oldcro wrote:

northernmonkeyjones wrote:

Im convinced.

Though i think the voltage humans can tolerate is much higher, its the amount of current which kills you.... A low voltage shock can do a lot of damage if its accompanied by high current, whereas a hight voltage low current shock can be tolerable.

I think it is the other way round. Tazers shock you with 50,00 volts yet, when I worked in a chlorine plant the cells had 300,000 amps at 4.5 volts running through large exposed copper bus bars. Loads of magnetism in the air but no fear of harmful electric shocks.

so every ones agreed to agree then....



[must be xmas ] ... - .- -.




Y. O. L. O.
.

To make electricity understandable to people with no background in the subject, I usually use water hoses as an example. Voltage is equivalent to the water pressure and the current or Amperes is equivalent to the amount of water (=a larger diameter hose). Which is exactly what Dom was saying above with the electrons.

Only both together can provide the energy needed to do work and only bot together are dangerous. A spark plug will need 20000+ Volts to jump the gap - yet anyone who has ever worked on engines a bit will have gotten a shock from a plug wire at some point. Unpleasant but not dangerous.Think of this as a tiny hose with enough pressure to squirt over a house. The other extreme would be a fire hose with water slowly flowing out. Not dangerous either. Add pressure to the fire hose and it becomes dangerous. Or is able to achieve work.

 
RRC 2Dr, RRC 4Dr,
P38, and 2 L322s
(wife thinks I'm nuts - prob right, too)

which I think is what I was saying......

High Voltage low current - uncomfortable
High Voltage high Current - Dead
Low voltage high current -Possibly ok
Low voltage low current - like licking a 9v. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

I think in the near future we could see some of the car manufacturers changing to a 24v system to cope with the massive array of accessories now fitted to most cars

It's the current that will kill you not the voltage. The higher the voltage the easier the resistivity of the skin breaks down allowing a current to flow. If you limit the current flow as in a vandergraph generator then the voltage you can safely be in contact with is several thousand volts. 
2011 Range Rover Vogue 4.4 TDV8, Mine........ALL mine.
2012 Freelander 2 HSE SD4 - Mrs UkDave's new toy
2007 Freelander 2 GS TD4 - gone
2010 Discovery 4 XS - gone
2008 Discovery 3 HSE - gone
2007 Freelander 2 GS TD4 - gone

all i know is if you stick your fingers in that socket on the wall, it hurts...  ... - .- -.




Y. O. L. O.
.

Couple of things whatever the voltage used is stored energy in a cell, for lead acid that's approx 2 volts, hence 6ceels= 12v. other types of cell have different voltages. As for current, this flows in the opposite direction to the flow of electrons. As for safe voltage, it is considered that the safe touching voltage is 170 volts and this is how, for domestic electrical systems, it is derived that at 240 volts (domestic supply) a current of 30mA does not harm a person, hence the 30mA rating on RCD's and RCBO's. Gravity is a force attracting any solid object to another and this is why my golf balls always head for the trees