UL 1323:4ED 2007-04-05
Current
The latest, up-to-date edition.
Scaffold Hoists
Hardcopy
05-04-2007
FOREWORD
INTRODUCTION
1 Scope
2 General
3 Glossary
4 Installation and operating instructions
CONSTRUCTION
All hoists
5 General
6 Wire ropes
7 Drums and sheaves
8 Speed reducers
9 Shafts, fillets, keys, and splines
10 Manual cranks
11 Protection against corrosion
12 Lubrication
13 Gears
Manually powered hoists
14 General
Electrically powered hoists
15 General
16 Accessibility of uninsulated live parts, film-
coated wire, and moving parts
17 Protection of service personnel
18 Electrical components enclosures
19 Supply connections
20 Internal wiring
21 Grounding
22 Bonding for grounding
23 Mounting of components
24 Capacitors
25 Insulating material
26 Motors
27 Receptacles
28 Switches and controllers
29 Interlock switches
30 Uninsulated live parts
31 Spacings
32 Printed-wiring boards
Pneumatically powered hoists
33 General
34 Components
Power-operated hoists
35 General
36 Primary brakes
37 Secondary brakes
38 Load-limiting devices
39 Guards
PERFORMANCE
All hoists
40 Normal-operation test
41 Endurance test - actuating mechanisms for power-
operated hoists
42 Strength test
43 Operation test - hoist run-off
44 Accelerating-descent speed test
45 Wire-rope test
46 Load-limiting test
47 Accelerated-corrosion test
48 Metallic-coating-thickness test
ELECTRICALLY POWERED HOISTS
49 General
50 Leakage-Current Test
51 Input Test
52 Temperature Test
53 Strain-Relief Test
54 Abnormal-Operation Test
55 Endurance Test
56 Tests on Switches and Controllers
57 Overvoltage and Undervoltage Tests - Electromagnets
58 Accelerated-Aging Test
59 Rain Test
60 Dielectric Voltage-Withstand Test
61 Short-Circuit Test - Bonding Conductors
62 Impedance Test - Bonding Conductors
63 Environmental Test - Bonding Members and Resilient
Rubber Mountings
64 Overcurrent Test
65 Limited Short-Circuit Test
66 Immersion Test - Resilient Rubber Mountings
PNEUMATICALLY POWERED HOISTS
67 Input-Pressure Test
68 Hydrostatic-Pressure Test
MANUFACTURING AND PRODUCTION TESTS - ELECTRICALLY
POWERED HOISTS
69 General
70 Dielectric Voltage-Withstand Test
71 Grounding-Continuity Test
MARKINGS
72 All Hoists
73 Winding-Drum Hoists
74 Power-Operated Hoists
APPENDIX A
Standards for Components
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