Peiyi PY-ZRS02 Glow-Wire Test Apparatus

Overview

The Peiyi PY-ZRS02 Glow-Wire Test Apparatus is an engineered solution for evaluating the ignition resistance and flame propagation behavior of non-metallic materials used in electrical and electronic equipment under simulated thermal stress conditions. It operates on the principle of glow-wire testing—a standardized method defined in IEC 60695-2-10 and corresponding national standards—to assess whether a material will ignite or sustain combustion when exposed to a heated metallic element representing a fault-induced overheating condition. Unlike open-flame ignition sources, the glow-wire simulates a high-resistance heating element that reaches controlled temperatures between 500°C and 1000°C, enabling reproducible evaluation of thermal degradation thresholds, flaming droplet formation, and self-extinguishing capability. The apparatus is designed for use in quality control laboratories, R&D facilities, and third-party certification labs conducting flame-retardancy verification for components such as switch housings, relay bases, terminal blocks, insulating bushings, and PCB substrates.

Key Features

• Automated specimen carriage system with precise positioning: motor-driven horizontal translation ensures repeatable contact between the glow-wire tip and test specimen at defined force (0.8–1.2 N) and penetration depth (7 mm max).
• Digital temperature control loop with K-type thermocouple feedback (Ø0.5 mm armored probe), calibrated to meet IEC 60695-2-10 accuracy requirements across the full operational range (500–1000°C).
• Integrated timing module with independent measurement channels for glow-time (Ta), ignition time (Ti), and flame-extinguishing time (Te); resolution ±1 second over 0–99 min 99 s range.
• Test chamber constructed with ≥0.5 m³ internal volume and black matte interior finish to enhance contrast during visual observation of ignition events.
• Front-mounted tempered glass viewing window with integrated low-intensity illumination (<20 lux) to minimize ambient interference while ensuring operator safety and compliance with photometric observation standards.
• Forced-air exhaust system with adjustable flow rate to maintain consistent atmospheric composition and remove combustion by-products without disrupting thermal equilibrium at the test interface.
• Real-time digital display of both setpoint and actual glow-wire temperature, along with elapsed test duration—enabling immediate traceability during routine testing or audit preparation.

Sample Compatibility & Compliance

The PY-ZRS02 accommodates flat, rigid specimens up to 10 mm thick and 60 mm × 60 mm in planar dimension, conforming to dimensional requirements specified in IEC 60695-2-10 and GB/T 5169.10. It supports evaluation of thermoplastics, thermosets, laminates, elastomers, and composite insulation materials commonly employed in household appliances, industrial controls, and IT equipment. All mechanical and thermal parameters—including wire geometry (4.0 ± 0.04 mm diameter, 80/20 Ni/Cr alloy), approach velocity (10–25 mm/s), and dwell time—are aligned with normative tolerances defined in ISO/IEC 17025-accredited test protocols. The apparatus meets structural and functional requirements for inclusion in GLP-compliant testing workflows and supports documentation traceability necessary for regulatory submissions under UL, CCC, CE (EN 60335-1), and RoHS frameworks.

Software & Data Management

While the PY-ZRS02 operates via embedded microcontroller-based logic without proprietary PC software, its hardware architecture incorporates dual-channel analog-to-digital conversion for synchronized logging of temperature and time events. All measured values—Ta, Ti, Te—are retained in non-volatile memory for manual export via RS-232 interface (optional). The system supports integration into laboratory information management systems (LIMS) through ASCII-formatted serial output compliant with ASTM E1382-95 guidelines for instrument data exchange. For audit readiness, timestamped event logs can be manually recorded alongside operator ID, sample ID, test standard reference, and environmental conditions (ambient temperature/humidity)—satisfying minimum documentation expectations under FDA 21 CFR Part 11 Annex 11 and ISO/IEC 17025 clause 7.7.

Applications

• Evaluation of comparative tracking index (CTI)-relevant materials prior to UL 746A flammability classification.
• Verification of material compliance for end-product certification under IEC 60335-1, IEC 60950-1, and IEC 62368-1.
• Screening of candidate polymers during early-stage component design to identify optimal flame-retardant formulations.
• Root-cause analysis of field failures linked to thermal runaway or adjacent-part ignition in power distribution units.
• Supporting technical dossiers for CE marking, CCC certification, and global market access where glow-wire resistance is a mandatory requirement.

FAQ

What standards does the PY-ZRS02 fully support?
It is configured and validated for GB/T 5169.10–5169.13, IEC 60695-2-10:2013, UL 746A, DIN 695, and VDE 0471. Calibration certificates are provided per ISO/IEC 17025 requirements upon request.
Is the glow-wire replaceable, and how often should it be changed?
Yes—the glow-wire is a consumable part. Replacement is recommended after 100 test cycles or upon visible deformation, oxidation, or deviation from nominal diameter (>4.04 mm or <3.96 mm).
Can the device be used for pre-qualification testing before formal certification?
Absolutely. Its metrological performance aligns with accredited lab-grade instrumentation, making it suitable for internal screening, supplier qualification, and failure mode simulation prior to submission to notified bodies.
Does the unit include calibration documentation?
Standard delivery includes factory calibration report traceable to NIM (National Institute of Metrology, China). Optional UKAS-traceable calibration service is available upon order.
What maintenance is required for long-term reliability?
Monthly inspection of thermocouple integrity, carriage rail lubrication, exhaust duct clearance, and verification of timer synchronization against a certified stopwatch is advised per preventive maintenance schedule.