C-H,
Hang on a minute, mate,
For any sort of Voltage Drop measurement,
there needs to be a standard point from which these measurements are taken, does
EN 50160 give a standard point, at which these measurements should be taken.
I have done thousands of these measurements,
especially where motors are concerned, as with the inverse-square law applying, you can burn a motor out by low voltage.
Also, I disagree, with the use of the 10 minute period, used for voltage drop.
I have used a Data Logger and associated software for the last 2-3 years, to give a full chart of what has happened in the last 24-36 Hrs. [Linked Image]