This is A MOTOR

[TotalPackage]

http://www.plettenberg-motoren.com/UK/Motoren/Brushless/Teras_50/Motor.htm

[sjslhill]

14S.....@100 amps = 7.4HP Also, 14S voltage can kill you. 10S at full charge can as well.

[NativePaul]

5.8A and 2.6A without load on 11V, I wonder how much power it takes just to spin the motors at 10s and 14s.

[graill]

14S.....@100 amps = 7.4HP Also, 14S voltage can kill you. 10S at full charge can as well.

.8 amp can kill you.

SNOT the voltage but the amps.

[sjslhill]

Yes

I know that...... I stated 14S not 100 amps

.8 amp can kill you.

SNOT the voltage but the amps.

[ReddyWatts]

The higher the volts, the more amps can pass through your heart. It only requires 120ma to stop the heart. The body can be around 500 ohms in the right conditions and less if the skin is punctured..

V/R=I
50v/500ohms= 100ma

14s = 51.8 volts

Be careful with higher voltage batteries.

[graill]

Did you not see the smiley icon sjs? It was just a statement...to much salt in that popcorn?

However if we want to get into some factual reading.

And i wont get into the details buuuut.....mmm, formulas (grin) I taught this stuff for quite a while.

Avg Internal body resist is 300-1000 ohm, there is no right conditions, it varies with body composition and salt intake, sustained content or lack of. The majority of us are fine conductors as is at all times, what will kill me may not kill you. As for body temp, hot verse cold, a study was performed but found no substantial increase or decrease in resistance due to temp.

Avg External skin is 1000-100,000 ohms and a nifty forumla is:

Rtotal = Rskin(in) + Rinternal + Rskin(out)

Distance between entry and exit points vary the required volts and amps.

You only need 30v to do the job btw and push the small amount of amps needed.

And Osha can back me up on some of this including the voltage. Got anymore popcorn? Its all good.

Go ahead and cut and paste for reference, the formula will hit the Osha guidelines, always good stuff in there.

[sjslhill]

I was told that the IMPBA limit was set at 32 cells (NICAD) 48V at full charge.....not true according to your numbers......interesting, I guess NAMBA and the IMPBA could get sued for these rules. hehe

[ray schrauwen]

Get out the hydro gloves!

[graill]

I was told that the IMPBA limit was set at 32 cells (NICAD) 48V at full charge.....not true according to your numbers......interesting, I guess NAMBA and the IMPBA could get sued for these rules. hehe

You definately have got me there, I did not know FE boating clubs followed Osha standards for anything, I learned something today.

Since i do not belong to any clubs though, rules for voltage clubwise is something i always assumed when i saw it on these forums was for power limits class wise, not safety. I accept the education sir.

[AndyKunz]

The 48V comes from the telecom industry standards. AT&T in the early days did a lot of research to find a maximum "safe for most people" voltage. It is "safe" by declaration, though it may be fatal to certain individuals in certain instances.

Andy

[ozzie-crawl]

i have been electrocuted twice
one was 400 volts but i was lucky and got thrown backwards.
the other was a old soldering iron with a screw threw the side of it.
the screw shorted out and i was holding 240 volts for around 4-6 seconds
burnt a hole threw my finger to the bone,still have a inch by 1/2 scar
i reckon by the end of those few seconds my heart rate must have been close to exploding.
dont want to try a third time think i will keep with 4s packs

[sjslhill]

thanks Andy, I knew there was a reason....Ed told me years ago.

[TotalPackage]

This is a motor

http://www.plettenberg-motoren.com/U...s_50/Motor.htm

[JohnZ]

I used to do a lot of electronics repair including TV sets.
One night during class for TV service I accidently shorted across a 500v test point. I was using a Techtronic scope and was leaning against the scope case when I touched the probe to the test point. WOW! I saw stars that night and wasn't even outside!
I've been shocked several times when working for a cable tv company.