The Lab IEC 60112 PTI CTI Tester is a precision testing instrument designed for evaluating the comparative tracking index (CTI) and proof tracking index (PTI) of insulating materials. Manufactured in strict compliance with international standards including IEC 60112, GB 4207, and JIS C 2134, this equipment ensures reliable performance in quality control and research applications.

Ideal for research, production, and quality inspection departments across multiple industries including lighting equipment, low-voltage electrical appliances, household appliances, machine tool electrical systems, motors, power tools, electronic instruments, electrical instruments, information technology equipment, insulating materials, engineering plastics, electrical connectors, and accessories.

This instrument evaluates the tolerance of solid insulating materials under combined electric field and contaminated medium conditions to determine:

• Comparative Tracking Index (CTI): The highest voltage value (up to 600V) that insulating material surfaces can withstand 50 drops of electrolyte without forming leakage traces
• Proof Tracking Index (PTI): The voltage required for material surfaces to form permanent conductive carbon paths after withstanding 50 electrolyte drops at 30-second intervals

• Corrosion-resistant painted combustion box with stainless steel sample racks
• Comprehensive instrumentation including voltmeter, ammeter, time-delay overcurrent relay, and circuit control systems
• Precision automatic dripping system with adjustable height (30-40mm) and position control
• High-purity platinum electrodes (99.9%) with adjustable pressure (1.00N±0.001N) and distance (4.0mm±0.01mm)
• Automatic test procedure control with independent ventilation system
• Leakage detection system that cuts current when loop current exceeds 0.5A for 2 seconds

• Plates and sheets with diameter ≥30mm or length/width >30mm
• Thickness >3mm (samples can be stacked)
• Flat surface required for accurate testing