Jason Douglas
ArboristSite Guru
Wait til ALB hits...
Ropensaddle's comment may more accurately describe ALB than EAB...but we don't want to let it loose to find out so here's hoping the chainsaws keep it contained!Wait til ALB hits...
I stand corrected after working in California it seems some of the country uses a whole wierd construction method or configuration if you wish for power. Here all secondary's use cross arms I suppose it adds height. In the many states I did work for power this was the first time I saw the configuration 3 phase here are 3 wires not 3 and a neutral I am so used to seeing. Anyway for all the places I had seen until here it is 3 wires on top neutral below! I still can tell secondaries from high voltage in this configuration it is just an odd ball setup. Good you got that tree done safeOur service is single phase. The closest 3ph is 1/8 mile away and would've cost well over $10K to bring in or I would've done it. Instead, I went with variable frequency drives on all my machines; which was fortuitous because we're too far away from 3ph up North as well, so I'm ready for the relocation plug-n-play there now.
Pole to pole single phase distribution has one leg hot across the top and that wire is uninsulated (might not even be in the pics due to angle), those are connected to the single input tap on a step-down transformer which then makes 2 legs of single phase that are 180 degrees out from each other, and those lines are then run to the service run along with a central tap which becomes the neutral/return leg.
So from the top down on our utility poles you have:
High voltage uninsulated - single wire 13Kv (or thereabouts)
5ft lower you have the neutral, and two 120v legs of 240, which are insulated
2ft below that you have the phone/cable/internet bundles.
The low voltage signal wires are about 12' up from ground level.
13Kv is enough to make refried beans out of the burrito you ate for lunch! I'm well aware of the dangers should something hit it.
I also don't envision this take-down as getting into that line, but if I can get them to do it and not expose myself to the risk at all, that is the path we'll take. I can watch them remove it and maybe learn some things. That's win-win for me.
We have so little ash compared to other states i worked in like Indiana and Michigan. I mean folks should know by now the rope calls the acre he is standing on the worldRopensaddle's comment may more accurately describe ALB than EAB...but we don't want to let it loose to find out so here's hoping the chainsaws keep it contained!
They were able to contain it pretty well in Massachusetts. Do you really think it's a sure thing? I hope not for the trees sake.Yep quarantine and eradication efforts are going to be very very important in the near future.
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