Hi Jeff Just wondering why silver? Lower impedance or higher melt temp or both?
Randy VE3JPU On 2010-03-20, at 1:39 PM, Jesse Lloyd wrote: That answers it, thanks. On Sat, Mar 20, 2010 at 10:11 AM, Jeff DePolo <j...@broadsci.com> wrote: > What happens if I have a strap running horizontally nailed flat on a > wall and I need to go vertically down with another strap to tied onto > it making a T. This vertical strap would also be nailed flat on the > wall. Wouldn't this sharp corner present a high impedance? Yes, to some degree, but with relatively wide (3"+) strap, it's not that big of a problem since the strap is kept flat rather than being bent/folded back toward itself. It's when you have to make a hard 90 by folding the strap into an L that it's more of an issue (for example, if it was coming down the wall vertically and you transitioned to horizontal to run across the floor by making a hard 90, that's a worst-case scenario). If you want to improve further on the "flat" T, you can take two additional short pieces of strap and lay them diagonally across the inside corners of the T at a 45 degree angle, sort of converting the T into a filled triangle, fold the excess over the main strap runs, then silver-solder all of the overlaps/joints. >Would it > be better if the vertical downward strap be tied on top of the other > strap so it starts to run horizontally, then twisted 90 degrees turned > down with a 12" bend radius then twisted again so it can be nailed > flat on the wall or is this unnecessary? No, I wouldn't do it that way. > My next question is along those lines as well. If I have a run that > goes horizontally flat along a wall is it ok to cut it then run a > vertical strap flat down the wall down making a basically a sharp 90? Maybe I'm not understanding the question, but how is that different than the original question? Is the question how to transition from horizontal to vertical, but not needing to continue the horizontal run as in the case of the T? If so, then either you can make two 45's in succession, or do the same thing as I described above for the T, using a short piece of strap at a 45 degree diagonal across the L. --- Jeff WN3A
