ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Extension cords
by Texas_Ranger. 09/25/18 04:37 AM
220/230/240V 60Hz Systems
by gfretwell. 09/23/18 02:50 PM
Inspection camera help
by petey_c. 09/22/18 07:52 AM
Motion detectors and dimmers
by gfretwell. 09/20/18 04:02 PM
Acronis Backup 2017
by gfretwell. 09/16/18 12:46 AM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 20 guests, and 20 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 5 1 2 3 4 5
arc-fault circuit interrupters #76300
01/10/01 09:58 PM
01/10/01 09:58 PM
sparky66wv  Offline OP
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
Arc-fault Circuit Interrupters

Got a few questions concerning this new technology...

How do they work?

How much will they cost?

Why does the NEC think that arcs only happen in bedroom receptacles? (Or realistically, why the requirement for bedrooms over any other part of the house?)

Why not protect every non-dedicated circuit with one? (probably cost prohibitive)

Should I start installing them in new dwellings now, or wait til 2002?


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
2017 / 2014 NEC & Related Books and Study Guides
Re: arc-fault circuit interrupters #76301
01/11/01 09:11 AM
01/11/01 09:11 AM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,360
Hi 66' , i'd like to see a component schematic, like the gfi's. i have'nt found much on line as yet. My state (Vt) is stipulating installation this year 2001, on any new construction.

Re: arc-fault circuit interrupters #76302
01/11/01 11:15 AM
01/11/01 11:15 AM
T
therain4  Offline
Member
Joined: Dec 2000
Posts: 38
Dunmore,Pa. U>S.A.
In the july/augest 2000 issue of IAEI magazine there where two articles on afci's"Arc-Fault circuit interrupters"&"Arc Detection with the AFCI".You may be able to access them from their website.

Re: arc-fault circuit interrupters #76303
01/11/01 12:28 PM
01/11/01 12:28 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,902
NY, USA
I saw those articles also, and thought they were good. But I don't think they are available online. I will write the webmaster at IAEI.

Re: arc-fault circuit interrupters #76304
01/11/01 01:06 PM
01/11/01 01:06 PM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,360
I wonder if they'd be good for those old knob& tube circuits that just won't go away?

Re: arc-fault circuit interrupters #76305
01/11/01 08:29 PM
01/11/01 08:29 PM
V
Vin  Offline
Member
Joined: Nov 2000
Posts: 13
North Jersey
I'm curious about how the local AHJ will be able to properly enforce this code.

If a couple with grown children decide to convert one of their three bedrooms into a den or office will the inspector approve of not having an arc fault in the office? Now let's say he does and a year later the couple put the house up for sale and still list it as a three family do they have to upgrade that "office"? If it got missed during the house inspection during the sale and three months later one of the new owners got electrocuted in the old "office" who would be liable?

Just a thought.

Re: arc-fault circuit interrupters #76306
01/11/01 09:23 PM
01/11/01 09:23 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,902
NY, USA
Vin,

That's a good point. I'm more curious to see what kind of problems develop with nuisance tripping of the AFCI. It is designed to open when arcing can cause a fire and is supposed to be able to tell the difference between a "good" arc (switch turning on) and a "bad" (dangerous) arc . We'll see ...

'66,
They probably only mention bedrooms as a minimum. I'm guessing that it's because they want to give you a little more protection in the place where you are sleeping. By the time a smoke alarm goes off it may be too late to get out of the room.

Re: arc-fault circuit interrupters #76307
01/12/01 07:36 PM
01/12/01 07:36 PM
sparky66wv  Offline OP
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
I finally got a decent explanation for the use in bedrooms, if you consider the widespread use of electric blankets...

I personally don't use E-blankets, so I didn't think of their hazards right away.

Any other ideas on why bedrooms circuits are more likely to arc?


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: arc-fault circuit interrupters #76308
01/12/01 08:49 PM
01/12/01 08:49 PM
Tom  Offline
Member
Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
Cost will be about $40 to $50 wholesale.

I personally know of two fires in my area that could have been prevented by AFCI's. Both fires were in bedrooms, luckily, only moderate property damage was involved.


Few things are harder to put up with than the annoyance of a good example.
Re: arc-fault circuit interrupters #76309
01/16/01 02:18 AM
01/16/01 02:18 AM
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Look here for information on the AFCI:
http://www.homesafetycentral.com/pdf/afci.pdf


Joe Tedesco, NEC Consultant
Page 1 of 5 1 2 3 4 5

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
CDS
CDS
Nicholson Ga
Posts: 34
Joined: June 2006
Show All Member Profiles 
Top Posters(30 Days)
Admin 13
BigB 4
Popular Topics(Views)
249,453 Are you busy
187,374 Re: Forum
176,714 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.037s Queries: 15 (0.008s) Memory: 1.0287 MB (Peak: 1.2066 MB) Zlib enabled. Server Time: 2018-09-25 15:01:16 UTC