From: CFKinsey@military.org.jp
On Thu, 27 Feb 2020 23:13:38 -0000, default wrote:
> On Thu, 27 Feb 2020 20:58:13 -0000, "Commander Kinsey"
> wrote:
>
>> On Thu, 27 Feb 2020 13:16:10 -0000, default wrote:
>>
>>> On Wed, 26 Feb 2020 19:35:17 -0000, "Commander Kinsey"
>>> wrote:
>>>
>>>> On Tue, 25 Feb 2020 11:40:23 -0000, default wrote:
>>>>
>>>>> On Mon, 24 Feb 2020 19:28:48 -0000, "Commander Kinsey"
>>>>> wrote:
>>>>>
>>>>>> On Mon, 24 Feb 2020 12:45:55 -0000, default
wrote:
>>>>>>
>>>>>>> On Sun, 23 Feb 2020 20:08:45 -0000, "Commander Kinsey"
>>>>>>> wrote:
>>>>>>>
>>>>>>>> On Sun, 23 Feb 2020 19:57:08 -0000, default
wrote:
>>>>>>>>
>>>>>>>>> On Sun, 23 Feb 2020 18:30:55 -0000, "Commander Kinsey"
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>>> On Sun, 23 Feb 2020 13:15:28 -0000, default
wrote:
>>>>>>>>>>
>>>>>>>>>>> And you shouldn't discount mitigating circumstances if safety is
>>>>>>>>>>> involved. I was working on my boat, hands covered with salt-water
and
>>>>>>>>>>> figured I'd have no problem with 12V, yet touching the battery
leads
>>>>>>>>>>> reminded me of every little cut, abrasion, torn cuticle, etc., on
my
>>>>>>>>>>> hands. Not lethal maybe, but disagreeable.
>>>>>>>>>>
>>>>>>>>>> I doubt it was even possible to harm you, even a 9V battery on your
tongue just stings. Mind you if you're up a ladder anything that gives you a
fright can make you fall off. I was painting my neighbour's eaves once and
his stupid wife tried
to have a bloody conversation with me from below. It was the only time I've
used rather strong swearwords at her. Her husband found it amusing.
>>>>>>>>>
>>>>>>>>> The salt water and battery thing wasn't dangerous since there needs
to
>>>>>>>>> be sufficient current through a vital organ. (the Navy said 100
>>>>>>>>> milliamps - but not how they arrived at that figure) It was
>>>>>>>>> disagreeable enough to make it hard to work on the system.
>>>>>>>>
>>>>>>>> I heard something I believe is a myth, that someone in the army gave
himself a heart attack from a multimeter on resistance mode by holding each
end with a cut finger. No way there's many milliamps from those things. I
think the accepted
amount for death is somewhere around what you said the Navy said (hence
breakers trip at 30 or 50mA).
>>>>>>>
>>>>>>> Those old hand-cranked "meggers" (insulation testers) were reputed to
>>>>>>> give an impressive shock. I never used one that was the bailiwick of
>>>>>>> the antenna people. At a transmitter site I saw one guy have a spark
>>>>>>> jump from his ass to the scope cart behind him when the safety
>>>>>>> discharge contactors and his shorting stick failed. Old WW2 large HF
>>>>>>> transmitter. He wasn't killed but did go into shock after laughing
>>>>>>> about it, we had to get him off the mountain and to a hospital.
>>>>>>
>>>>>> What a pussy. Awww were his buttocks sore? Hospital indeed....
>>>>>
>>>>> I doubt he had control. He started shaking, sat down, passed out and
>>>>> his extremities were getting cold. The building was cold- a twenty
>>>>> horse blower in the basement blew air up through the transmitters, 200
>>>>> watts to 100 kw, in Alaska. The transmitters heated the building.
>>>>> (mostly 40kw SSB rigs fsk modulated)
>>>>
>>>> A jolt through a large muscle shouldn't make you do that. He was clearly
a pussy.
>>>
>>> And you delight in being obstreperous.
>>
>> No, just stating a fact.
>
> The shorting hook (used to discharge the caps before working on the
> xmitter) was in one hand and the path was from that arm through his
> body and out his ass. Heart, lungs, liver, kidneys etc., are "vital
> organs."
And get damaged immediately, not later. He managed to laugh, THEN went into
shock? Shock is your brain giving up because it's useless.
>>>>>>>>>>> I'm using one of those so-called space blankets (aluminized
polyester
>>>>>>>>>>> film) to shield the light emanating from a indoor hydroponic
planter.
>>>>>>>>>>> With all the timers, pumps, lights, and fans, it seemed like a good
>>>>>>>>>>> idea to check the conductivity. One side is an insulator the other
>>>>>>>>>>> reads zero ohms everywhere I checked, even 5 feet apart. The stuff
>>>>>>>>>>> isn't totally light proof it just attenuates the light ~80%, so I
know
>>>>>>>>>>> the aluminum coating can't be very thick.
>>>>>>>>>>
>>>>>>>>>> One day that will fall down and short something and cause a fire,
I'd be careful if I were you.
>>>>>>>>>
>>>>>>>>> The potential is there. The lights use a current limiter, but the
>>>>>>>>> open circuit voltage is 80 VDC. Current limiting (300 ma) and the
>>>>>>>>> voltage is 30 volts or so. The pumps are 120 V submersible types and
>>>>>>>>> the prime danger IMO. There is a GFI and 5 amp circuit breaker built
>>>>>>>>> in too.
>>>>>>>>
>>>>>>>> You probably don't need much current to set fire to that blanket. Is
it flammable?
>>>>>>>
>>>>>>> It is plastic so I expect it is flammable, but from my experience with
>>>>>>> Mylar, it takes a high temperature without melting.
>>>>>>>
>>>>>>> I just tried it. It wouldn't light readily with a match but the torch
>>>>>>> did the job and it sustained a flame once lit.
>>>>>>
>>>>>> If you have one to spare, you could have some fun passing current
through it when in your garden, then you'd know if it's a fire hazard.
>>>>>
>>>>> No thanks.
>>>>
>>>> Better to know what it might do without trying it in your house.
>>>
>>> That's the reason I checked the conductivity. I just need to keep it
>>> away from the mains voltages.
>>
>> Floppy things can touch things you don't expect them to.
>
> I'll keep that in mind. The risk is mine, no one else's.
You are one of a very small number of people with that common sense. Most
seem to think everyone must be safe at all costs or be jailed for life.
>>>>>>>>> It weighs 50 pounds or so with a large footprint and low center of
>>>>>>>>> gravity,
>>>>>>>>
>>>>>>>> My house still has fuses. I detest nuisance trips.
>>>>>>>
>>>>>>> My wife's house had plug fuses,
>>>>>>
>>>>>> You say "plug fuses" like that's a bad thing. All UK plugs have fuses.
>>>>>
>>>>> Those edison-base, screw-in, fuses in a panel? Those turkeys are
>>>>> expensive if you can even find a source today.
>>>>
>>>> No, the fuse is inside the plug, meaning every single appliance has its
own protection, like this:
>>>> https://c8.alamy.com/comp/b6exht/replacing-a-13-amp-fuse-in
a-domestic-uk-electric-plug-b6exht.jpg
>>>
>>> That is an excellent idea IMO. We don't have that requirement in the
>>> US, and finding it is rare. I've only seen that once in a US plug.
>>
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