Abstract: Monitoring Electrical Systems with Multiple Ground Connection Points A method for monitoring an electrical system having multiple electrical ground connection points. The method comprises receiving reflectometry data that has been generated by performing time domain reflectometry on the electrical system, the time domain reflectometry being performed during a measurement time period. The method further comprises: determining a measured waveform from the reflectometry data, the measured waveform indicative of a measured state of the system during the measurement time period; obtaining a predetermined baseline waveform indicative of a baseline state of the system during a calibration time period; generating a difference waveform based on the measured waveform and the baseline waveform; and analysing the difference waveform to determine if there is a change of state in the electrical system between the calibration period and measurement period.

Abstract: A power supply arrangement is described that comprises a power supply module 10 including a supply connector 14 and an output connector 16, and an electrical circuit 18 interconnecting the supply connector 14 and the output connector 16, the electrical circuit 18 including a test point 30 to which a test module 36 may be connected, the test point 30 being electrically connected to the output connector 16.

Abstract: A power supply arrangement is described that comprises a power supply module 10 including a supply connector 14 and an output connector 16, and an electrical circuit 18 interconnecting the supply connector 14 and the output connector 16, the electrical circuit 18 including a test point 30 to which a test module 36 may be connected, the test point 30 being electrically connected to the output connector 16.