Internal Wiring Flexing Tester – IEC 60335-1 Flexing Test Equipment for Power Cord Durability

IEC 60335-1 Electrical Appliance Internal Wiring Flexing Testing Equipment

The Internal Wiring Flexing Tester is a specialized test apparatus designed to evaluate the mechanical durability and flexing resistance of internal wiring and power cords in household appliances. Manufactured in accordance with IEC 60335-1 clause 23.3, the equipment performs repeated bending cycles under controlled load to verify that the wiring maintains electrical integrity and mechanical strength throughout its service life.

Testing Principle

The tester clamps the power cord or internal wiring in a fixture and uses a servo-driven mechanism to perform continuous flexing motion at a preset angle and speed. A built-in 3 kW voltage regulator applies adjustable load (0–250 V) while the system counts cycles and monitors for disconnection or failure. The PLC controller automatically stops the test when the preset number of cycles is reached or when a fault is detected, providing accurate and repeatable evaluation of flexing endurance.

KingPo Factory Advantages

KingPo is an ISO 9001, ISO 14001, ISO 45001 and CE certified manufacturer, also holding SGS, PSE and RoHS certifications. We specialize in electrical safety and endurance testing equipment and have supplied Internal Wiring Flexing Testers to appliance manufacturers and certification laboratories worldwide. Each unit undergoes rigorous calibration and is delivered with complete documentation, on-site installation guidance, a full one-year warranty and lifetime technical support from our Dongguan facility.

Professional Construction & Technical Precision

Key features include:

• Servo motor drive system for high-precision angle and speed control during flexing cycles
• Programmable flexing angle from 0° to 180° with accurate positioning
• Adjustable flexing speed from 5 to 60 rpm for different test requirements
• Built-in 3 kW voltage regulator providing 0–250 V adjustable load with digital current and voltage display
• PLC color touchscreen interface for intuitive parameter setting, real-time monitoring and automatic test execution
• Robust mechanical fixture designed for secure cable clamping and long-term reliable operation

These elements ensure stable, repeatable and accurate flexing endurance testing while fully meeting IEC 60335-1 requirements.

Technical Parameters

The Internal Wiring Flexing Tester is used to verify the mechanical durability of internal wiring and power cords during product development, type approval and production quality control. It helps manufacturers ensure wiring maintains electrical integrity under repeated flexing, supporting compliance with safety standards for household appliances and reducing the risk of field failures.

Procurement Benefits

The tester offers precise servo-driven motion, programmable angle and speed, built-in load regulation and a user-friendly touchscreen interface in a robust design. It delivers consistent, repeatable test results with minimal maintenance, making it a practical solution for internal wiring flexing endurance testing.

Internal Wiring Flexing Tester Applications

• Household appliances – flexing resistance testing of internal wiring and power cords
• Small electrical devices – durability evaluation of flexible cables and connections
• Certification laboratories – compliance testing according to IEC 60335-1 clause 23.3
• Appliance manufacturers – production quality control and type approval
• R&D departments – optimization of wiring design and material selection