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Old 04-12-2009, 01:27 AM   #1
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can i use an electric mower near a transformer box?


there is a green transformer box in my lawn. it's said on the box that"keep energized electrical equipment 10feet away" will anything bad happen if i use a 12 amp electric mower very close to the transformer box? tia

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Old 04-12-2009, 01:56 AM   #2
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can i use an electric mower near a transformer box?


Relax. You'll be fine.

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Old 04-12-2009, 08:37 AM   #3
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can i use an electric mower near a transformer box?


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Relax. You'll be fine.
Thanks. so what does the warning on the box try to prevent?
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Old 04-12-2009, 09:24 AM   #4
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can i use an electric mower near a transformer box?


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Originally Posted by fast1 View Post
yup you can do it. what does the warning say?
The warning says "keep energized electrical equipment 10 ft away" from the side with the door and "3 ft away" from all other sides.
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Old 04-12-2009, 12:19 PM   #5
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can i use an electric mower near a transformer box?


They do not want you to hit it and damage it. Relax and get to mowing the lawn.
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Old 04-12-2009, 01:45 PM   #6
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can i use an electric mower near a transformer box?


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Originally Posted by arthdo View Post
there is a green transformer box in my lawn. it's said on the box that"keep energized electrical equipment 10feet away" will anything bad happen if i use a 12 amp electric mower very close to the transformer box? tia
You have any nameplate data from the box? Make, model, serial #, a photo?
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Old 04-12-2009, 03:00 PM   #7
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can i use an electric mower near a transformer box?


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Originally Posted by Yoyizit View Post
You have any nameplate data from the box? Make, model, serial #, a photo?
Here it is, thans for the help. Does the "50" mean it operates at 50Hz? I thought all US utility frequency is 60Hz? If my equipment is at 60 Hz, will there be interference related problems?
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Old 04-12-2009, 03:06 PM   #8
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can i use an electric mower near a transformer box?


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Originally Posted by J. V. View Post
They do not want you to hit it and damage it. Relax and get to mowing the lawn.
Thanks, I'll just go ahead and do it. guess I can at least be in the headlines if it explodes
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Old 04-12-2009, 03:11 PM   #9
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can i use an electric mower near a transformer box?


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Originally Posted by arthdo View Post
Here it is, thans for the help. Does the "50" mean it operates at 50Hz? I thought all US utility frequency is 60Hz? If my equipment is at 60 Hz, will there be interference related problems?
From the label pic, they seem to want a clear space free of permanent structures around the 'former so they can get to it.
The "energized equipment" refers to the 'former.
Some people may cover the box over with a wooden housing or the like, plant bushes close by, etc., preventing access for servicing.
Your basement load center also has accessibility req'mts.

Last edited by Yoyizit; 04-12-2009 at 03:15 PM.
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Old 04-12-2009, 03:13 PM   #10
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can i use an electric mower near a transformer box?


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Originally Posted by Yoyizit View Post
They seem to want a clear space free of permanent structures around the 'former so they can get to it. The "energized equipment" refers to the 'former.
I see, that makes more sense. Thanks!
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Old 04-12-2009, 04:48 PM   #11
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can i use an electric mower near a transformer box?


I'm not sure how you read what you did from the label, because it says nothing that you quoted.

And the "50" is the kVA power rating of the transformer, which is basically 50 kW.
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Old 04-12-2009, 11:08 PM   #12
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can i use an electric mower near a transformer box?


I was picturing a 10 foot circle of 'wild tallgrass preserve' around the transformer.
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Old 04-13-2009, 12:28 AM   #13
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can i use an electric mower near a transformer box?


As stated above, they're just trying to cover their hides. The biggest thing here is they're trying to scare you into thinking you shouldn't go near the transformer.

The fact is, it's encased in a fairly thick metal box. What they don't want to happen is someone thinking this box is an ideal workbench. And drilling a hole in something on top of it. And drilling the hole into it.

If a hole is drilled into the top of the front half, where the connections are, and the bit is shorter than about 6", no big deal. If the hole is drilled into the back half, where the core and coils are, and the bit is longer than about 4", BOOM! Even if the bit were shorter, the oil would become contaminated, and sooner or later, BOOM!

You can safely get your mower right up to it without issue. Just don't mow the box open. lol.

Rob

P.S. Those numbers on the tag mean; 50 KVA aka 50,000 VA, or very close to 50,000 watts; the primary voltage is 13,200 (instant death if touched), primary current is 3.78 amps; secondary voltage is 120/240 (this is what goes to your house), secondary current is 208 amps.
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Old 06-01-2009, 08:34 AM   #14
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can i use an electric mower near a transformer box?


P.S. Those numbers on the tag mean; 50 KVA aka 50,000 VA, or very close to 50,000 watts; the primary voltage is 13,200 (instant death if touched), primary current is 3.78 amps; secondary voltage is 120/240 (this is what goes to your house), secondary current is 208 amps.[/quote]


Is 13200 voltage same as those high power lines? Will such transformer have potential healh risks to human? I have a same one in my front yard. Thank you!
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Old 06-01-2009, 08:49 AM   #15
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can i use an electric mower near a transformer box?


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Is 13200 voltage same as those high power lines? Will such transformer have potential healh risks to human? I have a same one in my front yard. Thank you!
No one has yet stated conclusively whether there are any ill health effects from power transmission. But we can be sure of one thing: the electromagnetic field of a table lamps is hundreds of times stronger than the power lines outside. This is simple physics, and is known as the inverse square law.

The voltage of high tension transmission lines is usually alot higher than 13,200 V. I have one a couple miles from where I live that is 500,000 V. But at any rate, it is NOT the voltage that determines the strength of the field, it is the current. And the amount of current flowing along those lines is probably just a few tens of amps at any given time. The appliances in your home have more EM effect on you.

If you want to be concerned, I'd be concerned about the high frequency radiation that is being beamed through us by radio, TV, and cell phone towers...

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