#SPLICE 2 FREE MONTHS FOR FREE#
#SPLICE 2 FREE MONTHS CODE#

#SPLICE 2 FREE MONTHS FOR FREE#

A looped, unbroken conductor not less than twice the minimum length required for free conductors in 300.14 must be counted twice.

#SPLICE 2 FREE MONTHS CODE#

The 2005 edition of the National Electrical Code added a new provision pertaining to conductor fill in 314.16(B)(1). (See Figure 1.) The maximum number of conductors in Table 314.16(A) cannot be installed if the box contains any of the following items: internal cable clamp, luminaire (fixture) stud, hickey, device or equipment. In accordance with Table 314.16(A), the minimum depth required for a four-inch square box enclosing nine conductors is 1 1/2 inches. Therefore the total number of 12 AWG conductors is nine. Since three of the 12 AWG conductors are to be spliced to three other 12 AWG conductors, they are counted as six. What is the minimum depth four-inch square box required? (The box contains no fittings or devices.) Three 12 AWG conductors running through the box without a splice (unbroken) count simply as three conductors. The other two conduits contain three 12 AWG conductors, each of which will be spliced together. The unbroken conductors are not more than two times the minimum length required for free conductors as specified in 300.14. Three 12 AWG unbroken conductors enter the box from one conduit, and with sufficient slack, exit the box through another conduit. For example, a metal junction box is needed for four electrical metallic tubing raceways. (Equipment grounding conductors will be discussed at a later time.) If the box is a metal box listed in Table 314.16(A) and all the conductors are the same size, the maximum number of conductors provided in the appropriate column can be installed. When all conductors within the box are the same size, simply count the number of conductors. This month, the discussion continues with box fill calculations in 314.16(B)(1). While box volume calculations are in 314.16(A), box fill calculations are in 314.16(B).

Provisions for calculating the minimum size outlet, device or junction box (or conduit body) or the maximum number and sizes of conductors permitted in a box (or conduit body) are in 314.16. Article 314 also covers manholes and other electric enclosures intended for personnel entry. ARTICLE 314 C OUTLET, DEVICE, PULL AND JUNCTION BOXES CONDUIT BODIES FITTINGS AND MANHOLESĪrticle 314 of the National Electrical Code contains requirements pertaining to the installation and use of all boxes and conduit bodies used as outlet, device, junction or pull boxes.

Splice 2 free months