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Corrosion tests
Marking
Watertightness tests
Leakage paths
Impact testing
Dielectric-strength tests
Electric connectors
Protected electrical equipment
Test fingers
Electric heaters
Portable
Leakage currents
Aquaria (ornamental)
Test equipment
Electrically-operated devices
Heaters
Flexible conductors
Dimensions
Pressure testing
Damp-air tests
Rated voltage
Electrical testing
Type testing
Thermal testing
Electrical safety
Temperature rise
Clearance distances
Immersion heaters
Circuits
Electric terminals
Tracking index
Testing conditions
Mechanical testing
Heating tests
Water heaters
Electrical household appliances
Fire tests
Earthing