Im finishing up with my gound mount array and Im going to be running my #6 solid ground wire tomorrow to each of the panels and on each of the enphase micros. Can I drive a grounding rod in the ground near my array, or does it Have to be ran to my main AC panel ground bus bar inside my house?
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#6 grounding wire grounding rod?
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Originally posted by Sunking View PostYes it does.
And running it to and connecting it to the ground buss would be a violation at least here. It must attach with an irreversable connection to the GEC.Last edited by Naptown; 10-06-2012, 10:17 PM.NABCEP certified Technical Sales Professional
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Originally posted by Naptown View PostIsn't there an exception for bonding for remote ground mount array's? At least in the 2008?
Exception No. 1: Ground-mounted or pole-mounted photovoltaic
arrays with not more than two paralleled source
circuits and with all dc source and dc output circuits isolated
from buildings shall be permitted without groundfault
protection.MSEE, PEComment
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This is an enphase installation. ECG must be carried back to the grounding buss.
Bondng In this case would be 2 parallel strings of inverters, mounted remotely.
DC source and output would be isolated Inverter output would be no more than 2 parallel circuits.
Ground ault protection is integral with those inverters.
Probably a judgement call by the AHJ.NABCEP certified Technical Sales Professional
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Originally posted by Naptown View PostThis is an enphase installation. ECG must be carried back to the grounding buss.
Bondng In this case would be 2 parallel strings of inverters, mounted remotely.
DC source and output would be isolated Inverter output would be no more than 2 parallel circuits.
Ground ault protection is integral with those inverters.
Probably a judgement call by the AHJ.
So run it back to the buss bar in my panel in my house?Comment
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Running it to the buss bar would not be an irreversable splice you will need to crimp it to the ground wire in the service panel or near the grounding point.NABCEP certified Technical Sales Professional
[URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]
[URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)
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Wow, who in their right mind would want to route a lightening hit back thru their house into the main panel? Ground loop voltage could be huge. Does the grd wire go under the house or thru the attic? Your main panel grd is for only bonding the the inverter and the negitive pv cable to grd. I would Ground the array with a 8' grd rod below your combiner box for the shortest path to grd, not thru your house to the main panel.Ret. System Dispatcher PG&E San FranciscoComment
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Originally posted by Bobodude View PostWow, who in their right mind would want to route a lightening hit back thru their house into the main panel? Ground loop voltage could be huge. Does the grd wire go under the house or thru the attic? Your main panel grd is for only bonding the the inverter and the negitive pv cable to grd. I would Ground the array with a 8' grd rod below your combiner box for the shortest path to grd, not thru your house to the main panel.NABCEP certified Technical Sales Professional
[URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]
[URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)
[URL="http://www.gaisma.com"]www.gaisma.com[/URL]Comment
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Originally posted by Bobodude View PostWow, who in their right mind would want to route a lightening hit back thru their house into the main panel? Ground loop voltage could be huge. Does the grd wire go under the house or thru the attic? Your main panel grd is for only bonding the the inverter and the negitive pv cable to grd. I would Ground the array with a 8' grd rod below your combiner box for the shortest path to grd, not thru your house to the main panel.[SIGPIC][/SIGPIC]Comment
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Originally posted by Bobodude View PostI would Ground the array with a 8' grd rod below your combiner box for the shortest path to grd, not thru your house to the main panel.MSEE, PEComment
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Originally posted by Sunking View PostThat is best practice but you are steel required to bond all electrodes to form a common system. It would be extremely dangerous if you did not.Ret. System Dispatcher PG&E San FranciscoComment
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Running it to the buss bar would not be an irreversable splice you will need to crimp it to the ground wire in the service panel or near the grounding point.
Land wire to the bus bar. You don't need to splice it. IF you splice it to a grounding conductor, THEN it needs to be an irreversable splice.Comment
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Originally posted by unclebeer View PostRunning it to the buss bar would not be an irreversable splice you will need to crimp it to the ground wire in the service panel or near the grounding point.
Land wire to the bus bar. You don't need to splice it. IF you splice it to a grounding conductor, THEN it needs to be an irreversable splice.SunnyBoy 3000 US, 18 BP Solar 175B panels.Comment
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