FREE Images for Instructors, by Joe Tedesco, NEC Consultant

[joe tedesco]

I found this in my seminar meeting room while staying at the Best Western in Madison, Wisconsin during the week of 9/18/06

This looks like the LCDI or AFCI called for in:

440.65 Leakage Current Detection and Interruption (LCDI) and Arc Fault Circuit Interrupter (AFCI).

Single-phase cord-and-plug-connected room air conditioners shall be provided with factory-installed LCDI or AFCI protection. The LCDI or AFCI protection shall be an integral part of the attachment plug or be located in the power supply cord within 300 mm (12 in.) of the attachment plug.

Question: How would the real mechanic have installed this receptacle?

 

[cpal]

Seem as if the rec should atleast be flipped vertically

 

[andrew]

400.10

Andrew

 

[infinity]

I found this in my seminar meeting room while staying at the Best Western in Madison, Wisconsin during the week of 9/18/06

This looks like the LCDI or AFCI called for in:



Question: How would the real mechanic have installed this receptacle?

Maybe it was installed before the unit was in place. Besides looking silly what is the violation?

 

[George Stolz]

I share Trevor's confusion...?

 

[joe tedesco]

Confused?

Confused?

These pictures were not intended to describe any violation, just some images for use by an instructor when the subject of AFCI's comes up!

I wondered about the design of the product, and what would happen after the bend in the cord would remain for many years.

 

[George Stolz]

I'd say I share your suspicion, the cord will likely fray after time.

I'd like to call more attention to Andrew's post. I didn't look at the section he cited until just now:

400.10 Pull at Joints and Terminals. Flexible cords and cables shall be connected to devices and to fittings so that tension is not transmitted to joints or terminals.

Exception: Listed portable single-pole devices that are in-tended
to accommodate such tension at their terminals shall
be permitted to be used with single-conductor flexible cable.

FPN: Some methods of preventing pull on a cord from being
transmitted to joints or terminals are knotting the cord, wind-ing
with tape, and fittings designed for the purpose.

This section would be very applicable to this installation, good call.

 

[joe tedesco]

Cord Pendants

Cord Pendants

400.10 applies to cord pendants of those found in Table 400.4 Flexible Cords and Cables.

Also, see 376.70 Extensions from Metal Wireways

Extensions from wireways shall be made with cord pendants installed in accordance with 400.10

Think about using a "kellem" grip

 

[tom baker]

With a brown plate to match the receptacle

 

[joe tedesco]

With a brown plate to match the receptacle

Tom:

Will do, submit a change order for over 200 installed this way in that hotel, and I agree with cpal at least change the ground pin --- flip it! I think that Hot Chile Roger likes the Ground Pin Up?

 

[iwire]

It strikes me that the HVAC unit was installed at a later date than the receptacle.

Unless the EC has a cut sheet showing receptacle orientation (never seen one) how would they know which way up?

 

[joe tedesco]

It strikes me that the HVAC unit was installed at a later date than the receptacle.

Unless the EC has a cut sheet showing receptacle orientation (never seen one) how would they know which way up?

Bob:

True, and it would be problem turning them around, how about the use of a nonmetallic clip or strap that would relieve the strain on the cord?

 

[bkludecke]

This type of thing happens all the time. Although it's annoying and sometimes costly we turn the device right (if we are even there to catch it). It's a matter of pride and workmanship I guess. But then I always insist that the slots on the plate screws are verticle ('cause I'm anal about some things).

 

[joe tedesco]

Is this a criminal act?

Is this a criminal act?

Joseph, I have been in the electrical trade for 30 plus years and would like to share with you a practice becoming familiar by general contractors trying to save time with remodels and making work harder for there subs.
The picture explains it all!.

Thanks, Jeff K

 

[mdshunk]

I think that wrap of blue painter's tape will protect a painter against an electrical shock. Perhaps he should have wrapped some teflon tape on top of it to protect the fitters, another layer of duct tape to protect the tinners, and secure that all with a dab of construction adhesive to protect the carpenters.

 

[iwire]

This type of thing happens all the time. Although it's annoying and sometimes costly we turn the device right

Even in a 100+ room hotel?

I would not unless getting paid to do it.

Even if you could maintain 5 minutes per device your looking at a day and half's labor.

 

[roger]

Tom:

Will do, submit a change order for over 200 installed this way in that hotel, and I agree with cpal at least change the ground pin --- flip it! I think that Hot Chile Roger likes the Ground Pin Up?

Morning Joe, actually I do, but the orientation shown below is the safest.

Roger