Re: AFCI maturity poll
The problem is that we just aren't convinced of how effective they are.
Where are they required by the NEC to be used? For the most part in new how construction where you would like to think the wiring should be good anyway, that is less likely to fail.
Where may the AFCI be of the greatest benefit if they were to work as they are designed? If they were that great would it prevent fires in older structures where they wiring may be more prone to cause electrical fires due to insulation failures and/or arcing?
Also, if the AFCI was effective in preventing fires due to defective cords on appliances or the abuse of extension cords where line to neutral arcing often can occur one would consider them a benefit in multifamily structures where a failure in on unit can cause the loss of life for many others.
But, in order to make this an important issue the benefits of the AFCI must be real and proved, and the people be convinced of it. You know darned well that the insurance companies would put a lot of pressure of their insured for their use if they recognized an opportunity to reduce insurance losses.
Theory is one thing but convincing people that they do what they are designed to do is a big issue. I personally would like to believe that they are the greatest thing since sliced bread. I have 5 of them in my 20 year old home. But, I couldn't tell others that they are a must unless I saw more documentation of their effectiveness in preventing electrical fires. And I don't think that it will be in new home construction applications.