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Continuity Tester of Equipotential Bonding

Continuity tester of equipotential bonding is used to check that all exposed conductive parts are at the same voltage, or equipotential. An equipotential bonding continuity test measures the resistance or impedance between two metal parts that could be touched at the same time

Test Standard

Testing Method

IEC61730-2

MST 13

Continuity test of equipotential bonding

(P.S The machine match with climate chamber when make TC&HF testing).

1. DC Constant Current Power Supply: Quantity: 8 channels 
Power Supply Brand: Custom-made domestic brand 
Option 1: Rated Power/Voltage/Current: 100V/30A 
2. Current Switching Function: 
① TC200 follows the IEC 61215-2:2021 procedure to automatically switch the current (red line in the following figure): 
New Test Condition: A 5 N weight capable of being attached to the electrical termination leads of the module. 
Revised Test Condition: at temperature from -40°C to +80°C. During cool down, the -40°C dwell phase and temperatures above 80°C the continuous current shall be reduced to no more than 1.0% of the measured STC peak power current to measure continuity. If the temperature rises too fast (greater than 100°C/h) at the lowest temperature, the start of the current flow can be delayed until the temperature has reached -20°C. 
New Voltage Monitoring: In a module with parallel circuits, an open circuit in one branch will cause a discontinuity in the voltage but not cause the current to go to zero. 
② HF10 Dampness-Freeze Test: Apply continuous, not exceeding 0.5% STC peak power current through      the module. 
If 0.5% of the measured STC current is less than 100 mA, then 100 mA may be applied instead. 
New Voltage Monitoring: Throughout the test, record the module temperature and monitor the current and voltage through the module. 
③ LeTID Light-Induced Degradation Test at High Temperature: Itest = Isc - Imp 
④ Option: The following are applicable only to IEC 61215-1-4:2016 CIGS module tests: 
- TC100 Thermal Cycling Test: 
Apply continuous 10% STC peak power current through the module. 
- HF10 Dampness-Freeze Test: 
Apply continuous, not exceeding 0.5% STC peak power current through the module. 
- DH Damp Heat Test: 
Method B: Reverse connection, voltage set to Vmp (±5%) under STC conditions, current limited to 25% of Isc under STC, monitor the direction of module voltage and current. 
3. Others: 
4. Configuration: System configuration includes 1 electrical control cabinet, 1 industrial computer, 8 double-core PV cables with matching standard MC4 connectors, 8 thermocouple wires, and a 5N 
functions: Real-time display of current, voltage, and temperature working curves, monitoring, analysis, and display of multiple current, voltage, and temperature channels, and saving collected data in EXCEL format to the database. 
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