Lol!Can you believe that ****! I mean who the hell leaves the screws at an angle.
if you think thats bad you should come to california. ive seen 3 phase single can pole pigs on a pole leaning way harder than that....Yes, and our electricity is slower, runs at 50 Hz, so fusing and wire sizes can also be smaller.
But on a more factual point, what I have seen from US distribution systems with single phase garbage cans on poles that lean over 20 degreees and fall down at every mild storm is not impressive, at all. I am of the opinion that distribution systems and residential installations in Europe are very much better than the typical US installations.
Ola
It does not work like that, 50 States have 50 sets of rules, which is what the writers of the US constitution intended & it has worked rather well.As an outsider, I keep my mouth shut wrt to all non-technical issues in the US power transmission and distribution.
Some technical issues are in need of change.
All large scale power generation is three phase. Rebuild all distribution to the same, which will decrease losses in a large number of distribution transformer and networks.
There is a VERY competentelectrical power body in the US, NERC. Let them rewrite the phletora of rules into a standardized, nation wide non negotiable rule book.
Increase the number of indoor MV switchgear stations. all with underground cable feeds .
My nightmare example is from New Orleans, close to the Audubon Museum, 200 m from the MIssissippi river. Outdoor 33 kv ( ?) where the entire station is infested with birds nests.
On real estate worth zillions. Scrap and replace with indoor metal clad which will occupy less than 10 % of present area and pay for itself.
tut
As an outsider, I keep my mouth shut wrt to all non-technical issues in the US power transmission and distribution.
Some technical issues are in need of change.
All large scale power generation is three phase. Rebuild all distribution to the same, which will decrease losses in a large number of distribution transformer and networks.
There is a VERY competentelectrical power body in the US, NERC. Let them rewrite the phletora of rules into a standardized, nation wide non negotiable rule book.
Increase the number of indoor MV switchgear stations. all with underground cable feeds .
My nightmare example is from New Orleans, close to the Audubon Museum, 200 m from the MIssissippi river. Outdoor 33 kv ( ?) where the entire station is infested with birds nests.
On real estate worth zillions. Scrap and replace with indoor metal clad which will occupy less than 10 % of present area and pay for itself.
Ola
thank god it does not. all nuke plants are regulated by the NRC- nuclear regulatory commission which is federal...Hope the same doctrine does not apply to Nuclear Power stations.
Ola
And 10.9 grade to carry the amperageHacks live all over the earth!
I would have used bolts - metric of course.
You willing to pay for undergrounding?The cost arguments for keeping transformers on wooden poles, makes little sense to me. We can do better than relying on 1800's technology in the 21st century. Weather is more severe and people are more reliant on electricity than ever before. The Electrical distribution network needs a transformational upgrade.
Why the hell not, putting up poles and having Mother Nature knock them down, causing fires, lost productivity and importantly injuries and loss of life, costs more than just $$$.You willing to pay for undergrounding?
Asking out of ignorance. Can overhead conductors carry more amperage because they are air cooled, whereas underground conductors would be in conduit.underground is not without problems.
You willing to pay for undergrounding?
You realize how expensive and how devastating it is to the forests to underground primary wire?The cost arguments for keeping transformers on wooden poles, makes little sense to me. We can do better than relying on 1800's technology in the 21st century. Weather is more severe and people are more reliant on electricity than ever before. The Electrical distribution network needs a transformational upgrade.
I hope you realize how expensive profit gouge and executes rates are which in some tiers is over 40cents per kWh. If you add on the costs to underground all equipment i wouldnt be surprused if most rate tiers get pushed close to 60cents or more per kWh....Why the hell not, putting up poles and having Mother Nature knock them down, causing fires, lost productivity and importantly injuries and loss of life, costs more than just $$$.
Plus the grid needs to be updated anyway, old technology has it's place but I don't think that this is it.
Yeah that all requires money. Profits Gone Elsewhere doesnt have the money for all that. Theyve gone bankrupt many times...Use three phase distribution ( ie 4 to 75 kV for US I think) with impedance grounding of around 15 A. Can be made for both Y and D coupled distribution transformers. Great way to minimize fire at ground faults.
Use indoor switchgear with minimal number or no disconnectors ( In the IEC world we use DCB`s, disconnecting Circuit Breakers from 45 kV to 850 kV)
If space is extremely expensive, build GIS. Today all major manufacturers have SF6 free insulation and switching gases. SF6 is around 20000 times as antigreen as CO2.
Use a phasor measuring module and collect data for all substations, valuable at post mortem and may even be able to signal that a network collapse is about to occur unless switching is immediately done. I sold 20 prototypes to a North American utility 1998.
Ola
No, underground would just need more insulation and the ground stays cooler than the air out here in the central valley where temps can sore well past 100* in the summer...Asking out of ignorance. Can overhead conductors carry more amperage because they are air cooled, whereas underground conductors would be in conduit.
You forget that it wasnt their lawyers that got them out of trouble but instead the very state government agencies charged with regulating them and governor newsalini himself... its no wonder why when you find out that CalPers is a major investor of Profits Gone Elsewhere among other government agencies... if Profit Gouge & Execute ultimately fails, then there will be huge fallout in the financial investments industry...Actually - we were paying for undergrouonding, but istead the money was giving shareholders a better return and the continued debacle of decomissioning things like Diablo Cyn (don't get me started on that) and the demolition of Humboldt bay and... well... damn.
Seriously. IF it were a priority, PG&E COULD HAVE undergrounded a LOT of the agen overhead infra they have, but it's cheaper to roll the dice and hire lawyers. After all, "What would the shareholders say???"
Ya know... I get that undergrounding (especially up in northeast california, where the big trees grow) is expensive and difficult... BUT... When you have a company that says "Hey, if the town burns down, our lawyers will get us out of it, and it'll be cheaper than the infra we could have been upgrading and installing for the past, IDK, 70 years".... WE, the rate payers, have been paying for infra maintenance and upgrades (including undergrounding where feasable) for, yeesh, decades now, and instead it gets routed to the "deferred" colum because, hey, our priority isn't infrastructure, it's investor relations.
That's PG&E. I mean, what are a few dead people and totalled out towns where thousands lived that had no reason to burn except for that effing disaster? Especially when it means our shareholders and execs won't get the return they feel they deserve.... because... Grrr....
And we won't even mention San Bruno and the entire fragile as hell ancient NG delivery system, OK?