Online Video

Back to Video Menu  
Illustrated Changes to the NEC, 2002 Edition - Part 2

Article 517

Health Care Facility

517.13 Grounding of Receptacles and Fixed Electric Equipment in Patient Care Areas

The section was completely revised to read as follows:

(B) Insulated Equipment Grounding Conductor. In areas used for patient care, the grounding terminals of all receptacles and all noncurrent-carrying conductive surfaces of fixed electric equipment operating at over 100V, likely to become energized and subject to personal contact, must be grounded by an insulated copper equipment grounding conductor. The grounding conductor must be sized in accordance with Table 250.122 and it must be installed in a wiring method as identified in (A) above. Figure 517-2

Author’s Comment: AC cable is listed as a suitable ground fault path because it contains an internal bonding strip of aluminum in direct contact with the metal armored [250.118(9)]. The outer metal sheath of interlocked MC cable is not listed as a suitable ground fault path in 250.118(11), therefore it cannot be used to supply branch circuits in patient care areas of health care facilities. Figure 517-3
Intent: This section was completely revised to clarify that only metal raceways or armored cables listed as a ground return path containing an insulated copper equipment grounding conductor can be used for branch-circuit wiring supplying equipment, luminaires, and receptacles in patient care areas of health care facilities.


VIEW VIDEO ( Click on your connection speed to view )
[ Modem/Dial-up ]   [ Cable/DSN ]  
REQUIRES

[ FREE ]
If you have already been approved for reprint permission, you may right mouse click on the link above and choose "Save Target As ..." or "Save Link As ..." to save the file to your local computer.
©2005 Mike Holt Enterprises, Inc.