The floating output of a Class II product, if measured to Earth may present a voltage of 80-100V AC, The reason is that there is a small capacitance connected between the output side (low voltage output) and the input side (mains) of a switch mode power supply from the safety approved Y-capacitors.
The limits for this leakage current is internationally set to safe values for humans (<250uA). The Voltage is therefore regarded safe to use, and expected.
My preference in such situations therefore to isolate the electrical parts from any user accessible metal parts, to prevent users noticing a tingle when touching them.
My questions relates to using a bond from the accessible metal parts to a safety earth instead.
1) The earth is not required for safety, only comfort but could it affect leakage current?
2) The application is a pre-existing installation, an LED strip powered from a class 2 supply with the led tape mounted to a metal extrusion which itself is mounted to a metal container. If the extrusion were to be earthed to the metal enclosure, would the assembly then be treated as class I or remain class II ?
3) Which standard(s) should I be referring to find these answers.
