hausdok Posted January 21, 2013 Report Share Posted January 21, 2013 I didn't find any instructions for a "bond screw when used" on the label and didn't find a strap or bar. Maybe I'm just tired but I've studied it over and over and I just don't see where it's bonded to the enclosure - does anyone here? Click to Enlarge 35.89?KB Click to Enlarge 31.55?KB Click to Enlarge 28.04?KB ONE TEAM - ONE FIGHT!!! Mike Link to comment Share on other sites More sharing options...
Erby Posted January 21, 2013 Report Share Posted January 21, 2013 It's too blurry to tell but when I've seen that type of strap bonding the bus bars together (at the bottom) I've always found the green bonding screw a couple of holes down from the top of one bus bar or the other. Of course, sometimes there's just the hole with no screw in it. Link to comment Share on other sites More sharing options...
Jim Katen Posted January 21, 2013 Report Share Posted January 21, 2013 That kind of Siemens panel would have used copper bonding straps that secured to either the left or right side of the panel, where the arrows are in the picture. This one is clearly not bonded. Click to Enlarge 36.8 KB Link to comment Share on other sites More sharing options...
Jim Port Posted January 21, 2013 Report Share Posted January 21, 2013 Is that a 4 wire feed? If so it should not be bonded. If it is a 4 wire feeder there look to be neutrals on the left bus along with the jumper between the buses. Link to comment Share on other sites More sharing options...
Marc Posted January 22, 2013 Report Share Posted January 22, 2013 Is that a 4 wire feed? If so it should not be bonded. If it is a 4 wire feeder there look to be neutrals on the left bus along with the jumper between the buses. Looks like a typical 3-wire feed with an electrode grounding conductor going downward. Marc Link to comment Share on other sites More sharing options...
kurt Posted January 22, 2013 Report Share Posted January 22, 2013 What's that twisted aluminum conductor on the left going up? It looks like a 4 wire, sort of.....doesn't it? Link to comment Share on other sites More sharing options...
Tom Raymond Posted January 22, 2013 Report Share Posted January 22, 2013 There are three bare electrodes. It's bonded where they exit the panel. Who needs listed straps and screws? Link to comment Share on other sites More sharing options...
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