Stray Voltage Question

[zik69]

I test for stray voltage every two weeks and now and with all the equipment I get a reading of about 12-15v with the grounding probe out of the water. With the probe it's at 0v, so I should be fine, but I just want to make sure. It seems every piece of equipment adds between 1-2v. How much of a stray voltage is too much? Most of my equipment is new, but is this normal that everything adds a little voltage?

 

[robertmathern]

Thats good question. I dont have an answer but someone will. Now I am courios to find out myself. I think it would leave something in the water. But I dont know.

 

[statto]

All equipment will have a 'leakage' of a greater or lesser degree
Even tank lights can induce a voltage into the water
It doesnt really matter how much stray voltage is in your tank as long as it is reduced to zero when you fit a grounding probe.
Basically if you have a proper electrical breakdown then the probe will be able to get rid of the leathal current and trip your electricity out.
If you didnt have a probe then there is always the possibility that your tank would stay 'live' with a leathal current until you next put your hand in the water, then you would become part of the circuit to earth and you would recive the electrical shock.
Basically in a nutshell, if you have a probe fitted and your tank is at zero volts then you are fine
have you thought about fitting 2 probes? this is just a back up incase anything goes wrong with one of the probes.
(I have two probes in my tank)
Cheers
Statto
P.S. Im an electrical engineer

 

[zik69]

Originally Posted by Statto
http:///forum/post/2824011
All equipment will have a 'leakage' of a greater or lesser degree
Even tank lights can induce a voltage into the water
It doesnt really matter how much stray voltage is in your tank as long as it is reduced to zero when you fit a grounding probe.
Basically if you have a proper electrical breakdown then the probe will be able to get rid of the leathal current and trip your electricity out.
If you didnt have a probe then there is always the possibility that your tank would stay 'live' with a leathal current until you next put your hand in the water, then you would become part of the circuit to earth and you would recive the electrical shock.
Basically in a nutshell, if you have a probe fitted and your tank is at zero volts then you are fine
have you thought about fitting 2 probes? this is just a back up incase anything goes wrong with one of the probes.
(I have two probes in my tank)
Cheers
Statto
P.S. Im an electrical engineer
Thanks Statto, that helps a lot. 2nd probe isn't a bad idea, you can never be too careful.