
Hi! I have a quick question and wondered if somebody can explain this to me. *While working on some wiring today, I got a bit of a jolt from the neutral wire. *When I tested it with my voltmeter, it read zero (I had the breaker off). *But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. *Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. *One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? *If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? *I read one posting that said to use the clamp to check for amps. *Should I have done this along with checking out how many volts are running through it? Thanks! hmmm if you have a high resistance between this branch of the neutral and somewhere upstream, i.e. closer to the electric box, it will raise the voltage a bit when there is a high current flowing through another neutral on the same branch, if you know what i mean. |
#3
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Electrocuted from neutral
wrote in message ... Hi! I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? I read one posting that said to use the clamp to check for amps. Should I have done this along with checking out how many volts are running through it? *The neutral is a current carrying conductor. It sounds as if the one that you are referring to is part of a multiwire circuit that is shared with the furnace. When the furnace comes on there will be current flowing through it. You should treat it like a live wire even when the circuit breaker is off. |
#4
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Electrocuted from neutral
On Tue, 30 Dec 2008 20:18:27 -0800 (PST), "
wrote: Hi! I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? I read one posting that said to use the clamp to check for amps. Should I have done this along with checking out how many volts are running through it? Thanks! |
#5
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Electrocuted from neutral
On Tue, 30 Dec 2008 20:18:27 -0800 (PST), "
wrote: Hi! I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. You can get a real jolt from a neutral under the right/wrong conditions. ___ Neutrals are current carrying wires.___ Always treat them as such. They are NOT GROUNDS. |
#6
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Electrocuted from neutral
On Tue, 30 Dec 2008 20:18:27 -0800 (PST), "
wrote: I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. Just for clarity can you explain how you were "electrocuted" and are still able to post to Usenet? Was the 'death of Usenet that we've been hearing about for a decade a statement on the status of the posters? A 'bit of a jolt' is hardly electrocution. Jim |
#7
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Electrocuted from neutral
On Dec 31, 5:54*am, "John Grabowski" wrote:
it. *You should treat it like a live wire even when the circuit breaker is off. This is a good rule to practice...but how do you test for this? Thanks for the responses... |
#8
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Electrocuted from neutral
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#9
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Electrocuted from neutral
On Wed, 31 Dec 2008 06:54:34 -0500, John Grabowski wrote:
wrote in message ... Hi! I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? I read one posting that said to use the clamp to check for amps. Should I have done this along with checking out how many volts are running through it? *The neutral is a current carrying conductor. It sounds as if the one that you are referring to is part of a multiwire circuit that is shared with the furnace. When the furnace comes on there will be current flowing through it. You should treat it like a live wire even when the circuit breaker is off. This is probably why the new electrical code does not allow sharing neutrals between circuits. You may want to check to make sure the light circuit is on a different phase than the furnace. Neutrals should never be shared on common phase circuits. Also, get off googlegroups. Many wise NG users block googlegroups because google refuses to deal with NG abusers. Blocking all posts originating from googlegroups eliminates about 90% of the trash posts! Mike D. |
#11
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Electrocuted from neutral
A Multi-Wire Branch Circuit (MWBC) is two hot wires on separate breakers
sharing one neutral. If just one breaker is turned off, the neutral is still carrying electricity for the other circuit. If you disconnect the neutral and something is turned on upstream to the still energized circuit, the upstream neutral will be like a hot wire! For this reason, new code requires a double pole breaker for a MWBC or both breakers to be tie bared. Then both circuits must be turned off at the same time. And for this reason it is a good idea to turn off power to the entire house before doing electrical work. wrote in message Hi! I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? I read one posting that said to use the clamp to check for amps. Should I have done this along with checking out how many volts are running through it? Thanks! |
#12
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Electrocuted from neutral
and work in the dark..... ya, ok.
s "Bill" wrote in message ... And for this reason it is a good idea to turn off power to the entire house before doing electrical work. |
#13
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Electrocuted from neutral
On Wed, 31 Dec 2008 14:47:00 GMT, Doug Miller wrote:
In article , wrote: This is probably why the new electrical code does not allow sharing neutrals between circuits. It does nothing of the kind. so several electricians and inspectors are wrong? |
#14
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Electrocuted from neutral
Michael Dobony wrote:
On Wed, 31 Dec 2008 14:47:00 GMT, Doug Miller wrote: In article , wrote: This is probably why the new electrical code does not allow sharing neutrals between circuits. It does nothing of the kind. so several electricians and inspectors are wrong? Thats why rules are codified. Ask them to show you what rule disallows shared neutrals. About the only common requirement for the typical residential shared neutral installation is that the circuit breaker handles must be interlocked if the outlets are split wired. |
#15
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Electrocuted from neutral
No, i'd say several HUNDRED inspectors and electricians are wrong. And not
just about this topic. s "Michael Dobony" wrote in message ... On Wed, 31 Dec 2008 14:47:00 GMT, Doug Miller wrote: In article , wrote: This is probably why the new electrical code does not allow sharing neutrals between circuits. It does nothing of the kind. so several electricians and inspectors are wrong? |
#16
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Electrocuted from neutral
wrote in message ... On Dec 31, 5:54 am, "John Grabowski" wrote: it. You should treat it like a live wire even when the circuit breaker is off. This is a good rule to practice...but how do you test for this? *No test. When handling the conductors treat them as though juice was flowing. Tape up the bare ends, don't touch the ends, don't let them come in contact with anything else, keep one hand behind your back, etc. I am used to working with hot wires so it is easy for me. |
#17
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Electrocuted from neutral
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#18
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Electrocuted from neutral
Back in 1975 I was a brand new service tech just out of high school
and fresh from manufactuers training, I was nervous but wanted to do EVERYTHING just right! Went to a stock broker in downtown pittsburgh working by reception desk and this gorgeous beautiful model type who was the receptionist..... long blonde hair, big heels and short dress, but tasteful she decorated the office' Anyhow In servicing the machine I followed my new training closely INTENTIONALLY overheated the machine to test the safety switches, which worked fine. let the machine cool, crouched down to reach the reset switch. pushed it and a ball of fire came out of machine, no electric shock but stunned I went from crouched down to flat out on floor, looking up gals dress. The entire office of perhaps 50 people went silent, probably thinking someone just died, and fireball was large the click clak of typewriters stopped you could hear a pin drop Dumb blonde kept asking if I was electrocuted.... third time she asked I was getting up and said if I were I wouldnt be talking to you Anyhow didnt know what I did wrong I finished fast got out of there and went back to our office, when I told my boss what happened he said call the guy who trained you.... Hey I get to call chicago on this job. Trainer when told of my excitement said after you guys left we realized we forgot to tell you guys to always unplug machine before resetting! otherwise a fire ball will come out of machine Well it does and it did we agreed he should call the other trainees, and warn them its rare to remember a specific thing that happened so long ago. excitement wise it ranks right up there with the day I ran a borrowed gasoline garden tiller into the service entrance of our house |
#19
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Electrocuted from neutral
On Jan 1, 9:01�am, Van Chocstraw
wrote: wrote: Hi! I have a quick question and wondered if somebody can explain this to me. �While working on some wiring today, I got a bit of a jolt from the neutral wire. �When I tested it with my voltmeter, it read zero (I had the breaker off). �But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. �Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. �One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? �If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? �I read one posting that said to use the clamp to check for amps. �Should I have done this along with checking out how many volts are running through it? Thanks! Neutrals are live! That's why when you put your ladder near the power line that goes into your meter and touch the bare neutral you die. -- //--------------------\\ � � � � Van Chocstraw �\\--------------------//- Hide quoted text - - Show quoted text - the neutral is the TOP wire of the old style 3 wire overhead lines. Put on the top to help dissipate lightning and high voltage if a high voltage line from above breaks and falls on it. properly grrounded at each service touching a neutral shouldnt kill you, although you might feel a little tickle |
#20
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Electrocuted from neutral
On Dec 30 2008, 10:18*pm, " wrote:
Hi! I have a quick question and wondered if somebody can explain this to me. *While working on some wiring today, I got a bit of a jolt from the neutral wire. *When I tested it with my voltmeter, it read zero (I had the breaker off). *But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. *Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. *One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? *If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? *I read one posting that said to use the clamp to check for amps. *Should I have done this along with checking out how many volts are running through it? Thanks! IMO working with neutrals is far more dangerous than working with hot leads. For these reasons: Hot leads are logical, they terminate at specific devices and they have specific breakers that you can trun off, they are easily identified. To put your body in series with a hot requires that you hold the hot and a neutral or ground, very obvious, breakers are specific also very obvious. Neutrals on the other hand travel througout the house, they are frequently bundled across multiple live branches. When you undo a neutral bundle in a box and you have shut off the breaker you think is correct. That neutral may still be carrying a load on a different breaker. When you undo the bundle then happen to grab two neutrals you could very easily put your body in series with a load carrier. Instant death if you gripped them hard. I have gotten more inadvertent shocks and sparks from neutrals than hots over the years by undoing bundles to get in another neutral in the wire cap, then discovering that I opened a live crcuit on a different branch where I did not trip the breaker. |
#21
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Electrocuted from neutral
On Dec 31 2008, 8:39*am, Michael Dobony
wrote: On Wed, 31 Dec 2008 06:54:34 -0500, John Grabowski wrote: wrote in message ... Hi! I have a quick question and wondered if somebody can explain this to me. *While working on some wiring today, I got a bit of a jolt from the neutral wire. *When I tested it with my voltmeter, it read zero (I had the breaker off). *But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. *Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. *One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? *If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? *I read one posting that said to use the clamp to check for amps. *Should I have done this along with checking out how many volts are running through it? *The neutral is a current carrying conductor. *It sounds as if the one that you are referring to is part of a multiwire circuit that is shared with the furnace. *When the furnace comes on there will be current flowing through it. *You should treat it like a live wire even when the circuit breaker is off. This is probably why the new electrical code does not allow sharing neutrals between circuits. *You may want to check to make sure the light circuit is on a different phase than the furnace. *Neutrals should never be shared on common phase circuits. Also, get off googlegroups. *Many wise NG users block googlegroups because google refuses to deal with NG abusers. *Blocking all posts originating from googlegroups eliminates about 90% of the trash posts! Mike D.- Hide quoted text - - Show quoted text - google groups is great when you cant get NNTP ports opened up on firewalled networks where the NNTP ports are frequently disabled. I use it all the time for this reason. |
#22
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Electrocuted from neutral
Michael Dobony wrote:
On Wed, 31 Dec 2008 06:54:34 -0500, John Grabowski wrote: wrote in message ... Hi! I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? I read one posting that said to use the clamp to check for amps. Should I have done this along with checking out how many volts are running through it? *The neutral is a current carrying conductor. It sounds as if the one that you are referring to is part of a multiwire circuit that is shared with the furnace. When the furnace comes on there will be current flowing through it. You should treat it like a live wire even when the circuit breaker is off. This is probably why the new electrical code does not allow sharing neutrals between circuits. The 2008 NEC makes no change to using common neutrals - they are still allowed. As several people have said, the 2008 NEC requires a common disconnect which can be a handle tie. AFCI circuits can't use a common neutral (unless the AFCI breaker is 240V). That is a limitation of the breaker, not the NEC. (AFCIs include ground fault detection, typically at 30mA.) Because the 2008 NEC vastly expands where AFCI protection is required in houses, the use of common neutrals is effectively much limited. The NEC applies to new wiring, not existing. (A jurisdiction can change that.) -- bud-- |
#23
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Electrocuted from neutral
On Thu, 1 Jan 2009 08:20:42 -0600, DanG wrote:
Since when? Can you cite an article from the NEC? Per several inspectors and electricians. Evidently wrong based upon the response here. |
#24
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Electrocuted from neutral
On Tue, 30 Dec 2008 20:18:27 -0800 (PST), "
wrote: Hi! I have a quick question and wondered if somebody can explain this to me. While working on some wiring today, I got a bit of a jolt from the neutral wire. When I tested it with my voltmeter, it read zero (I had the breaker off). But then, when I grabbed the neutral, I got a tingle. I took my voltmeter and tested it, and it peaked up around 1 to 2 volts, then dropped back to zero. Did it again a few minutes later and the same thing. Upon further investigation, I found that there was one neutral that was going to the furnace (on one circuit) and then up to the sockets on the other circuit. One circuit (the furnace one) was live while the other was dead. Just so I understand, is the reason why I got a tingle was because electricity was flowing through the live circuit? If I turned off the circuit for the furnace along with the other one, would this have prevented me from getting a little shock? I read one posting that said to use the clamp to check for amps. Should I have done this along with checking out how many volts are running through it? Thanks! A 1 or 2 volt reading is nothing to be alarmed about and could be due to resistance differences. A good outlet tester (about $20) will make quick work in testing all the outlets in the circuit. |
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