Photovoltaic module wire tube bending testing machine
The Photovoltaic Module Wire Tube Bending Testing Machine is designed to evaluate the mechanical durability and fatigue resistance of PV module output cables and protective conduits under repeated bending stress. The system simulates long-term cable flexing conditions to verify compliance with IEC safety requirements, ensuring reliable electrical connections throughout the service life of photovoltaic modules.
Application
(1) Bending fatigue testing of photovoltaic module output cables
(2) Mechanical durability verification of wire tubes and protective conduits
(3) Safety qualification testing for PV junction box cable assemblies
(4) Accelerated lifetime testing for PV cable management systems
(5) Quality control and compliance verification in PV module production
Standards
(1) IEC 61730-2:2004 – Photovoltaic (PV) Module Safety Qualification – Requirements for Testing
(2) CE Certification (Conformité Européenne)
Features
(1) IEC-Compliant Bending Simulation: Accurately reproduces long-term cable flexing conditions defined in IEC 61730-2.
(2) Precision Motion Control: High-resolution frequency and angle control ensures consistent and repeatable bending cycles.
(3) Automatic Failure Detection: Test stops immediately when abnormal torque, cracking, or mechanical failure is detected.
(4) User-Oriented Operation: 7” HD touchscreen with intuitive parameter setting and real-time force–displacement visualization.
(5) Self-Calibrating System: Automatic zeroing and linearity verification before each test cycle.
(6) Robust Mechanical Structure: Stainless steel frame with epoxy coating for long-term stability and corrosion resistance.
(7) Data Traceability: Complete recording of cycle count, bending force, and failure point for quality audits.
Parameters
| Parameter | Specification |
|---|---|
| Frequency Range | 0–120 Hz (adjustable) |
| Spindle Speed | N RPM = Frequency (Hz) / 60 |
| Timing Range | 1–9,999 seconds (1–166.65 minutes) |
| Force Resolution | 0.1 N (maximum capacity 10 kgf) |
| Bending Angle Accuracy | ±1° (rotary encoder feedback) |
| Power Supply | 220V AC, 50/60Hz, single-phase |
| Dimensions | 500 mm (W) × 400 mm (D) × 600 mm (H) |
| Weight | 45 kg (net) / 60 kg (gross) |
Accessories
(1) Testing Kit: 10× conduit clamps (2–20 mm diameter range)
(2) Calibration Tools: 5× calibration weights (1 N–10 N)
(3) Software Suite: BendTest Pro license (Windows/macOS), 1-year cloud fatigue analysis access
(4) Calibration & Safety: NIST-traceable torque wrench, insulated gloves (Class 0, 3 pairs)
(5) Maintenance Kit: Spare drive belts, bearings, and non-corrosive cleaning solution
(6) Documentation: Multilingual quick-start guide (printed and digital), compliance certificates
Test Procedures
(1) Secure the PV cable or wire tube specimen using the appropriate conduit clamps.
(2) Set bending frequency, timing, and angle parameters via the touchscreen HMI.
(3) Start the test cycle and monitor real-time force and bending angle feedback.
(4) Allow the system to run until the preset cycle count is reached or automatic failure detection is triggered.
(5) Record and export test data, including total cycles, peak force, and failure point.
Maintenance Information
(1) Inspect clamps, drive belts, and bearings regularly for mechanical wear.
(2) Clean the frame and moving components to prevent dust accumulation.
(3) Verify force sensor and angle encoder calibration periodically.
(4) Check emergency stop and overload protection functions before routine operation.
(5) Store the machine in a dry environment to maintain long-term measurement stability.
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