fmtjfw
Senior Member
- Location
- Fairmont, WV, USA
Section/Paragraph: 210.12(B) Exception.
Added Text
210.12(B) Branch Circuit Extensions or Modifications -- Dwelling Units.
In any of the areas specified in 210.12(A), where branch-circuit wiring is modified, replaced, or extended, the branch circuit shall be protected by one of the following:
(1) A listed combination-type AFCI located at the origin of the branch circuit
(2) A listed outlet branch-circuit type AFCI located at the first receptacle outlet of the existing branch circuit
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.
Substantiation
90.1(A) states: "The purpose of this Code is the practical safeguarding of persons and property from hazards arising from the use of electricity." AFCIs are required in the Code in circumstances designed especially to protect lives.
Electrical fires are much more prevalent in older structures than newly built ones. The purpose of 210.12(B) and 406.4(D)(4) is to introduce the additional safety provided by AFCI protection in older structures. The exception impedes the requirement of that additional safety.
Some persons have suggested that if you are replacing a receptacle under 406.4(D)(4) you can evade the requirement for AFCI protection for the replacement receptacle by merely extending the wiring to the receptacle by splicing additional conductor(s) and use this exception.
Inserted Deleted
Added Text
210.12(B) Branch Circuit Extensions or Modifications -- Dwelling Units.
In any of the areas specified in 210.12(A), where branch-circuit wiring is modified, replaced, or extended, the branch circuit shall be protected by one of the following:
(1) A listed combination-type AFCI located at the origin of the branch circuit
(2) A listed outlet branch-circuit type AFCI located at the first receptacle outlet of the existing branch circuit
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.
Substantiation
90.1(A) states: "The purpose of this Code is the practical safeguarding of persons and property from hazards arising from the use of electricity." AFCIs are required in the Code in circumstances designed especially to protect lives.
Electrical fires are much more prevalent in older structures than newly built ones. The purpose of 210.12(B) and 406.4(D)(4) is to introduce the additional safety provided by AFCI protection in older structures. The exception impedes the requirement of that additional safety.
Some persons have suggested that if you are replacing a receptacle under 406.4(D)(4) you can evade the requirement for AFCI protection for the replacement receptacle by merely extending the wiring to the receptacle by splicing additional conductor(s) and use this exception.
Inserted Deleted