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Illustrated Changes to the NEC, 2005 Edition - Part 1

Article 314

Outlet, Device, Pull and Junction Boxes, Conduit Bodies, and Handhole Enclosures

314.30 Handhole Enclosures

New section contains the requirements for handhole enclosures.

Handhole enclosures must be designed and installed to withstand all loads likely to be imposed.

FPN: See ANSI/SCTE 77, Specification for Underground Enclosure Integrity, for additional information on deliberate and nondeliberate traffic loading that can be expected to bear on underground enclosures.

(A) Size. Handhole enclosures must be sized in accordance with 314.28(A). For handhole enclosures without bottoms, the measurement to the removable cover is taken from the end of the conduit or cable assembly.

(B) Mechanical Connection. Underground raceways and cable entering a handhole enclosure aren’t required to be mechanically connected to the handhole enclosure
. Figure 314-8

(C) Handhole Enclosures Without Bottoms. All splices or terminations must be listed as suitable for wet locations.

(D) Covers. Handhole enclosure covers must have an identifying mark or logo that prominently identifies the function of the enclosure, such as “electric.”

Handhole enclosure covers must require the use of tools to open, or they must weigh over 100 lb. Metal covers and other exposed conductive surfaces must be bonded
to an effective ground- fault current path in accordance 250.96(A) [250.4(A)(3)].


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