[FONT=Times New Roman][size=3]Hey Guys,
Just had someone e-mail me and ask me to explain this so I figured what better way than on the board to help educate others as well. Fellow electricians please feel FREE to chime in.
The question was…Can you have splices in a panel enclosure…that contains Switches and OCPD devices?
Well…if you take the surface of the NEC ruling which is this:
[FONT=Times-Bold]312.8 Enclosures for Switches or Overcurrent Devices**. **[/FONT]
[FONT=Times New Roman]Enclosures for switches or overcurrent devices shall not be [/FONT]
[FONT=Times New Roman]used as junction boxes, auxiliary gutters, or raceways for[/FONT]
[FONT=Times New Roman]conductors feeding through or tapping off to other switches[/FONT]
[FONT=Times-Roman]or overcurrent devices, unless adequate space for this purpose[/FONT]
[FONT=Times New Roman]is provided. The conductors shall not fill the wiring[/FONT]
[FONT=Times New Roman]space at any cross section to more than 40 percent of the[/FONT]
[FONT=Times New Roman]cross-sectional area of the space, and the conductors,[/FONT]
[FONT=Times New Roman]splices, and taps shall not fill the wiring space at any cross[/FONT]
[FONT=Times-Roman]section to more than 75 percent of the cross-sectional area[/FONT]
[FONT=Times-Roman]of that space.[/FONT]
[FONT=Times New Roman]Now remember service conductors and feeder conductors are permitted in the same enclosure ( see 230.7 )[/FONT]
[FONT=Times New Roman]Ok…Basically splices are allowed as long as they do not fill up the 75% of the wiring space…Now I wont go into the math on that…if you would to view it…check out 312.8 of the NEC Handbook for more details.[/FONT]
[FONT=Times New Roman]Basically…just wanted to explain why splices are allowed in panel enclosures…[/FONT]
[FONT=Times New Roman]This post was for Educational Purposes Only - Paulright Protected[/FONT]
[FONT=Times New Roman](Edited: used the term ART for 230.7 and not Sec. for 230.7…I violated the NEC society handbook…sorry )[/FONT]
[/size][/FONT]