IEC Standard

Thermal Cycling

Test

Low Temperature

Test

Damp Heat

Test

Temperature/Humidity

Cycling Test

Temperature

Test

  • IEC61215

  • IEC61646

  • IEC60068-2-38

  • IEC60068-2-78

  • IEC61215

  • IEC61646

  • UL1703

  • IEC60068-2-2

ASTM Standard

  • ASTM E1171

Detail Description of the standard

IEC 61215  Crystalline Silicon Terrestrial Photovoltaic (PV)  & IEC 61646 Thin-Film Terrestrial Photovoltaic (PV) Modules

Section

Title

Description

10.11

Thermal Cycling

Ramp down from 25C to -40C at 100C/h (max)., soak for 10minutes  Ramp up to 85C at 100C/hr or less.  Soak a minimum of 10minutes.  Then return to 25C, 6hour maximum cycle time.  Repeat for specified number of cycles per figure 1 of IEC61215 test specification (50 and/or 200 cycles).  Current test profile chart is based upon module temperature

10.12

Humidity Freeze

Ramp from room temperature with 85%RH to 85C/85% at 100C/h max.  Soak for 20 hours minimum. Ramp down to ambient with 85%RH at 100C/h max.  Ramp down to 0C at 100C/h max then to -40C at 200C/h max.  Soak for 30minutes minimum.  Ramp from -40C to 0C at 200C/h max and from 0C to 25C at 100C/h max. 

For IEC61215,  Humidity must be maintained at 85%+/-5% whenever temperature is 25C or higher.

For IEC61646, no humidity control during temperature transition.

No of cycles: 10 cycles

10.13

Damp Heat

85C, +/-2C, 85%, +/-5%RH

No. of Cycles / Time: 1,000hours

 

ASTM E1171  Test Methods for photovoltaic Modules in Cyclic Temperature and Humidity Environment

Section

Title

Description

6.5

Thermal Cycling

Ramp down from 25C t0 -40C at a change rate of between 100C/h max and 52C/h soak for a minimum of 30minutes.  Ramp from -40C to 85C at a change rate of between 100C/h max and 52C/h minimum.  The cycle time is not to exceed 6 hours.  Repeat for 50 cycles.  Perform visual and electrical retests.  Re-run 150 cycles
6.6

Humidity Freeze

Ramp from room temperature with 85%RH to 85C/85% at 100C/h max.  Soak for 20 hours minimum. Ramp down to 0C at 100C/h max then to -40C at 200C/h max.  Soak for 30minutes minimum.  Ramp from -40C to 0C at 200C/h max and from 0C to 25C at 100C/h max. 

No of cycles: 10 cycles

6.7

Damp Heat

85C, +/-2C, 85%, +/-5%RH

No. of Cycles / Time: 1,000hours

 

 

   

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