SUBJECT: Lineman Dies When He Contacts Energized
Power Line in Puerto Rico
SUMMARY: On September 29, 1989, a 42-year-old male lineman with 19 years
of experience was electrocuted while attaching a 2,400-volt power line
to a pole-mounted insulator. The power line had been de-energized two
days earlier and the supervisor assured the lineman that the power line
was still de-energized.
A construction crew consisting of a supervisor, three class A linemen
(including the victim), a first-class lineman, a groundman, and two
truck drivers were assigned the task of correcting a malfunction in a
de-energized three-phase power line. When the crew arrived at the work
site, they found that one of the three phases had broken and fallen to
the ground. The supervisor instructed the victim to relocate the damaged
phase on the cross-arm of the pole to better balance the load on the
cross-arm. As the victim began to climb the pole he was assured by the
supervisor that the power lines had been de-energized. When he attempted
to relocate the damaged line he contacted another phase, was shocked,
and slumped backwards, prevented from falling by his safety belt. The
power lines at the work site had been energized by backfeed electrical
energy from a portable gas generator being used on the circuit. NIOSH
investigators concluded that to prevent future similar occurrences,
employers and employees must:
o ensure that established procedures for power line maintenance work are
followed at all times
o take special precautions to guard against feedback electrical energy,
including testing and grounding power lines prior to the initiation of work.
If you look you will find at least two moret that are much like this one.
The truth is Stormy thinks a volt is all that matters, and poles , do
not matter. And generators are all equal and all you need is a plug ,
to plug ' IT IN " . Hilbilly Darwinisim, in effect here. By by
Dummy: You can't have watts without voltage. And amperage.
It's analogy and the voltage was mentioned in an earlier thread.
Are you typical of ALL Mormons?
| > Many gennies have circuit breakers for this situation. I
doubt a 4 KW
| > power the grid (down to a lineman) without tripping off the
| > take chances?
| Let's say you're the only person fed off a particular 4K_volt_
pole pig, and
| ice storm has pulled the supply wire off.
| You've inadequately set up your generator, and the generator is
| the pole pig. The input side of the pole pig is now presenting
| an unsuspecting lineman. But that's the dead side, right?
| ends of the break are live.
| Expecting a 40 _amp_ breaker to trip fast enough (or at all) to
| life? Not a chance.
| Chris Lewis, Una confibula non set est
| It's not just anyone who gets a Starship Cruiser class named
| Many gennies have circuit breakers for this situation. I doubt
a 4 KW would
| power the grid (down to a lineman) without tripping off the
breaker. But why
| take chances?
That's a dangerous attitude. Your doubts are dangerous and
should be kept to yourself as you have zero, nada idea what
you're talking about. You only show your ignorance spouting crap
| And as a courtesy to all who consider this a heated and
| "YOUR A TOTAL IDIYOT!!!!!" hoping you feel better, now.
Now there's a great example of the pot calling the kettle black!
I consider it what I consider it, and that's all I consider it.
Moron, I mean, Mormon, I was just following your lead <g>.
|| Many gennies have circuit breakers for this situation. I doubt
| a 4 KW would
|| power the grid (down to a lineman) without tripping off the
| breaker. But why
|| take chances?
| That's a dangerous attitude. Your doubts are dangerous and
| should be kept to yourself as you have zero, nada idea what
| you're talking about. You only show your ignorance spouting
| like that.
|| And as a courtesy to all who consider this a heated and
| passionate topic
|| "YOUR A TOTAL IDIYOT!!!!!" hoping you feel better, now.
| Now there's a great example of the pot calling the kettle
| I consider it what I consider it, and that's all I consider it.
The recommendation for a proper transfer switch is a very good one.
The transfer switch allows you to leave everything inside the house more
or less as it is, and you get to run whole in-house circuits off the generator.
I'm just going to point out something that people missed when they started
talking about "suicide cords".
What you're trying to describe is run an extension cord thru
the wall and run your equipment off extension cords on the inside
of the house.
No need for double males/double females, or any of that sillyness.
Suicide cords are "required" (and code-illegal) when you're trying to
backfeed an existing circuit...
You want something slightly different.
Think of it this way, it's just a short extension cord running through
a hole. You could string a piece of suitable cord thru the wall
and attach the appropriate connectors. But, running power cord thru
walls is a code no-no.
You want a male receptacle on the outside of the building, and a female
on the inside - you need nothing more than a single box open at both
ends. You run an ordinary extension cord from the generator
to the male, and an ordinary extension cord from the female to the
loads you want to run.
You _can_ get weatherproof _male_ receptacles. I have one on my shed, so
that occasionally I can power a few things in my shed with an extension
cord from the house.
Obviously, with a 5000W generator, that's more than a regular extension
cord can handle. You'll need two separate sets (of 20A) for opposite sites
of the feed. Or, use a 4-wire connector/cable from the generator and a
mini-panel on the inside feeding a few circuits of its own...
And then you have to consider grounding et. al.
Once you think that far, you'll want to consider transfer switches ;-)
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.
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