Archive for September, 2009
IEC 61730 Dielectric Withstand Test on PV Modules
UL 1703, IEC 61646, IEC 61215 and IEC 61730 prescribe safety and durability testing. The Hipot Test is one of the safety tests required. Dielectric Withstand Test, High Potential Test and Hipot Test all refer to a test with the main purpose of testing the electrical insulating capability of the device under test, in this [...]
Is your Wet Leakage Current Test working right?
In order to very quickly find out if your Hipot Test Equipment is working right, simply use a reference resistor that qualifies with the required rated power. HARREXCO offers such resistors in different resistor sizes and also customizes these to customer requirements. Contact our engineering team if you are not sure or if you are [...]
Consistency of Hipot Tests on Photovoltaic Modules
The field experience of HARREXCO AG is over 500MW/a and increasing. One of the most common questions which the company is confronted with, concerns the consistency of hipot values either expressed in electrical resistance or leakage current vs time or age. For instance, when a TF module laminated with PVB is in production and screened for hipot failure, the [...]