Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 73 replies
  • Subscribers 32 subscribers
  • Views 4954 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

The Arc Fault Detection Device… again.

whjohnson
Some humourous but valid observations on AFDDs, the state of the industry, the wiring regs and future amendment requirements.

He also attempts to build a AFFD tester which electrically tests rather than relying upon the mechanical action of the test button on the device itself.

https://www.youtube.com/watch?v=e0ElFaKc_e8

Parents
  • 0
    Actually, what you hope for is an increasing rate of improvement, then a levelling off many years later,  as the installed base of the things increases. This is because initially most fires will occur in buildings that have not yet been upgraded - much like the idea of herd immunity.


    However, I agree,certainly at a very quick glance without extracting any curve fit parameters, there is no indication at all that these devices have accomplished very much.

    I suspect the main benefit is to the finances of the folk selling them.
Reply
  • 0
    Actually, what you hope for is an increasing rate of improvement, then a levelling off many years later,  as the installed base of the things increases. This is because initially most fires will occur in buildings that have not yet been upgraded - much like the idea of herd immunity.


    However, I agree,certainly at a very quick glance without extracting any curve fit parameters, there is no indication at all that these devices have accomplished very much.

    I suspect the main benefit is to the finances of the folk selling them.
Children
No Data

Community Rules & Guidelines