FESTEC TIT High-Voltage Tracking Resistance Tester
| Origin | South Korea |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Imported |
| Model | TIT |
| Price | Upon Request |
Overview
The FESTEC TIT High-Voltage Tracking Resistance Tester is an engineered solution for evaluating the comparative resistance of solid insulating materials to electrical tracking under high-voltage stress in the presence of conductive contaminants and moisture. Designed in accordance with IEC 60112, ASTM D3638, and GB/T 4207 standards, this instrument replicates real-world degradation mechanisms—such as surface ionization, carbonization, and progressive conductive path formation—observed in electrical components operating in humid, polluted environments. It applies a controlled AC or DC voltage (0–6 kV) across two platinum-tipped electrodes mounted on a standardized test specimen, while a calibrated electrolyte solution (e.g., ammonium chloride at specified conductivity) is intermittently dripped onto the surface. The system monitors leakage current, tracks formation time, and records failure events—including sustained arcing, flaming ignition, or permanent conductive bridging—to determine the Comparative Tracking Index (CTI) and Proof Tracking Index (PTI) values critical for material qualification in low-voltage equipment, household appliances, and industrial control systems.
Key Features
- High-voltage output range: 0–6 kV AC/DC, continuously adjustable with digital voltage regulation and ±1.5% power accuracy
- Programmable test duration via precision time relay, configurable in seconds, minutes, or hours (up to 6 h)
- Integrated overcurrent protection: automatic power cutoff when leakage current exceeds 60 mA
- Selectable series resistors (1 kΩ, 10 kΩ, 22 kΩ, 33 kΩ), all 1% tolerance, 200 W rated, enabling precise current limiting per IEC 60112 Annex A
- Microprocessor-controlled syringe pump ensures consistent droplet volume (±0.01 mL), interval (30 ± 5 s), and positioning accuracy
- Digital conductivity meter for real-time verification of contaminant solution resistivity (0.1 Ω·m to 10 kΩ·m), calibrated across 0–100 °C
- High-resolution digital depth gauge (0.01 mm resolution) for post-test measurement of carbonized track depth and erosion extent
- Reinforced insulated test chamber with interlocked access door, rated for continuous operation at 6 kV; includes grounding terminals and shielded HV cabling
- Acoustic alarm triggered upon specimen failure (e.g., sustained arc > 2 s or flame propagation), with timestamp logging
Sample Compatibility & Compliance
The TIT tester accommodates standard rectangular specimens (100 mm × 100 mm × 3–6 mm thick), including thermoplastics (e.g., PBT, PA66), thermosets (e.g., epoxy, phenolic), laminates, and filled composites used in relay bases, switch housings, contactor covers, and socket insulators. All mechanical and electrical configurations comply with IEC 60112:2020 Edition 4.0, ASTM D3638-22, UL 746A, and GB/T 4207–2012. The chamber design supports GLP-compliant operation: traceable calibration records, operator ID logging, and audit-ready event timestamps are maintained in non-volatile memory. Optional firmware upgrade enables 21 CFR Part 11–compliant electronic signatures and data integrity controls for regulated manufacturing environments.
Software & Data Management
While the base TIT model operates via front-panel controls and analog indicators, optional PC connectivity (RS-232 or USB) enables integration with FESTEC’s TrackLog™ software suite. This application captures real-time voltage, current, droplet count, elapsed time, and alarm status; exports CSV-formatted reports aligned with ISO/IEC 17025 documentation requirements; and auto-generates CTI/PTI classification tables per IEC 60664-1 insulation coordination guidelines. All stored data retain full metadata—including ambient temperature/humidity logs, operator ID, calibration due dates, and version-stamped firmware IDs—to support internal audits and regulatory submissions.
Applications
- CTI/PTI certification testing for polymer suppliers supplying automotive ECUs, EV battery enclosures, and smart home controllers
- Qualification of molded interconnect devices (MIDs) and PCB substrate materials under IPC-2221B creepage clearance criteria
- R&D evaluation of flame-retardant additives (e.g., alumina trihydrate, melamine polyphosphate) on tracking resistance performance
- Failure analysis of field-failed insulators exhibiting dendritic carbon tracking or electrode corrosion
- Quality assurance screening in production lines for socket outlets, circuit breaker housings, and DIN rail mounting components
FAQ
What standards does the TIT tester fully support?
IEC 60112:2020, ASTM D3638-22, GB/T 4207–2012, UL 746A, and ISO 4577 for comparative tracking index determination.
Can the instrument perform both CTI and PTI evaluations?
Yes—by configuring voltage steps (CTI: descending voltage until failure; PTI: fixed voltage at minimum pass level) and applying standardized contamination protocols per Clause 9 of IEC 60112.
Is the conductivity meter factory-calibrated and traceable?
Yes—the integrated conductometer is supplied with NIST-traceable calibration certificate (valid for 12 months), covering the full 0.1–10 kΩ·m range at 23 °C ± 1 °C.
How is operator safety ensured during 6 kV operation?
The test chamber features double-insulated walls, automatic HV discharge circuitry (<500 ms decay), mechanical door interlock, and CE/EN 61010-1 Class II compliance with reinforced creepage/clearance distances.
Does the system support automated reporting for ISO 17025 accreditation?
With TrackLog™ software enabled, it generates audit-ready PDF/CSV reports containing raw data, calibration history, environmental logs, and electronic signatures meeting ISO/IEC 17025:2017 Clause 7.8 requirements.
