Question about power line from pole to transformer

   / Question about power line from pole to transformer #1  

zene55

Silver Member
Joined
Aug 31, 2010
Messages
125
Location
Dripping Springs, TX
Tractor
Kubota L2800
I have two lines from the road that run to my transformer. I think one is the hot line and one is the common. If so can you get zapped touching the common line?

My concern is the anchor wire for the corner pole is touching the bottom wire and runs to the ground.

Should I call the power company and report this?
 
   / Question about power line from pole to transformer #2  
As far as 1 "hot" and the other not, I wont even guess. But the support wire is touching one of the lines?? That is Odd to me, usually the support line is opposite of the power lines, or rather pulling the pole away from the line pull. I would call them yesterday if it was me.
 
   / Question about power line from pole to transformer #3  
On a properly constructed and maintained utility system this should not be an electrical safety concern.

A guy wire rubbing on a system neutral (the ground wire on a grounded-Y system) is not good from a mechanical standpoint. Construction varies between companies but many bond guy wires solidly to the neutral in rural areas.

The ground wire is the return path for single phase loads. However, each single phase transformer will have a ground rod installation meant to carry the current to ground, which then travels through the earth back to the main substation. The downlead to the ground rod MUST also be connected back with one or two (for extra safety) separate jumpers to the system neutral.

Even though the system neutral, ground wires, and anchor downleads are normally safe one should treat them with respect. Poor maintenance or broken connections can create safety hazards. Also, high-current fault conditions such as equipment failure or lightning flashovers, can cause high voltages to ground.

Google "grounded wye" for articles.

Although your situtation is likely safe, it is likely best to report your concern.
 
   / Question about power line from pole to transformer #4  
Should I call the power company and report this?

Power lines aren't something you want to screw around with. Call them ASAP!
 
   / Question about power line from pole to transformer #5  
I'd vote call them too. I figure there's little to lose.

To cut a long story short, I was once at my father in laws house and attempting to replace a burnt element in his water heater.

Consequently, I was sitting in some moisture on the ground. Panel switch was killed to heater (did it myself and checked with VOM) and I was getting a mild shock every now & then.

Finally, killed power to entire house and was working in pitch black with a flashlight being held behind me STILL getting a mild shock every now & then.

Finally got the system back together turned things back on and nothing blew up.

Called brother in law (electrician) and seems he called the power company the next day.

Turns out that somewhere along the pole line, one of the wires had snapped and was laying on the ground allowing juice to work through the ground (dirt earth) and I guess up through the ground wire of the system.

(??)

I dunno....all over my head but all I know is they came out pronto and found their broken wire because of this and got it fixed.

Electricity always makes me a bit nervous, especially if I'm sitting in a puddle of moisture around a 220V appliance.
 
   / Question about power line from pole to transformer #6  
I'd call too if you have any doubt.

There should be 3 wires coming to your house if the transformer is mounted out on the pole and if you have 220v


If the transformer is on a pad near the house there would be 2 wires to it and it will be high voltage <4000 volts coming to the transformer.

tom
 
   / Question about power line from pole to transformer #7  
Around here, the top wire is hot and the bottom one is ground/nutral? but regardless what it's called ALL of the guy wires are jumped/attached to it on purpose, as well as another copper ground to a rod at the last pole.
 
   / Question about power line from pole to transformer #8  
If you have a 220/240 volt service and the old style power company connection, both wires should be hot. The ground and/or neutral is accomplished via ground rods at both ends of the service connect.

If you are only receiving 110/120 volt service from the power company, that is very unusual and in that case one of the wires could be a neutral, if utilizing some of the old service connects that were installed many years ago.

In your situation, I would bet you have a 220 service, both lines should be hot, but the one line in contact with the guy line may or may not still be functional due to the guy line not being grounded itself or the service supply trip fuse could have tripped and the one wire may be dead, thus you are only receiving 110V.

As you can see, with all of these variables, it is nothing for you to monkey around with. In the fire service we have a saying, we take care of the fire, the utility company takes care of the utility service. Sometimes situations cause varying from this general policy, but in any case, contact your utility company to deal with the situation to avoid potential bad outcomes.

The utility companies prefer to have customers call them to deal with any situations the customer is not familiar with. They don't like to have the general public working on their equipment. All kinds of liability situations can result from that.

Be safe, call for assistance.

Nick, North West Farmer
 
   / Question about power line from pole to transformer #9  
IF IN DOUBT CALL!!
 
   / Question about power line from pole to transformer #10  
I'd vote call them too. I figure there's little to lose.

To cut a long story short, I was once at my father in laws house and attempting to replace a burnt element in his water heater.

Consequently, I was sitting in some moisture on the ground. Panel switch was killed to heater (did it myself and checked with VOM) and I was getting a mild shock every now & then.

Finally, killed power to entire house and was working in pitch black with a flashlight being held behind me STILL getting a mild shock every now & then.

Finally got the system back together turned things back on and nothing blew up.

Called brother in law (electrician) and seems he called the power company the next day.

Turns out that somewhere along the pole line, one of the wires had snapped and was laying on the ground allowing juice to work through the ground (dirt earth) and I guess up through the ground wire of the system.

(??)

I dunno....all over my head but all I know is they came out pronto and found their broken wire because of this and got it fixed.

Electricity always makes me a bit nervous, especially if I'm sitting in a puddle of moisture around a 220V appliance.

Sounds suspiciously like a grounding problem. The neutral to the house is interconnected with the system neutral. That is why there should be multiple connections at transformer installations. If not, and the connection from the transformer primary neutral is broken at the pole, it will use the domestic ground, and if that is disconnected while you're hanging on to it you're likely dead.

Similar things can happen in areas with poor grounding such as rocky, sandy and gravel soils.

Years ago I had a summer job ground testing with the local hydro. I believe they tested all the grounds on a 7 year cycle. However, as I worked the next 30 years in the industry it seems this preventative testing disappeared. That is too bad because I think we found around 5 to 7% of the tested locations needed additional grounding.

It is a similar situation for line patrols. Where I formerly worked all lines had to be patrolled at least once per year. In the interest of efficiency I think that has changed and they mainly let things fail.

Such policies may save utilities money, but it's dangerous and there are hidden costs. I have logged 3 calls to the ONE call centre (400 km away) for BC to report deciduous trees contacting the primary line. It only happens if there is a strong west wind (which is seldom here). The third time this fall I got more insistent, so the lady logged it as an emergency. The line crew came out and said since it was not an emergency (but they agreed it does contact sometimes). So they called the brushing supervisor who is to arrange to cut the trees.

At the same time I told them of a HUGE dead pine leaning over the primary five spans north of my place. I said it would definitely come down if we got a strong wind. They shrugged their shoulders and said there's nothing they can do unless it's an emergency. Guess what! It came down two days later tearing through the primary and neutral and hanging up on the telephone messenger. The same two guys were out on that Sunday putting things back up, plus another crew came out on the Monday to complete the cleanup.

There are many other similar places I mentioned to the crew. There has still been no action on my trees or the others.

I will definitely be calling again before summer. This is not simply a safety or inconvenience issue. It is thick forest here and gets VERY dry in the summer. If these things happen during the wrong time the whole area is gone.

This is what happens when MBA's and bean counters run industries. The focus turns to money instead of safe, reliable service.

END OF RANT

:D

cheers
 

Tractor & Equipment Auctions

2006 CLEMENT INDUSTRIES ROLL OFF TRAILER (A47001)
2006 CLEMENT...
CAT 60in Bucket (A47809)
CAT 60in Bucket...
CAT 236B SKIDSTEER (A47001)
CAT 236B SKIDSTEER...
HEAVY EQUIPMENT PALLET (A47001)
HEAVY EQUIPMENT...
2016 Dodge Charger Sedan (A44572)
2016 Dodge Charger...
Subsoiler (A47809)
Subsoiler (A47809)
 
Top