Off hand, I can think of two components to this -- conductor heating, and noise/impedance. From a conductor heating POV, the NEC is fuzzy on specific distance but the general rule is to not bundle conductors for lengths greater than 18', or standard derates would need to be applied. With the costs of copper, I think you'd want to avoidunnecessaryincreasing of cable size wherever possible.<div>
<br></div><div>From a noise and impedance POV, I'd ditto what William Miller says but add twisting the cables if possible, and with the possible additional caveat of conductors of opposite polarity <i>serving the same device</i>. In most systems the DC negative (usually) conductors are common and therefore this might be moot, but it is theoretically possible to have a system with discrete components and discrete conductors. (Not sure what that system would look like, but just thinking out loud here...) In any case, in such a system bundling the positive of one inverter with the negative of another inverter probably won't have the positive impact desired.</div>
<div><br></div><div>Phil Undercuffler<br><div><br></div><div><br><br><div class="gmail_quote">On Sun, Jul 18, 2010 at 11:40 AM, Tom DeBates <span dir="ltr"><<a href="mailto:habitek83@yahoo.com">habitek83@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" style="font:inherit">hello Wrenches,<br>
Since we usually are using the batteries in back-up applications and thus AGM batteries, we like to stack them. So we make-up a steel (2"X2" angle) rack, have our tinner bend-up an enclosure, and get all parts powder coated. Expensive, but last forever.<br>
On another note; what is the skinny on bundling conductors of same polarity?.....Ok, bad? Searched the archives and the Internets and couldn't find a satisfactory answer.<br>thanks,<br>tom <br><br>Tom DeBates<br>
Habi-Tek<br>
524 Summit St.<br>
Geneva,IL. 60134<br>
630-262-8193<br>
fax 630-262-1343</td></tr></tbody></table><br>
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