Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread William Miller
Jeremy: You are welcome, but credit belongs to Kent Osterberg. wm At 09:02 PM 12/30/2012, you wrote: William, They are using the 2011 code, so we should be good. 705.12D2 exception is a little confusing at first, but I got it. Jeremy Sent via BlackBerry. Sorry for typos and shorthand! ___

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread Jeremy Rodriguez- All Solar Inc.
William, They are using the 2011 code, so we should be good. 705.12D2 exception is a little confusing at first, but I got it. Jeremy Sent via BlackBerry. Sorry for typos and shorthand! ___ List sponsored by Home Power magazine List Address: RE-wrenche

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread William Miller
Jeremy: Bingo! You have discovered the hard truth of grid tie with battery point of connection compliance (GTWB POC). Your inverter will through-transfer up to 60 Amps (A), so to use all of that capability, you should feed it with 60A. However, you are not allowed to feed the inverter with

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread William Miller
Kent: I do not have that document handy at this moment. Can you send the citation, please? Thanks, William Miller At 04:56 PM 12/30/2012, you wrote: If you are using the 2011 NEC, 705.12(D)(2) has an exception to the 120% rule for inverters with energy storage to allow for operation of lo

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread Kent Osterberg
If you are using the 2011 NEC, 705.12(D)(2) has an exception to the 120% rule for inverters with energy storage to allow for operation of loads. Kent Osterberg Blue Mountain Solar, Inc. www.bluemountainsolar.com t: 541-568-4882 On 12/30/2012 4:27 PM, Jeremy Rodriguez- All Solar Inc. wrote: I'm

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread Jeremy Rodriguez- All Solar Inc.
I'm concerned that the inspector will not allow a 60A back fed breaker in the 200A main panel as it exceeds the 120% rule Jeremy Sent via BlackBerry. Sorry for typos and shorthand! ___ List sponsored by Home Power magazine List Address: RE-wrenches@list

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread Gary Willett
Jeremy: The XW-6048 spec for maximum AC Input Current (maximum 75% imbalance between L1-N, L2-N) is: L-N: 41.2 AL-L: 27.5 A So, with a Line to Neutral current of 41.2A x 1.25 = 51.5A or rounds up to 60A 2-pole breaker. This condition could occur in a grid-tied configuration when the

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread Jeremy Rodriguez- All Solar Inc.
Ok, so 35A min., but what about maximum? A 200A mains panels allows 120% max back feed correct? Confused. Jeremy All Solar Sent via BlackBerry. Sorry for typos and shorthand! -Original Message- From: John Berdner Date: Sun, 30 Dec 2012 23:54:17 To: allso...@scswifi.net; RE-wrenches

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread John Berdner
Jeremy: 31.25 is the minimum allowable Ampacity (25 Amps continuous) so a 35 Amp breaker would be the minimum size per Code. The inverter may have a higher "pass through rating" to support the loads and so is likely the reason a 60 Amp breaker is specified. The pass through rating is typically b

[RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread Jeremy Rodriguez- All Solar Inc.
Wrenches, Since the XW6048 calls for a 60A breaker to feed the inverter input and we are connecting back to the load side of a 200A panel is this correct. 6000รท240=25X1.25=31.25A. We cannot exceed a 30A breaker? Help me understand this. Jeremy All Solar Sent via BlackBerry. Sorry for typos and