UL 1484:5ED 2016-04-20

FOREWORD
INTRODUCTION
1 Scope
2 General
3 Glossary
4 Detector reliability prediction
5 Installation and operating instructions
CONSTRUCTION
Assembly
6 Product assembly
7 Detection-threshold adjustment
8 Supplementary signaling feature
9 Sharp edges
10 Enclosures
11 Protection against corrosion
Field-wiring connections
12 General
13 Cord-connected products
14 Permanently connected products
15 Supplementary signaling circuits
16 Grounding
Internal wiring
17 General
18 Wiring methods
19 Separation of circuits
20 Bonding for grounding
Electrical components
21 General
22 Lampholders and lamps
23 Printed wiring-boards
24 Protective devices
25 Switches
26 Transformers
Spacings
27 General
PERFORMANCE
General
28 Samples and data for test
29 Test voltages
Tests
30 Normal operation test
31 Input-measurement test
32 Electrical-supervision test
33 Temperature test
34 Dielectric voltage-withstand test
35 Abnormal-operation test
36 Overload test
37 Endurance test
38 Audibility test
39 Leakage current test
40 Tests of thermoplastic materials
41 Power supply tests
42 Ignition test
43 Detection threshold tests
44 Permanence of marking tests
45 Strain-relief test
MANUFACTURING AND PRODUCTION TESTS
46 General
47 Production-line detection-threshold calibration
     tests
48 Production-line dielectric voltage-withstand test
49 Production-line grounding continuity tests
MARKING
50 General
INSTRUCTIONS
51 General
SUPPLEMENT SA
SA1 Instructions for determining a reliability
     prediction for gas detectors
SA2 Methods for determining failure rate
SA3 Maximum detector failure rates
CRITERIA FOR ACCEPTANCE OF MICROELECTRONIC DEVICES
SA4 General
SA5 Quality-assurance-screening program
SA6 Determination of the failure rate number
     supplemented by burn-in test
APPENDIX
A Standards for components

These requirements cover electrically operated gas detectors intended for installation in residential occupancies and recreational vehicles (RVs).