stray voltage diy led build

[ReefLEDLights]

With out a more detailed review it appears your fixture is Class II (Less than 60 VDC)

Resistors in DIY Builds are normally used to monitor current between parallel strings. By measuring the voltage drop across a resistor, you have current...V=I/R

I have helped with a few DIY builds and occasionally we have found one with a tad bit of stray voltage the source we could not find. The solution was using a 3 prong plug and grounding the heatsink...And it was gone...

I would not worry too much as if your build falls into Class II any stray voltage would be as dangerous as licking a 9v battery. To quote Johnny Dangerously "I only Did That Once"...

If this stray voltage is from 110VAC you have serious safety problems...

Hope this helps

Bill

 

[kpiotrowski]

I was concered that grouding the fixture may complete the circuit and cause increas load on the drivers. my limited knowledg speaking here.

so 52v is not concering then.

 

[ReefLEDLights]

I was concered that grouding the fixture may complete the circuit and cause increas load on the drivers. my limited knowledg speaking here.

so 52v is not concering then.

My Day Job all things considered safety first.

I'm more comfortable with a grounded v non grounded fixture...

52V will not kill you unless the current is well above the LEDs your using....

That said if the stray voltage is from the LEDs and soldering its a minor concern.

If its from a 15A 110VAC wall outlet I would classify it as serious concern...

Be safe and verify the source.

The good news is a lot of stuff coming out of Chine offers "serious concern"...Pet food included...

DIY offers complete flexibility.

52V @ 700ma is not a concern. I'm sure much more was used in interrogations without terminal injury...

After you solve the problem you will be more qualified in LEDs than those assembling fixtures in China with questionable parts...

Bill

 

[kpiotrowski]

Thanks bill!

I verified by unplugging the leds from the fixture and into an ext cord that its somwhere downstream from there.

but, basically this false within normal limits right?

 

[trido]

Kevin, I had 36VDC of stray voltage in my old DIY fixture. I could feel it when my hand was in the water and my forearm was pressing hard against the aluminum. A slight tingling on my skin. It was never a problem in the nine months I had it over the 210. No blown drivers. No blown fuses or resistors. Just corroded LED's from the fish splashing to much water on them. I switched to a prefabbed fixture with all the components protected.

 

[kpiotrowski]

Kevin, I had 36VDC of stray voltage in my old DIY fixture. I could feel it when my hand was in the water and my forearm was pressing hard against the aluminum. A slight tingling on my skin. It was never a problem in the nine months I had it over the 210. No blown drivers. No blown fuses or resistors. Just corroded LED's from the fish splashing to much water on them. I switched to a prefabbed fixture with all the components protected.

man that really takes a load off my mind! thanks.

and the led's being exposed...hindsight and the fixture was a good price at the time. this may sound funny but I tasted the heatsink for salt spray and can't taste it. fingers crossed!