Thanks, but I don't need a lesson on the NEC.
FPN's are NOT codes, and are NOT enforceable as code requirements.
Pretty much every qualified electrician I know or have encountered knows this.
Here is your NEC lesson for the day:
NEC
90.5(C) Explanatory Material. Explanatory material, such as references to other standards, references to related sections of this Code, or information related to a Code rule, is included in this Code in the form of informational notes. Such notes are informational only and are not enforceable as requirements of this Code.
Handbook Commentary:
Changed From 2008
Section 90.5(C) was revised by changing FPNs to informational notes. Explanatory material will now be provided in informational notes.
--- In DoIt_Yourself@yahoogroups.com, "J. D. Brown" <jdb8251@...> wrote:
>
> Howdy,
> Â
> Please check your NEC book at 210 Branch Circuits, 210-19(a), FPN. It does list the requirement for the minimum voltage drop or a branch circuit.  Also might keep in mind that if it's the NEC, it's required, not a suggestion.
>
> AGAPE,
> jdb, txredneck
> *****************************************************************************************************
> *****************************************************************************************************
>
> ----- Forwarded Message -----
> >From: petey_racer <petey_racer@...>
> >To: DoIt_Yourself@yahoogroups.com
> >Sent: Wednesday, June 6, 2012 6:13 AM
> >Subject: Re: Fw: [DIY] electric voltage drop to an RV
> >
> >
> >Â
> >
> >There is NO "NEC minimum voltage drop".
> >Dealing with voltage drop is a suggestion in the NEC, NOT a code required subject.
> >
> >--- In DoIt_Yourself@yahoogroups.com, "J. D. Brown" <jdb8251@> wrote:
> >>
> >> Howdy,
> >> ÃÂ
> >> You did not mention the the wire size you are planning to use.ÃÂ At this distance to meet the NEC's minunum voltage drop you are going to need 4/0 THWN cable for this project.ÃÂ If you are going to try to use a B/B transformer then you could drop you could use 3/0 THWN.
> >> ÃÂ
> >> The very max in voltage drop at the farthest used 120V device can not be more than 5% of connected 120V supply.ÃÂ So at the 700' distance you have spec. your voltage can not be below 119.5 volts.
> >>
> >> AGAPE,
> >> jdb, txredneck
> >> *****************************************************************************************************
> >> *****************************************************************************************************
> >> ----- Forwarded Message -----
> >> >From: Dale S <dalu@>
> >> >To: DoIt_Yourself@yahoogroups.com
> >> >Sent: Tuesday, June 5, 2012 9:21 PM
> >> >Subject: Re: [DIY] electric voltage drop to an RV
> >> >
> >> >ÃÂ
> >> >
> >> >Typically a buck and boost will make either a 12.5 VAC or 24 VAC difference.ÃÂ B&B sounds like a sound solution.ÃÂ Unless you are going to have some heavy loads other than AC a B&B may do the job plus you will have a two conductor rather than a three conductor plus Xfmr in the cost.ÃÂ
> >> >Dale in the Flat Lands:----- Politics is supposed to be the second-oldest profession. I have come to realize that it bears a very close resemblance to the first. ~Ronald Reagan
> >> wired wrote:
> >> >I apologize that this is a bit technical of a question, but I know a few people here are technical kind of guys.
> >> >>I am going to run an electric line for a motor home, with aluminum
> >> wire, a distance of 700 feet. The motor home needs 40 amps 120
> >> volts.
> >> >>Voltage drop is a major issue here. My thought is to use a
> >> transformer to either run 240 volts there and step it down to 120
> >> volts . Option 2 is use a buck boost transformer to raise the
> >> 120v. voltage a few volts at the end of the line. What about a
> >> transformer with a regulator to keep the voltage even in varying
> >> loads conditions? Please don't worry about my using aluminum wire
> >> as I know how to properly connect it (I am an electrician). This
> >> is to be used only occasionally for recreation purposes at a pond
> >> (city slickers camping out in town).
> >> >>
> >> >
> >>
> >
> >
> >
>
07 June 2012
Re: Fw: Fw: [DIY] electric voltage drop to an RV
__._,_.___
Please send decorating questions to Interior Motives List - to subscribe send an email to: Interior_Motives-subscribe@yahoogroups.com
.
__,_._,___
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment