The test items and procedures of electric energy storage equipment and systems (ESS) for electric power system (EPS) applications, including type test, production test, installation evaluation, commissioning test at site, and periodic tests are as follows:---- Type tests covering all necessary test items of ESS applied in EPSs---- Production tests, including quality inspection and test of ESS before shipment---- Installation evaluation shall be carried out after field installation of ESS---- Commissioning tests shall be carried out on site when the field installation of ESS are complete and before they are officially put into operation---- Periodic tests sha...