ANSI UL 458 - Page 10

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23 Inverter Output Circuits ..............................................................36
24 Lampholders ......................................................................36A
25 Capacitors ........................................................................36A
26 Transient Voltage Surge Suppressors ................................................36A
27 Printed Wiring .....................................................................36A
28 Spacings ..........................................................................37
28.1 General .....................................................................37
28.2 Insulation barriers ............................................................42
29 Grounding .........................................................................43
30 Bonding of Internal Parts ...........................................................44A
30.1 General ....................................................................44A
30.2 Bonding conductor ...........................................................45
PERFORMANCE
31 General ............................................................................45
32 Leakage Current Test ...............................................................45
33 Power Input Test ...................................................................49
34 Output Voltage Measurement Test ....................................................49
35 Capacitor Voltage Measurement Test .................................................49
36 Output Voltage and Current Test .....................................................50
37 Temperature Test ...................................................................50
37.1 Normal ......................................................................50
37.2 Maximum output without fan operation ..........................................55
37.3 Zero clearance ...............................................................55
37.4 Maximum overload without trip .................................................56
38 External Surface Temperature Limits Test .............................................56
39 Dielectric Voltage-Withstand Test .....................................................57
40 Induced Potential Test ...............................................................58
41 Testing on Transformer Insulating Materials ............................................58
42 Strain Relief Test ...................................................................58
43 Overload Test .....................................................................58A
44 Overcurrent Protection Calibration Test ................................................59
45 Ground-Fault Circuit-Interrupter Evaluation Test For Power Inverters ......................59
46 Battery Charger Overcharge Test .....................................................60
47 Abnormal Operation Test ............................................................60
47.1 General .....................................................................60
47.2 Output short-circuit ..........................................................60B
47.3 Switch position ...............................................................61
47.4 Component malfunction .......................................................61
47.5 Rectifier and capacitor short-circuit test .........................................61
47.6 Vibration test ................................................................61
47.7 Surge protectors .............................................................63
47.8 Specific value overload .......................................................63
47.9 Blanketing test ...............................................................64
47.10 Flanged bobbin transformer abnormal test .....................................64
47.11 Blocked fan ................................................................66
48 Evaluation of Reduced Spacings on Printed Wiring Boards ..............................66
48.1 General .....................................................................66
48.2 Dielectric voltage-withstand test ................................................66
48.3 Shorted trace test ............................................................67
49 Burnout Test .......................................................................67
49.1 General .....................................................................67
OCTOBER 15, 2004UL 4584