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Started By
Message
re: Interesting graphic on number of power poles damaged by Ida compared with other hurricanes
Posted on 9/16/21 at 7:37 am to fr33manator
Posted on 9/16/21 at 7:37 am to fr33manator
quote:
There were lots of poles with prior damage, weak spots, rot that were due to be replaced.
There were multiple poles in grand isle that were marked during the summer to be replaced on our street alone. I’m assuming they’ll be replaced now.
Posted on 9/16/21 at 7:48 am to NorthEndZone
When Gustav came through Baton Rouge my neighborhood looked like a wing of B-17s had bombed it. Our electricity was out for almost 2 weeks. 3 days after Gustav left I rode my bike trough the neighborhood and noticed that many of the power poles had broken in half about 10 feet in the air . Many oak tree limbs had fallen on the power lines and caused the poles to snap. Later I talked to some of the out of state linemen about the poles and they told me that the poles were dry rotted, they had been there since 1961 and never had been replaced. Entergy /Gulf States does not maintain their infrastructure very well.
Posted on 9/16/21 at 8:07 am to Turf Taint
quote:
Is there no way to bury a percentage of these lines every year as well as every hurricane repair?
Even if it takes 20+ years, closing off the risk and cost just makes common sense. Total economic cost plus life cost = we is stupid for this.
I’m theory this makes sense, but they are in business to provide power and get meters turning. Burying lines would not only delay power getting to the consumer who is clamoring to get it back, it delays turning the meters and making money
Posted on 9/16/21 at 9:09 am to NorthEndZone
I am an electrical engineer.
Burying distribution is not preferable due to the limitations and cost on the utility. If a municipality/customer wants it they pay the difference in an overhead vs underground cost. Wire capacity is the limiting issue, in which you have to build more facilities from a substation perspective which cost more. I can elaborate if someone legitimately wants to understand.
In addition, all overhead meter bases would need to be converted to underground. The utility does not own the meterbase so that cost would be on the customer.
Concrete poles are no longer used due to manufacturing issues. The rebar in the pole ends up being a path to ground. I can explain that further if someone is interested.
Composite poles are being used but they cannot be climbed so they have to be installed where there is truck access. Also 4x the cost of wood poles.
Most utilities have a pole replacement program. There are a lot of poles. This shouldn’t need explanation.
Entergy is self insured. The government doesn’t reimburse for storm damage.
I can’t remember the other question posed in the thread.
Burying distribution is not preferable due to the limitations and cost on the utility. If a municipality/customer wants it they pay the difference in an overhead vs underground cost. Wire capacity is the limiting issue, in which you have to build more facilities from a substation perspective which cost more. I can elaborate if someone legitimately wants to understand.
In addition, all overhead meter bases would need to be converted to underground. The utility does not own the meterbase so that cost would be on the customer.
Concrete poles are no longer used due to manufacturing issues. The rebar in the pole ends up being a path to ground. I can explain that further if someone is interested.
Composite poles are being used but they cannot be climbed so they have to be installed where there is truck access. Also 4x the cost of wood poles.
Most utilities have a pole replacement program. There are a lot of poles. This shouldn’t need explanation.
Entergy is self insured. The government doesn’t reimburse for storm damage.
I can’t remember the other question posed in the thread.
Posted on 9/16/21 at 11:47 am to Shanegolang
quote:
Ive also read that ground water would be a huge problem, leaking into the lines. Then at that point, as someone pointed out, it would be a nightmare determining where the problem is. Simply not feasible for may reasons to include also astronomical costs.
Ground water isn't that big of a deal because the lines are run through HDPE pipe that's fused and possibly even encase in concrete.
To find problems they put a fiber optic line that can monitor temps and other parameter's to figure out which section is having a problem but the reality is, that these lines rarely fail and the O&M costs and downtime are better than aerial.
Posted on 9/16/21 at 1:45 pm to NorthEndZone
Odd for Entergy to wander off into potentially a political minefield at this point....



Posted on 9/16/21 at 2:00 pm to NorthEndZone
Genetically modified storm.
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