ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#5555 - 11/25/01 05:59 PM Probability Map of Device Failure Fire Risk
sparky66wv Offline
Member
Registered: 11/17/00
Posts: 2232
Loc: West Virginia


Click Here if chart is not visible...

If that doesn't work, copy and paste this URL into your address bar:
http://kellyelectric.electrical-contractor.net/photos/Chart.jpg

If that doesn't work, go here .

A rough probability based upon hypothesis (read: BS) concerning the risk of fire for device failure. This could also be applied to splices. The chart shows a minimal (but not 0%) risk before the arcing takes place, rises to peak, then settles back down to a moderate risk.

What are your feelings on this?

Is this a reasonably accurate description?

[This message has been edited by sparky66wv (edited 11-25-2001).]
_________________________
-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Top
Work Gear for Electricians and the Trades
#5556 - 11/26/01 04:20 AM Re: Probability Map of Device Failure Fire Risk
Redsy Offline
Member
Registered: 03/28/01
Posts: 2056
Loc: Bucks County PA
It seems incomplete to me.
Are they saying that once a device has failed the likelihood of fire increase to a certain point in time and then decreases if a fire hasn't already occurred?
Or are they saying that as a device ages, the risk of fire increases over time until a point at which, if a failure hasn't occurred yet, the likekihood of one occurring will decrease?
Top
#5557 - 11/26/01 04:01 PM Re: Probability Map of Device Failure Fire Risk
sparky66wv Offline
Member
Registered: 11/17/00
Posts: 2232
Loc: West Virginia
Sorry, I thought of this while troubleshooting a house the other day. I was trying to find a way to explain to a customer the risk probability of "leaving things the way they are and fixing them when they go bad" type of thinking... you know, the "If it ain't broke, don't fix it" mentality.

Of course, what was I thinking... I don't want or need the work, couldn't find the problem, rigged the gas furnace so that it would work and told her to call another electrician. One of those "it'd be easier if you bulldoze it to the ground and start over" type jobs... Lot's of DIY work, falsely grounded receptacles, twist-n-tape splices, etc.

She asked if it was safe, which started me on the tangent...
_________________________
-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Top

Member Spotlight
Member Since: 05/03/03
Posts: 1137
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
1 registered (HotLine1), 81 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
KrmtFrg, Stack, Scotto, Freecrowder, clee512

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals