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Author: Subject: Idiocy in action; don't be me
j_sum1
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[*] posted on 11-1-2023 at 23:53


Saves time on clipping fingernails I suppose.



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simply RED
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[*] posted on 23-1-2023 at 02:36


Rainwater, what caused that catastrophic event?



When logic and proportion have fallen sloppy dead...
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Mateo_swe
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[*] posted on 23-1-2023 at 05:52


Sorry for your loss, arkoma.

Rainwater, holy shit that looks bad.
You are so lucky you are alive after that one.
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Rainwater
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[*] posted on 23-1-2023 at 10:28


Been thinking about that for years
Bottom line, I got lucky 1000s of times.
Then luck ran out.

Do not do electrical work hot.
No exceptions!
Its against the law in most countries.
Someone explain this to my boss

15 years doing heavy industrial electrical.
I done this procedure 1000s of times
Got lucky was what i was really doing

We built a new 4000a gear to replace a 2000a gear
I was moving feeder circuits from one to the other.
One at a time, tested each wire for voltage.
Isolated and insulated each wire as it was removed.
Got to the ground, went to disconnect it.
Blind, deaf, hot
Felt like i had been hit by a car.
Got sprayed with a fire extinguisher
Someone guided me outside,
waited on an ambulance
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[*] posted on 13-2-2023 at 16:42


I had HMTD in a det-cap detonate on me today, luckily I was about 3 feet away and no injuries except for ringing ears.
I'm not sure why it detonated, maybe because a reaction between the HMTD and the vinyl or maybe an ESD.
If someone knows what could have caused this random detonation please reply.
I'm never making an organic peroxide ever again.
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j_sum1
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[*] posted on 13-2-2023 at 17:02


@ Rainwater.
Ouch!


Situation reminds me of electric arc furnace at a steel mill I once worked at.

Electrodes operated at 3 phase, 11000V (from memory)and very high current.
Electrodes were made of a graphite paste that was dumped inside a steel ring (diameter about 1.5 metres). As the electrodes eroded they would be continuously lowered. As new electrode entered the furnace the graphite paste would bake solid and the steel ring would melt away.

Obviously a new steel ring would need to be added to the top and more paste added as the electrodes were used up.
Arc-welding a new ring on was done while the furnace was in operation. It always seemed to me to be a crazy idea to be welding something onto something else running several thousand amps at high voltage. Let's just say that there were very strict protocols for keeping the systems isolated during the procedure.




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[*] posted on 14-2-2023 at 13:48


Quote: Originally posted by Raid  
I had HMTD in a det-cap detonate on me today, luckily I was about 3 feet away and no injuries except for ringing ears.
I'm not sure why it detonated, maybe because a reaction between the HMTD and the vinyl or maybe an ESD.
If someone knows what could have caused this random detonation please reply.
I'm never making an organic peroxide ever again.



Worth 1,000,000 million (a million million) words of warning from the rest of us. I'm 59 and STILL sometrimes think "Oh, it'll be OK to do this way just once"




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[*] posted on 14-2-2023 at 14:20


Quote: Originally posted by arkoma  
I'm 59 and STILL sometrimes think "Oh, it'll be OK to do this way just once"

That's 65 in base 9.

There are a few EM guys who have been forced to change base.




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[*] posted on 15-2-2023 at 11:27


Saw that last night (14-15 hours ago?) and JUST now got the joke. Good One!



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Yamato71
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[*] posted on 2-3-2023 at 19:03


Welcome to the club. I am NOT happy that you're here.
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