AFCI requirement for manufactured homes 2019

Remember, this Standard is 15 years old (2005). I believe the earlier posted 2017 Standard is the most current and accurate!

I believe you are right. Somehow I missed Roy’s post which quoted the same section I did. I got mine off the HUD website (terribly confusing that they don’t update anything). I think the point Marcel was making is that HUD standards supersede State and local (NEC) for manufacture homes. At least that was my confused thinking.

That is true, at least up to a few years ago when HUD changed their policy and combined ‘Manufactured’ and ‘Modular’ into the same group, which also explains the 2017 NEC compliance for both.

Manufactured homes are constructed according to a code administered by the U.S. Department of Housing and Urban Development (HUD Code). The HUD Code, unlike conventional building codes, requires manufactured homes to be constructed on a permanent chassis. Modular homes are constructed to the same state, local or regional building codes as site-built homes.

UL in January 2002 described various types of AFCIs which we summarize here.[4] The first three types of AFCI’s, Branch Feeder AFCIs, Outlet Circuit AFCIs, and Combination AFCIs are the three most basic types of arc fault detectors and are important definitions for the home owner or home inspector to understand:

Branch Feeder AFCIs - basically a special circuit breaker to be installed in the electrical panel and which will protect all of the devices on an individual electrical branch circuit. (15A or 20A 125V single phase wiring.)
Outlet circuit AFCIs - a device installed right in the branch circuit receptacle box. As with GFCIs this device may also protect wiring which is connected “downstream” electrically from the device itself.
Combination AFCIs - this device combines the function of Branch Feeder AFCIs and Outlet Circuit AFCIs and will protect power cords plugged into receptacles protected by the AFCI.

The following are additional types of AFCI’s described by Underwriters Laboratories.
Outlet Branch Circuit AFCIs - this device, which sounds to us just like #2 above, is installed as the first outlet in a string of electrical receptacles on a single circuit; it protects the downstream receptacles.
Portable AFCIs - these devices can be plugged into a conventional electrical receptacle and provide one or more outlets into which additional devices can be connected. This device would be used by contractors working on a building to obtain additional electrical safety when using power tools.
Cord-AFCIs - this device is like the portable AFCI #5 above, but may be incorporated into the permanent power cord of a device or appliance so that when it is plugged into an electrical receptacle the appliance is protected from arc faults.
Leakage Current Detection and Interruption LDCIs - these devices are built into a device or appliance and detect current leakage from the device’s electrical cord. If a hand held hair dryer contained this device and its damaged cord was dangled in a sink filled with water, the LDCI would detect the current leakage and would shut off the device. If you need more, you should find spacialist.