NGK High Voltage Laboratory provides world's leading high voltage test facilities suitable for estimating insulator string assembly and other power system equipment. The Laboratory also provides other types of facilities.

AC/DC High Voltage Test Facilities	UHV AC Test Hall	AC 1650kV High Voltage Source DC 500kV High Voltage Source Corona Noise Instrument
Impulse Test Facilities	4200kV Lightning Impulse Generator	2500kV Switching Impulse Voltage Test Facilities
Contanimation Test Facilities	UHV Contamination Test Hall	AC 1000kV Insulator Contamination Test Facilities DC 750kV Insulator Contamination Test Facilities
	AC 500kV Insulator Contamination Test Facilities	High Power Test Facilities
	AC 200kV Insulator Contamination Test Facilities	DC 200kV Insulator Contamination Test Facilities
Mechanical Test Facilities	1000kN-m Bending Load Test Facilities	400kN Fatigue Test Facilities
	Steel Towers

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