LED Strip leaking AC reading.

[benxxxx]

I opened up a LED lamp that measured leaking AC voltage 70 Vac and sometimes after on is 78 Vac or so. The volt is stable AC and DC no reading.
I have checked with LED lights ON, the leakage is not from the driver, connectors,.... I isolated all drivers, connectors,.... away from frame to determine no AC leak but only LED strip that is glued to the frame. So last result LED strip leaked this AC voltage.

LED Driver Specification: 2 wires, AC 240 Vac 0.33A to 2 wires 24-40 Vdc, max 36W, max 900mA SELV.
LED connection: 5 LED in series, Total LED 120, type 5050 LED.
Measurements:
Driver output NO LOAD: 104Vdc
Driver output LED all ON: 72.8Vdc, 160mA
Ground to LED Strip Negative: 30M ohm
Ground to LED Strip Positive: 40M ohm.

Question:
Why is leaking AC, not DC?
What is SELV?

 

[newfutile]

what do you mean by leaking?
a voltage is a potential difference between 2 or more points ,presence of a voltage ac or dc means little ,its the current that flows or could flow thats important.
its usually a capacitor or other component for emi that causes these things , if from a reputable manufacturer all should be ok.

 

[benxxxx]

what do you mean by leaking?
a voltage is a potential difference between 2 or more points ,presence of a voltage ac or dc means little ,its the current that flows or could flow thats important.
its usually a capacitor or other component for emi that causes these things , if from a reputable manufacturer all should be ok.

Leaking means measure from ground of frame to AC ground. There is no capacitor and no resistor.
Its dangerous to have such high leakage.

 

[Tony M]

Leaking means measure from ground of frame to AC ground. There is no capacitor and no resistor.
Its dangerous to have such high leakage. YES

This happens as the Voltage passing through the whole LED strip (which is V oscillating at some frequncy) and the where the LED strip is mounted on a aluminium or steel frame, is induced inot the body. A multimeter has very high impendance so it will detet that voltage. so will a wet arm !
Simply add an earth wire to the frame