Low-Voltage Equipment Requirements in Health Care Facilities

In anesthetizing locations of health care facilities, low-voltage equipment in frequent contact with persons shall _____.

a) operate on an electrical potential of 10V or less
b) be moisture resistant
c) be intrinsically safe or double-insulated
d) any one of the above

See answer and applicable Code reference

The correct answer is: d) any one of the above

Article 517 of the 2011 NEC covers the requirements for Health Care Facilities. The specific rules for low-voltage equipment and instruments in these types of facilities are listed in Sec. 517.64. As noted in 517.64(A), "Low-voltage equipment that is frequently in contact with the bodies of persons or has exposed current-carrying elements shall comply with one of the following: (1) Operate on an electrical potential of 10V or less; (2) Be approved as intrinsically safe or double-insulated equipment; (3) Be moisture resistant."