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#51627 - 05/04/05 06:12 PM MC AND WHIPS
kdrifter440 Offline
Member

Registered: 11/24/03
Posts: 23
Loc: Poughkeepsie
I HAVE TWO QUESTIONS.

1. IF WE ARE USING 5 FT WHIPS IN THE CEILING FROM BOX TO 2X4 LIGHT HOW OFTEN DO YOU HAVE TO STRAP OR SUPPORT IT?

2. HOW OFTEN DO YOU HAVE TO SUCURE MC IN WALLS? ITS IT 1 FOOT FROM BOX AND THEN EVERY 4 FEET?

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#51628 - 05/04/05 07:25 PM Re: MC AND WHIPS
Gregtaylor Offline
Member

Registered: 03/02/05
Posts: 212
Loc: Boise, Idaho, USA
330.30 says type MC "shall be supported and secured at intervals not exceeding 6 ft."
330.30(B) says type MC "shall be permitted to be unsupported where the cable:
(1) ...
(2) Is not more than 6 ft. from the last point of support for connections within an accesible ceiling to luminaires or equipment.
330.30(C) says"....shall be secured within 12 inches of every box, cabinet, fitting or other cable termination.

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#51629 - 05/05/05 07:14 PM Re: MC AND WHIPS
Ryan_J Offline
Moderator

Registered: 08/19/03
Posts: 1355
Loc: West Jordan, Utah, USA
Ditto Greg's reply, add that after the 12" securing form the box, it must be secured every 6'.
_________________________
Ryan Jackson,
Salt Lake City

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#51630 - 05/06/05 06:46 AM Re: MC AND WHIPS
kdrifter440 Offline
Member

Registered: 11/24/03
Posts: 23
Loc: Poughkeepsie
DOES THE MEAN A LIGHTING WHIP FIVE FEET LONG DOES NOT NEED TO BE STRAPED WITHIN ON FOOT OF BOX AND LIGHT?

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#51631 - 05/06/05 10:51 AM Re: MC AND WHIPS
DougW Offline
Member

Registered: 06/08/03
Posts: 1083
Loc: North Chicago, IL
330.30(B) says type MC "shall be permitted to be unsupported where the cable:
(1) ...
(2) Is not more than 6 ft. from the last point of support for connections within an accesible ceiling to luminaires or equipment.

Five feet is less than six, last time I looked

Going to a luminaire or other single / dedicated piece of equipment, less than 6 is OK w/o support.

Using it to extend an existing wiring system? support within 12", then every 6' thereafter.

Your AHJ may have (sounds like does have) a different intepretation, but that's the one most of us are familiar with.

BTW, ALL CAPS is SHOUTING...



[This message has been edited by DougW (edited 05-06-2005).]

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