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daestrom[_2_] daestrom[_2_] is offline
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Default Liability & responsibility of electrician?

krw wrote:
On Sun, 5 Jul 2009 17:29:04 +0000 (UTC), "Geoffrey S. Mendelson"
wrote:

Doug Miller wrote:
You're missing the point. This has nothing to do with the voltage supplied
by the utility. The utility doesn't supply 220V or 240V or whatever. They
supply (for example) 4KV. A transformer at the point of service reduces that
to 220V, or 240V, or whatever. Different transformers connected to the *same*
4KV primary voltage could easily produce different secondary voltages.

No, I'm not. When I lived in the US, (PECO) the electric company sold
me 240 volt 2 phase electricity. It was nominaly 127 volts, but often
dropped down during times of high usage.


240V isn't "two phase", rather single phase, or otherwise known as
"split phase". ...and it had better not be 127V (maybe twice that).

They did not supply or sell me 4kv volts, or anything else.


They supplied that to the pole. Please read.


What they carry on the pole is immaterial. What they supply to the
customer service entrance is the 'point of sale'.

Very few homes or light commercial service is in the 4kV range in the
US. The service entrance voltage is usually much lower, 240 or 480. In
these cases, the step-down transformer used to convert from distribution
voltage (e.g. 4kV) to the service entrance voltage is the utility's
responsibility.

The utility is responsible for supplying the voltage/frequency at the
service entrance / metering point of sale, not 'the pole'.

daestrom