UL 1022:5ED 2012-04

Foreword
Introduction
1 Scope
2 General
3 Glossary
4 Instructions and drawings
Construction
5 Enclosure
6 Electric shock
7 Corrosion protection
8 Field wiring system connections
9 Internal wiring
10 Bonding for grounding
11 Components
12 Spacings
13 Servicing and maintenance
Performance
14 General
15 Normal operation test
16 Sampling circuit supervision test
17 Power input test
18 Leakage current measurements test
19 Overvoltage and undervoltage test
20 Jarring test
21 Temperature test
22 Overload test
23 Endurance test
24 Variable ambient temperature test
25 Humidity test
26 Electric shock current test
27 Transient tests
28 Dielectric voltage-withstand test
29 Component failure test
30 Abnormal operation test
31 Test switch operation test
Manufacturing and production tests
32 General
33 Production line leakage current measurements test
34 Production line dielectric voltage-withstand tests
Marking
35 General
36 Supplementary
Appendix
A Standards for components

This revision of ANSI/UL 1022 dated July 1, 2020 is being issued to update the title page to reflect the most recent designation as a Reaffirmed American National Standard (ANS). No technical changes have been made.

Describes 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.