North Guang Precision Instrument BLD-6000V Automatic High-Voltage Tracking Resistance Tester
| Brand | North Guang Precision Instrument / All Precision Instrument |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | BLD-6000V Automatic |
| Price | USD 7,800 (FOB Beijing) |
| Electrode Dimensions | 5.0 mm ± 0.1 mm × 2.0 mm ± 0.1 mm (30° beveled edge) |
| Electrode Material | Copper base with ≥12 mm platinum tip (≥99.0% purity) |
| Electrode Spacing | 4.0 mm ± 0.1 mm |
| Electrode Force | 1.0 N ± 0.05 N |
| Specimen Size | ≥15 mm × 15 mm, thickness ≥3 mm |
| Test Voltage Range | 100–600 V AC (48–60 Hz), voltage drop ≤10% at short-circuit current of 1.0 A ± 0.1 A |
| Trip Threshold | Relay activation upon ≥0.5 A short-circuit current sustained for 2 s |
| Droplet Interval | 30 s ± 5 s |
| Needle-to-Specimen Height | 30–40 mm |
| Droplet Volume | 20–30 mm³ per drop |
| Needle OD | 0.9–1.1 mm |
| Chamber Volume | 0.5 m³ (optional: 0.75 m³ or 1.0 m³) |
| External Dimensions | 1170 mm (W) × 630 mm (D) × 1330 mm (H) |
| Power Supply | 220 V AC, 10 A, 50 Hz |
| Compliance | IEC 60112:2003, GB/T 4207, UL 746A, ASTM D3638-92, DIN 53480 |
Overview
The North Guang Precision Instrument BLD-6000V Automatic High-Voltage Tracking Resistance Tester is an engineered solution for evaluating the comparative tracking index (CTI) and proof tracking index (PTI) of solid insulating materials under controlled electrotchemical stress. It operates on the principle of surface tracking resistance assessment—applying alternating high voltage across standardized platinum-tipped electrodes while delivering calibrated droplets of conductive electrolyte (0.1% ammonium chloride solution) onto the specimen surface. This simulates real-world conditions where electrical insulation is exposed to moisture, contamination, and electric field gradients—common failure modes in low-voltage apparatus, consumer electronics enclosures, and industrial control components. Designed for reproducible, standards-compliant testing, the BLD-6000V adheres strictly to the physical geometry, timing, voltage regulation, and failure detection logic defined in IEC 60112:2003 and its harmonized national equivalents (GB/T 4207, UL 746A, ASTM D3638-92). Its architecture integrates precision electromechanical actuation, digital signal integrity safeguards, and fail-safe interlocking to ensure operator safety and measurement fidelity across extended test cycles.
Key Features
- TVS-based transient voltage suppression circuitry protecting control electronics from high-energy arcing events
- Low-pass filtered current acquisition system minimizing noise interference during high-frequency discharge transients
- Dual-redundant hardware interlock architecture: independent monitoring circuits simultaneously supervise overvoltage, overcurrent, and thermal anomalies—any fault triggers immediate high-voltage cutoff
- SPWM (Sinusoidal Pulse Width Modulation) electronic voltage regulation enabling smooth, stepless 100–600 V output with ±0.5% linearity and <0.2% ripple
- 7-inch capacitive touchscreen HMI with password-protected access levels (operator, technician, administrator)
- Real-time display of applied voltage, leakage current, instantaneous resistance, and calculated resistivity
- Configurable automatic measurement mode with user-defined sampling intervals (1–999 s) and pass/fail logic thresholds
- Onboard auto-calibration routine for voltage and current channels traceable to internal reference standards
Sample Compatibility & Compliance
The BLD-6000V accommodates flat, rigid specimens ≥15 mm × 15 mm × 3 mm, including thermoset plastics (e.g., phenolics, epoxies), thermoplastics (e.g., PBT, PA66-GF), laminated composites, and molded insulating housings. Electrode geometry conforms precisely to IEC 60112 requirements: 5 mm × 2 mm platinum-tipped copper electrodes spaced at 4.0 mm, applying 1.0 N force with 30° bevel. The drip system delivers 20–30 mm³ droplets via solenoid-controlled stainless steel needle (OD 0.9–1.1 mm), adjustable to 30–40 mm height above specimen. Chamber volume (standard 0.5 m³) meets ventilation and containment specifications for safe electrolyte vapor management. Full compliance includes IEC 60112:2003 Annex A (CTI/PTI determination), UL 746A Section 28 (electrical tracking), ASTM D3638-92 (tracking index of plastics), and DIN 53480 (tracking resistance of insulating materials). Equipment documentation supports GLP/GMP audit readiness, including calibration certificates, traceability statements, and maintenance logs.
Software & Data Management
The HACEPRO test software—developed in LabVIEW—provides full instrument control, data logging, and report generation. It supports Windows XP through Windows 10 (64-bit), offers configurable test sequences (voltage ramping, dwell time, droplet count), and stores raw voltage/current/time stamps with 10 ms resolution. All test sessions include metadata tagging (operator ID, sample ID, ambient temperature/humidity), automatic CTI/PTI calculation per IEC 60112 Clause 9, and export to CSV, PDF, or XML formats. Audit trail functionality complies with FDA 21 CFR Part 11 requirements: electronic signatures, immutable session records, and tamper-evident file hashing. Optional network interface enables centralized fleet monitoring and remote firmware updates without physical access.
Applications
This tester serves QC laboratories in electrical equipment manufacturing (lighting fixtures, motor controllers, power supplies), material suppliers (engineering plastic compounders, PCB substrate producers), and third-party certification bodies (UL, TÜV, SGS). Typical use cases include qualification of flame-retardant polyamide housings for EV charging stations, validation of CTI ratings for medical device enclosures per IEC 60601-1, comparative evaluation of halogen-free flame-retardant additives in polypropylene compounds, and incoming inspection of terminal blocks and busbar insulators. Its robust construction and repeatable methodology make it suitable for both R&D screening and production-line final acceptance testing.
FAQ
What standards does the BLD-6000V fully support for CTI/PTI testing?
IEC 60112:2003, GB/T 4207–2016, UL 746A (Section 28), ASTM D3638-92, and DIN 53480. Calibration and verification procedures follow ISO/IEC 17025 guidelines.
Can the instrument perform both CTI and PTI determinations automatically?
Yes—the HACEPRO software implements the stepwise voltage escalation protocol per IEC 60112 Clause 9.2 for CTI and the fixed-voltage endurance test per Clause 9.3 for PTI, with automated pass/fail classification.
Is the chamber available in corrosion-resistant construction?
Standard configuration uses powder-coated mild steel. Optional 304 stainless steel chamber (0.5/0.75/1.0 m³) is available for aggressive chemical environments or long-term electrolyte exposure.
How is electrical safety ensured during high-voltage operation?
Dual-channel hardware interlocks monitor primary and secondary circuits independently. Mechanical door interlock disables HV output when chamber access is opened. Ground-fault interrupter (GFI) and reinforced insulation meet IEC 61010-1 CAT II 600 V requirements.
Does the system support integration into a LIMS environment?
Yes—via TCP/IP or RS-232, the BLD-6000V provides structured ASCII data output compatible with major LIMS platforms (e.g., Thermo Fisher SampleManager, LabVantage). Custom API integration is supported upon request.
