Cable ambient temperature distance

Status
Not open for further replies.

JJWalecka

Senior Member
Location
New England
When bundling Type MC Cable how far apart do the cables have to be to allow the right ambient temperature. For instance: If I had a Caddy "J" hook with five Mc's installed how far away should the next "J" Hook be.
Thank you for your time and effort


JJ
 
JJWalecka said:
When bundling Type MC Cable how far apart do the cables have to be to allow the right ambient temperature. For instance: If I had a Caddy "J" hook with five Mc's installed how far away should the next "J" Hook be.
Thank you for your time and effort


JJ
6 feet.........
 
Perhaps I didn't explain it in detail enough. If you had a trunk run of branch circuits supported every six feet how far to the right or left of the trunk run would the next bundle of cables need to be. 6 inches away? 12 inches away?? Thank you for your time
 
JJWalecka said:
Perhaps I didn't explain it in detail enough. If you had a trunk run of branch circuits supported every six feet how far to the right or left of the trunk run would the next bundle of cables need to be. 6 inches away? 12 inches away?? Thank you for your time

As long as it is not bundled with the other cables there is no distance.
 
310.15(B)(2)(a) More Than Three Current-Carrying Conductors in a Raceway or Cable. Where the number of current-carrying conductors in a raceway or cable exceeds three, or where single conductors or multiconductor cables are installed without maintaining spacing for a continuous length longer than 600 mm (24 in.) and are not installed in raceways, the allowable ampacity of each conductor shall be reduced as shown in Table 310.15(B)(2)(a). Each current-carrying conductor of a paralleled set of conductors shall be counted as a current-carrying conductor.
Define spacing. An inch, millimeter or an atom?
 
Status
Not open for further replies.
Top