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UL 1022

5th Edition, August 3, 2016

Complete Document

UL Standard for Safety Line Isolation Monitors

Includes all amendments and changes through Revision Page(s) , August 3, 2016

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Product Details:

  • Revision: 5th Edition, August 3, 2016
  • Published Date: August 3, 2016
  • Status: Active, Most Current
  • Document Language: English
  • Published By: UL (UL)
  • Page Count: 53
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

These requirements cover dynamic line isolation monitors and related supplementary indicating units for supervising isolated power-supply circuits in patient care areas of health care facilities, including inhalation-anesthetizing locations in accordance with the National Electrical Code, NFPA 70. 

The detectors and supplementary indicating units are intended to be:

a) Included as part of an isolated power-supply center for patient care locations of health care facilities; and

b) Installed in an Other-Than-Hazardous (Classified) Location of a health care facility as defined by the National Electrical Code, NFPA 70.

These requirements do not cover ground fault circuit interrupters for use on grounded alternating current systems in accordance with the National Electrical Code, NFPA 70.