[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] Greenhorn Coiler



I don't think anyone here is suggesting that one should not be
extremely careful when working with any kind of high voltage
equipment.  I definitely agree with what you say about the buddy
system.

On Wed, Jun 11, 2008 at 5:36 PM,  <Mddeming@xxxxxxx> wrote:
>
>
> Hi Greg, All,
>     I have to agree with the statistics, but  cannot endorse the cavalier
> attitude behind them. For example,  statistically, in playing Russian roulette,
> you are playing "with the odds  tipped strongly in favor of survival" as you
> say, but IMO, it should be argued  against with utmost vehemence, because of
> the consequences of that one chance in  six. This is especially true when
> putting out information to extremely  inexperienced people who will most likely be
> working without supervision or  assistance of any kind. Many new coilers do not
> use the "buddy system".
>    One has to be mindful of both the audience and the  intent when defining
> dangers. As a pharmacological example. I took a  course back in the 60's where
> a lethal dose was considered that level where  mortality reached 50%, i.e.
> where one half of the people taking that dose would  not die. One could argue,
> quite logically, that ingesting less than the lethal  dose of arsenic or
> strychnine would be acting "with the odds tipped in  favor of survival",  but
> telling kids in high school  chemistry that "small doses probably OK" is not my
> concept  of responsible behavior.
>
> YOMV,
>
> Matt D.
>
> In a message dated 6/11/08 11:21:14 A.M. Eastern Daylight Time,
> dogbrain_39560@xxxxxxxxx writes:
>
>> a  12-15Kv 30 mA unit would be a standard choice. ( if you
>> get shocked by
>> this transformer there is a chance you will live, anything
>>  larger and
>> the chance drops to 0).
>> Scot D
>
> I strongly  disagree.  It's inaccurate to declare that any shock over 30 mA
> gives  zero chance of survival.  Were that true, I probably would have died two
>  or three times by now.  I'm sure several of my fellow list members can
> recall painful, but non-lethal incidents in their professional and/or hobby
> endeavors.
>
> I'm not a physician, but I do teach basic electronics using  professionally
> prepared materials.  According to USAF doctrine, the  lethality of an electric
> shock is determined by numerous variables including  the part of the body that
> receives the shock, the age and physical condition  of the victim, the
> duration of the shock, the amount of current, and the  promptness of emergency
> medical treatment.
>
> Under tragically ideal  conditions, 120 vac might kill an unfortunate
> homeowner, while a power line  worker who gets his hands blown off by contact with a
> 66kv line  survives.  I have survived very uncomfortable shocks from 115
> vac/400 Hz  aircraft current, as well as fierce "bites" from NST's, while the
> national  news outlets report several Taser (only 2-7 mA) fatalities every year.
> Likewise, how often have we read about a lucky golfer who survives a lightning
>  strike with nothing worse than a painful flash burn!
>
> Except under  carefully staged conditions, (like an electric chair!), a HV
> electric shock is  a crap shoot, with the odds tipped strongly in favor of
> survival.  I know  many people who have been shocked, but I don't know anyone who
> has died of  electrocution in my professional, social, or family circles.
>
> I'm all  for preaching safety, but the dangers shouldn't be overstated any
> more than  they should be  understated.
>
> Cheers,
>
> Greg
>
>
>
>
>
>
>
>
> **************Vote for your city's best dining and nightlife. City's Best
> 2008.      (http://citysbest.aol.com?ncid=aolacg00050000000102)
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla