Photovoltaic module moisture leakage current testing water tank

~1、 Overview
The photovoltaic module moisture leakage current testing water tank is a specially designed moisture leakage current testing device for the solar photovoltaic module industry. The experimental purpose is to test the insulation performance of the module under humid working conditions, and to detect whether moisture from rain, fog, dew, or dissolved snow enters the working part of the internal circuit of the module, causing corrosion, leakage, and non safety accidents.

1.2 Execution Standards

1. IEC 61646:2008 Testing Standard for Thin Film Solar Photovoltaic Modules

2. IEC 61215:2016 Design Quality and Type Approval of Ground Photovoltaic (PV) Modules

3. IEC 61730:2016 Safety assessment of photovoltaic (PV) modules

4. UL1703:2015 Safety Certification Standard for Flat Panel Solar Modules

5. GB/T 9535:2006 Design, identification and finalization of ground crystalline silicon photovoltaic modules

6. GB/T18911:2002 Design, Identification and Type Approval of Thin Film Photovoltaic Modules for Ground Use

2、 Composition of Photovoltaic Module Moisture Leakage Current Testing Water Tank Testing Equipment

1. Experimental water tank (insulation test water tank)

2. Adjustable sample rack (optional)

3. Console

4. Stainless steel frame

5. Liquid level control

3、 Basic description of the water tank for testing the moisture leakage current of photovoltaic modules

1. Model: KM-PV-SLD

2. The equipment of the wet leakage current test system complies with the specifications and standards of IEC 61215:2005, IEC 61646:2008, and IEC 61730-2:2004

3. The equipment can freely set the heating range of the test liquid

4. Digital display of real-time temperature value

5. The equipment is equipped with a water level gauge that can directly observe the water level and control the liquid level

6. Test items: leakage current test+grounding resistance test

7. Component size: 2000mm × 1000mm (customizable)

4、 Technical specifications for photovoltaic module moisture leakage current testing water tank

1. Test slot size: 2600 * 1300 * 250mm (W * D * H) (customizable)

2. Dimensions: 2720 * 1420 * 920mm (W * D * H) (customizable)

3. Test temperature requirement: 22 ± 3 ℃ (for this device)

4. Liquid resistivity:<3500 Ω? cm

5. Current source: greater than 500V

6. Power supply: AC380V, 50Hz, 25A

5、 Characteristics of photovoltaic module moisture leakage current testing water tank

1. Test water tank: made of PVC material with a thickness of 15mm and insulation resistance,

2. Adjustable sample rack: made of aluminum alloy and steel (wrapped with insulation strips)

3. Liquid preparation heating box: made of 316 stainless steel

4. Console: Main body steel baked paint, large screen LCD controller

5. Main structure: High quality and high-strength stainless steel profiles

6、 Safety protection measures for insulation water tank with wet leakage current of photovoltaic modules

When the control system detects the action of the following protective devices (single row), it should be able to automatically cut off the entire system and provide an alarm prompt

1. Overtemperature protection device

2. Reverse phase and phase loss protection device

3. Non fuse switch overload protection

4. Motor short circuit and overload protection

5. Heater short circuit

6. Water shortage and overflow protection

7. Line fuses and fully sheathed terminals