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Radio disturbances|Grades (quality)|Ratings|Transient voltages|Testing conditions|Electrically-operated devices|Lifting equipment|Electromagnetic compatibility|Electrical testing|Lifts|Radiofrequencies|Electrostatics|Electromagnetic fields|Technical documents|Passenger conveyors|Electrical safety|Electrical measurement|Test equipment|Electromagnetic radiation|Electric enclosures|Alternating current|Materials handling equipment|Escalators|Performance|Compatibility