要求:
7 Marking
8 Protection against accidental contact with live parts
9 Terminals
10 Provisions for protective earthing
11 Moisture resistance and insulation
12 Electric strength
13 Thermal endurance test for windings of ballasts
14 Fault conditions
15 Transformer heating
16 Abnormal conditions
17 Construction
18 Creepage distances and clearances
19 Screws, current-carrying parts and connections
20 Resistance to heat, fire and tracking
21 Resistance to corrosion