#6/32 screw load

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It is not an electrical question, and is not related to any electrical code. Therefore, I am closing this thread.
 
This is covered by the NEC so I will re-open the thread.

The exception allows two 6-32 screws to hold up to 6 pounds.


314.27 Outlet Boxes.

(A) Boxes at Luminaire Outlets. Boxes used at luminaire
or lampholder outlets in a ceiling shall be designed for the
purpose and shall be required to support a luminaire weighing
a minimum of 23 kg (50 lb). Boxes used at luminaire or
lampholder outlets in a wall shall be designed for the purpose
and shall be marked to indicate the maximum weight
of the luminaire that is permitted to be supported by the
box in the wall, if other than 23 kg (50 lb). At every outlet
used exclusively for lighting, the box shall be designed or
installed so that a luminaire may be attached.

Exception: A wall-mounted luminaire weighing not more
than 3 kg (6 lb) shall be permitted to be supported on other
boxes or plaster rings that are secured to other boxes, provided
the luminaire or its supporting yoke is secured to the
box with no fewer than two No. 6 or larger screws.

(B) Maximum Luminaire Weight. Outlet boxes or fittings
designed for the support of luminaires and installed as
required by 314.23 shall be permitted to support a luminaire
weighing 23 kg (50 lb) or less. A luminaire that
weighs more than 23 kg (50 lb) shall be supported independently
of the outlet box unless the outlet box is listed and
marked for the maximum weight to be supported.
Click to expand...
 
iwire said:
The exception allows two 6-32 screws to hold up to 6 pounds.
Click to expand...
Good one Bob. It's important to note that the exception clearly states that the two 6/32's (or larger) are for wall mounting luminaires and not ceiling mounted.
 
#6/32 screw load

Thanks everyone for your help. I did find the answer in the NEC, after posting this message. I'm currently preparing to take my Oregon LME exam in the next couple of weeks, so I doing some review work.

Thanks again,
Don

Great website and forum
 
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