UL 917:5ED 2006-11-10

Foreword
Introduction
1 Scope
2 Glossary
3 Components
4 Units of measurement
5 References
Construction
6 Frame and enclosure
7 Rainproof enclosures
8 Mounting
9 Assembly
10 Operating mechanism
11 Corrosion protection
12 Insulating material
13 Field connections
14 Supply connections
15 Cord-connected devices
16 Grounding
17 Receptacles
18 Bonding of internal parts
19 Current-carrying parts
20 Internal wiring
21 Coil windings
22 Spacings
23 Field-wiring space
Performance
24 General
25 Leakage current test
26 Temperature test
27 Overload test
28 Endurance test
29 Tungsten-filament-lamp load test
30 Test conditions
31 Rain test
32 Dielectric voltage-withstand test
33 Impact test
34 Metallic coating thickness test
35 Gasket tests
36 Grounding resistance test
37 Strain relief test
38 Snap-on cover tests
39 Knockout secureness test
40 Humidity test
41 Abnormal operation test
Ratings
42 Details
Markings
43 Details
TV rated switches
General
44 Details
Construction
45 Enclosure
Performance
46 General
47 Test circuit
48 Test conditions
49 Overload test
50 Endurance test
51 Temperature test
52 Dielectric voltage-withstand test
53 Continued endurance test
54 Dielectric voltage-withstand test (repeated)
Ratings
55 Details
Markings
56 Details

Specifies clock-operated switches rated 600 V or less, to be used in ordinary locations designed to close and open circuits to a load at predetermined intervals, and intended to be employed in accordance with the National Electrical Code, ANSI/NFPA 70.