Josh,

 

No formal RFI is necessary at this time. I have spoken with our lighting sub and he has no issue with the proposed solutions that Durable has presented. Please proceed with these changes
and keep track of revised quantities. Let me know if you have any questions.

 

 

Michael Barbier, P.E.

Civil Engineer

 

	

	
HALFF ASSOCIATES, INC.

1201 North Bowser Road

Richardson, Texas 75081

Phone 214-217-6643

Fax 214-739-0095

www.halff.com

	 

	

 

 

 

From: Clay Barnett [mailto:cbarnett@addisontx.gov] 
Sent: Monday, August 08, 2011 8:45 AM
To: 'Josh Hodsdon'
Cc: 'Andy Nord'; Patrick Bryan; Barbier, Michael; Romanowski, Mike; Cline, Nancy S.
Subject: RE: Electrical issues

 

Josh,

 

Could you put it in an RFI format so that Halff could respond?

 

Thanks,

Clay Barnett, P.E.

Town Engineer

Town of Addison

16801 Westgrove Drive

Addison, TX 75001-2818

Office: (972) 450-2857

 <http://www.addisongreen.info/> 

 

From: Josh Hodsdon [mailto:josh@ntexcon.com] 
Sent: Friday, August 05, 2011 3:52 PM
To: Clay Barnett; 'Barbier, Michael'; 'Romanowski, Mike'; Nancy Cline
Cc: 'Andy Nord'; Patrick Bryan
Subject: Electrical issues

 

Clay,

 

Durable has brought a few electrical issues to light now that all of the underground is in place and they have begun setting the uplight boxes.  The first issue has to do with the draw
on three of the lighting circuits.  They have found that they have a 13.3A draw on a 15A circuit (3 ea).  This is not allowed per code as I understand.  They have proposed installing
three 20A breakers to rectify this issue.  The second issue is a concern that there may be a problem with “overheating” the uplight boxes due to the amount of wiring and the current
in the small boxes.  The last request is to reduce the 4-#6 wires for the uplights to 4-#8 due to the size of the conduit specified in the plans and according to their calculations the
#8 wires would still be enough to carry the current.  Below is a little more of their explanation:

 

“The plans show for 3-#6 AWG and 1-#8 AWG wires to be pulled to the tree lights.  We have two concerns here one being if that meets code with the size of the box and the amount of heat
the ballast will put off and secondly physically being able to get all the wires in (essentially 6-#6 AWG & 2-#8 AWG wires, 4 in and 4 out) the box and making the connections.  If you
remember these lights were a CO and the original boxes may have been larger.”

 

Please review these issues and let me know if you have any questions.

 

Thanks, 

 

 



Josh Hodsdon

Project Manager

 

North Texas Contracting, Inc.     4999 Keller Haslet Road     Fort Worth, Texas     76248

 

M: 817.401.1913     O: 817.430.9500     F: 817.719.9440     E: josh@ntexcon.com <mailto:JHODSDON@NTEXCON.COM> 

 

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