It is not required to test all PV input terminals if analysis of the design indicates that one ormore terminals can be expected to have the same result, for example where multiple PV string inputs are in parallel.NOTE The resistance to ground of the DC supply or simulated array used to power the inverter during this test, must be taken into account unless it is large enough not to significantly influence the test result.4.8.2.2 Array insulation resistance detection for inverters for functionally grounded arrays