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CONTENTS
INTRODUCTION
1 Scope ...............................................................................7
2 Glossary .............................................................................8
3 Components ........................................................................12
4 General .............................................................................12
4.1 Units of Measurement ..........................................................12
4.2 Undated References ...........................................................12
PART I – POWER CONVERTERS AND INVERTERS
CONSTRUCTION
5 General ...........................................................................12A
6 Frame and Enclosure ...............................................................12A
7 Enclosures Used For Protected Environments ...........................................16
8 Accessibility of Uninsulated Live Parts, Film-Coated Wire, and Moving Parts ................17
8.1 General ......................................................................17
8.2 User servicing .................................................................19
8.3 Serviceman servicing ..........................................................20
9 Assembly ...........................................................................20
10 Protection Against Corrosion .........................................................21
11 Supply Connections .................................................................21
11.1 Permanently-connected converters or inverters ..................................21
11.2 Cord connection ............................................................24A
11.3 Bushings ...................................................................24B
12 Low-Voltage Output Connections and Wiring ...........................................25
12.1 General .....................................................................25
12.2 Cigarette lighter inputs ........................................................26
13 Secondary Circuits ..................................................................26
14 Live Parts ..........................................................................27
15 Internal Wiring ......................................................................28
15.1 General .....................................................................28
15.2 Tubing ......................................................................28
15.3 Protection of wiring ...........................................................29
15.4 Electrical connections .........................................................29
15.5 Separation of circuits .........................................................30
15.6 Barriers ....................................................................30A
16 Insulating Materials .................................................................31
17 Transformers .......................................................................31
17.1 General .....................................................................31
17.2 Coil insulation ................................................................31
18 Resistors ..........................................................................34
19 Switches and Controllers ............................................................34
20 Overload-Protective Devices .........................................................34
20.1 General .....................................................................34
20.2 Overcurrent-overtemperature protection .........................................35
21 Fuses and Fuseholders ..............................................................35
22 Receptacles ........................................................................36
OCTOBER 15, 2004 UL 458 3
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