North Guangjing Precision BH-20KV High-Voltage Arc Resistance Tester
| Brand | North Guangjing Precision Instrument |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | BH-20KV |
| Pricing | Upon Request |
Overview
The North Guangjing Precision BH-20KV High-Voltage Arc Resistance Tester is an engineered solution for quantifying the arc resistance performance of solid insulating materials under controlled high-voltage stress. Based on the principle of sustained surface arcing between two fixed electrodes under alternating voltage, the instrument evaluates critical failure metrics—including tracking index (CTI), erosion depth, carbonization extent, and time-to-failure—under standardized electrical stress conditions. Designed in strict compliance with GB/T 1411–2002 (equivalent to IEC 61621 and ASTM D495), the system applies a precisely regulated AC voltage (0–20 kV) across a pair of tungsten-carbide or platinum-tipped electrodes pressed against the specimen surface. The resulting arc discharge induces localized thermal degradation; real-time current monitoring (down to milliampere resolution) and synchronized voltage logging enable objective determination of material resistance to conductive path formation and surface tracking.
Key Features
- Microprocessor-controlled high-voltage generation using Siemens-based embedded CPU architecture ensures stable, jitter-free voltage ramping at user-defined rates (0–50 kV/s, adjustable in 0.1 kV/s increments)
- Dual-layer safety architecture: hardware-level overvoltage cutoff (<10 ms response), software-enforced interlock logic, and mechanical safety door interlock meeting IEC 61010-1 requirements
- Real-time data acquisition via USB 2.0 interface (up to 3 MB/s throughput), eliminating latency inherent in legacy RS-232 systems and enabling true synchronous voltage–current waveform capture
- Multi-electrode configuration support: standardized tungsten carbide (Ø2.4 mm × 70 mm), stainless steel plate (25.4 mm × 12.7 mm × 0.15 mm), and platinum-tipped options for material-specific testing protocols
- Comprehensive fault diagnostics: dual-stage alarm system (local HMI + PC GUI), automatic zero-voltage reset post-trip, and active discharge circuitry compliant with EN 61010-1 Clause 6.4.2
- High-precision measurement: voltage control accuracy ≤ ±1% of set value; arc timing resolution <5 ms; leakage current sampling at ≥1 kHz rate with 1 mA sensitivity
Sample Compatibility & Compliance
The BH-20KV accommodates rigid and semi-rigid dielectric specimens up to 15 mm thickness, including thermoset/thermoplastic polymers, laminated composites, ceramic substrates, glass insulators, impregnated paperboard, and cured varnishes. Electrode pressure is mechanically calibrated to 0.5 ± 0.05 N per electrode (per GB/T 1411–2002 Annex A). All test sequences adhere to mandatory clauses of GB/T 1411–2002, and the system supports optional traceability to ISO/IEC 17025-accredited calibration—certificates issued by CNAS-recognized national metrology institutes (e.g., Beijing Institute of Metrology) or customer-designated laboratories. The stainless-steel (SUS304) enclosure meets IP2X ingress protection and flame-retardant housing requirements per UL 746C.
Software & Data Management
The proprietary Windows-based control software provides full GLP-compliant operation: role-based user authentication (multi-user profiles with encrypted password protection), electronic audit trail (21 CFR Part 11-ready metadata logging), and secure data storage with SHA-256 hashing. Test parameters—including voltage ramp profile, arc current threshold, dwell time, and electrode spacing—are programmable and saved with timestamped version control. Raw voltage/current waveforms are stored in IEEE C37.118-compliant binary format (.bin) with ASCII export capability. Comparative analysis supports overlay of ≥5 test curves with color-coded differentiation; statistical reporting includes mean time-to-tracking, standard deviation of erosion depth, and pass/fail classification per IEC 60112 criteria. Data export supports CSV, PDF, and XML formats for LIMS integration.
Applications
This tester serves quality assurance and R&D laboratories in polymer compounding, electrical insulation manufacturing, aerospace component certification, and automotive high-voltage system validation. Typical use cases include qualification of epoxy molding compounds for EV battery enclosures, comparative screening of halogen-free flame-retardant polyamides, verification of silicone rubber bushings for medium-voltage switchgear, and development of arc-resistant PCB laminates for power electronics. It is routinely employed to support UL 746A, IEC 60695-2-10, and GB/T 5169.11 conformance documentation.
FAQ
What standards does the BH-20KV comply with?
It fully implements GB/T 1411–2002, which aligns with IEC 61621 and ASTM D495 for arc resistance evaluation of solid insulating materials.
Can test parameters be customized beyond standard modes?
Yes—voltage ramp rate, arc current thresholds (10–40 mA selectable), on/off timing intervals, and electrode geometry are fully programmable via the software interface.
Is remote operation supported?
The system supports wired (USB/RS-232) and wireless (Bluetooth 5.0) control; “human-machine separation” mode enables safe operation from ≥3 meters distance with real-time telemetry.
How is calibration traceability ensured?
Each unit ships with a factory calibration report referencing national primary standards; optional third-party calibration certificates (CNAS or customer-specified lab) are available upon request.
What safety certifications apply to the mechanical enclosure?
The SUS304 chassis conforms to IEC 61010-1 for electrical safety and meets UL 746C flammability Class V-0 for polymer components used in the housing assembly.
