Not all lines lower on Telephone Poles are Low Voltage Beware what looks like 3 twisted thick wires which look like Phone Lines they are actually 23,000 volts ?

Yes if you have ever been to any  electrical safety classes or been a fireman and seen the poster showing what voltages are where on a pole it usually starts with  Phone and cable at bottom then service wires to home and business which are  120/230   then at top 4700 volts  all the way to 45,000 volts or higher

But this is not always the case  some utility's like Duquesne Light Company  run a sub feed line between  substations which consist of   3 large  oil filled  lead and rubber lined wire twisted together  which look like phone lines but are not and these run above the 120/230 volt service lines .People often mistake what they are seeing are telephone wires and it could have very deadly consequences for them if they think so and approach one at an accident scene think hey are phone lines.

As you can see in picture above there are 3 wires with large insulators attached which are feed  from
high voltage wires  above and then go down pole and begin to twist these wires are above the 120/230 service wires. yes they look like phone wires but they are not they have as much as 23,000 volts running thru them . these are used  to allow multiple high voltage wires to be run on smaller poles  and around and thru tight areas open high voltage wires can not be run and also used to feed high voltage into some commercial and industrial buildings transformers,like I have at one of my indistrail customers in Baraddock Pa.
Even thou they look like 3 twisted phone lines they are not.

This is exactly why

 ALL DOWNED  WIRES    PHONE - CABLE - POWER SHOULD BE CONSIDERED ENERGIZED  ( LIVE )AND POWERED AND NOT APPROACHED EXCEPT BY TRAINED ELECTRICAL PERSONAL

Even a simple cable wire can have as much as 70 volts running in it  and telephone and cable wires can become energized when high voltage wires fall on them during an accident

STAY SAFE STAY ALIVE   AND STAY AWAY FROM DOWNED LINES 

If your a contractor running wires between buildings and poles get proper training so ypou know to avoid these dangers .Especially when using bucket trucks and lifts .