-any portion of a health care facility wherein patients are intended to be examined or treated." For equipment intended to be used within these areas—which include patient, examining, and treatment rooms, as well as any similar areas in which the patient is likely to come into contact with electrical devices -chassis leakage currents should not exceed 300 microamperes. (Note that this limit was increased from the pre-1993 limit of 100 microamperes.) However, NFPA does permit exceptions under certain conditions; for example, leakage currents up to 500 microamperes are permitted if the leakage current does not represent a hazard to the patient and if the grounding connection remains intact -In contrast, locations such as business offices, nurses' stations, clinical labs, corridors, waiting rooms, and similar areas are classified as non-patient care areas, and NFPA's electrical safety requirements do not apply. In these areas, ECRI recommends that leakage currents not exceed 500 microamperes
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