Arc fault breakers on partial new service

[jazer]

Assume latest code adoption. Replacing residential service from weatherhead to panel. Newer panel does not need replaced, just entrance cable. No existing arc fault breakers, am I required to install them when replacing this service even if the panel is not being replaced?

 

[ptonsparky]

We don't have to. Do you have a local inspection program?

 

[Dennis Alwon]

Assume latest code adoption. Replacing residential service from weatherhead to panel. Newer panel does not need replaced, just entrance cable. No existing arc fault breakers, am I required to install them when replacing this service even if the panel is not being replaced?

No you do not and even if the panel is replaced you should not be required to install arc faults. Read 210.12(B)

 

[jazer]

210.12B could be taken either way.... is breaker replacemnet considered circuit modification? Hmmmmm

 

[Sierrasparky]

No you do not and even if the panel is replaced you should not be required to install arc faults. Read 210.12(B)

That really depends on the code version.
That is why you submitted for a change to the 2014. Unfortunately that created a problem for earlier codes not yet adopted.

 

[al hildenbrand]

210.12B could be taken either way.... is breaker replacemnet considered circuit modification? Hmmmmm

This has been a recurrent question for a couple Code cycles. Some inspection authorities have, in fact, requested the AFCI breakers because of the possible interpretation of the word "modifications".

The forthcoming 2014 finally clarifies the situation with:

2014 National Electrical Code
210.12(B) Branch Circuit Extensions or Modifications - Dwelling Units
Exception. AFCI protection shall not be required where the extension of the existing conductors is not more than 1.8 m (6 ft.) and does not include any additional outlets or devices.