T5 Shock

picassotrigger1

New member
After countless visits and advice from friends on my 'shocking' situation, I still have questions

First, the story goes that I purchased a 24" T5 fixture from hellolights in December of 2008. It's the Tek look a like. I placed it over my aquarium in February of this year and have since been getting little stings from exposed metal and the screws. Now, this is not when touching water but rather touching the fixture alone. I have stuck my hand in water while holding the fixture and would get a slight shock from time to time but nothing different from just touching the fixture itself. Just last week I had gotten bit pretty heavily as my arm grazed exposed metal. Now I had contacted hellolights when the shocks first started happening and they said they had never heard about it before and they couldn't do anything since it was a sale item. So I kept the fixture and that leads to having been shocked hard last week. I email hellolights and this time they offer to have it sent in to get fixed.

The parts that have me confused are many different opinions, some from electricians and some from non electricians and the fact that at other places besides my home, I have plugged the lights in with no shock or readings on stray voltage. But the difference between those places and mine is that those places have grounded outlets.

One electrician tested the lights on a grounded outlet and got no readings on voltage, then he placed a two prong adapter to lose the ground and got a 50 volt reading on screws and exposed metal. He suggested I just place a ground, as any aquarium needs a ground. True, but it's not that easy. I am renting currently and have issues with my landlords as far as getting them to send an electrician to check the outlets and wiring. They ended up having someone come check and found the outlet I was using the lights on was broken and leaking volts in the light fixture, got readings of 116. They replaced the outlet and placed a 2 prong outlet since there was only a hot and neutral wire. I was gonna get a quote to pay for the ground myself, but again was having landlord issues and they said either get it done or not but that I couldn't get a quote since it's not my house. So I passed on it and have since broke my tank down.

Anyway, much advice has been given from friends, many things said that confuse me. Such as, I'm ok without a ground because if I wasn't, I'd be getting shocked by my TV and other appliances with 3 prong plugs and no ground in the outlet. And others saying that it's not so much there not being a ground but that I may have a leak in one of the wires in the house. And others saying that no, my problem of getting shocked by my lights IS BECAUSE I have no ground and the fixture is looking for a ground with it having a 3 prong plug.

My question is, which makes more sense to me, IS my fixture with a three prong plug looking for a ground and when there is no ground in the outlet, I'm the ground? But why is it doing that? I mean, why is there voltage just straying around? To me, it's like voltage going through the ground prong and not finding ground in the outlet and using me...does voltage go through the ground prong? I just figured the ground was there to stabalize things...I only thought power would go through hot and neurtal being there to also help stabalize things. I'm confused as you can tell. When my electrician plugged the lights in a grounded outlet, there was no readings, but once he took off the fixtured ground, he got readings. So that means that voltage is leaking somehow through the fixture, is that why it's trying to find a ground?
 
Sounds like you have a faulty unit (or it is just designed poorly). There should not be any voltage going to ground unless the neutral fails (which also should not happen). Any power going to ground is not only dangerous, but also wasting power IMO.

I would take them up on the offer to have it fixed. Oh and you really should think about a GFCI outlet for your tank before you end up getting more than just bit.
 
Ok, then my other question, why am I not getting shocked by other appliances like my big screen?

What makes the T5 fixture so different?

Thanks
 
<a href=showthread.php?s=&postid=14969003#post14969003 target=_blank>Originally posted</a> by Entropy
Sounds like you have a faulty unit (or it is just designed poorly). There should not be any voltage going to ground unless the neutral fails (which also should not happen). Any power going to ground is not only dangerous, but also wasting power IMO.

I would take them up on the offer to have it fixed. Oh and you really should think about a GFCI outlet for your tank before you end up getting more than just bit.

Yes, I wanted to install a GFCI but again was told various opinions...that it would not serve it's purpose without a ground and that I should have even without a ground but......
I have broken my tank down and will set up again, safer, when I move. It'd be a pain to fix anything further in this house
 
The fact that you are getting shocked at all tells me the unit is either faulty or poorly designed. There should be no detectable voltage going to the ground path. The biggest reason is wasting power. The flow is supposed to go from hot to neutral.

By the way a GFCI outlet will work without a ground and save your life. Without ground it probably will not save the equipment in the event of a failure, but it will trip and have a good chance of saving you. NEC code allows the replacement of two prong outlets with GFCI outlets as long as they have the "No ground" label on them.

"The NEC also has provisions that permit the use of grounding-type receptacles in nongrounded wiring (for example, the retrofit of 2-wire circuits) if a GFCI is used for protection of the new outlet (either itself or "downstream" from a GFCI). Art. 406.3(D)(3)."
 
<a href=showthread.php?s=&postid=14969068#post14969068 target=_blank>Originally posted</a> by Entropy
The fact that you are getting shocked at all tells me the unit is either faulty or poorly designed. There should be no detectable voltage going to the ground path. The biggest reason is wasting power. The flow is supposed to go from hot to neutral.

By the way a GFCI outlet will work without a ground and save your life. Without ground it probably will not save the equipment in the event of a failure, but it will trip and have a good chance of saving you. NEC code allows the replacement of two prong outlets with GFCI outlets as long as they have the "No ground" label on them.

"The NEC also has provisions that permit the use of grounding-type receptacles in nongrounded wiring (for example, the retrofit of 2-wire circuits) if a GFCI is used for protection of the new outlet (either itself or "downstream" from a GFCI). Art. 406.3(D)(3)."

Thanks Rich, that's what I was thinking. That something's wrong if it's giving any readings. I guess the stray voltage was finding a ground at other homes with ground, that's why there was no shock there. I will send it back to hellolights and have them check it and fix it.

Just got my new T5 bulbs Grim recommended yesterday too :mad:
 
i think they make adapters that are a 3-prong grounded plug that plug into a 2-prong & has a spade tip. you take the screw that holds the outlet faceplate on & put the spade tip under it. this grounds the outlet to the box....hopefully the outlet box is metal??
 
I don't like those adapters because you are never really sure the box (even if it is metal) goes any farther. Most homes and even apartments don't have metal conduit that runs all the way to the breaker panel.

Since your tank is broken down though, I think returning the unit is your best bet. Better safe than sorry. :)
 
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