I got a shock today...

[davelerave]

so is that a TT board then?? sorry i dont work in UK


looks like a supply for a shower maybe looped off??

 

[Skint Eastwood]

...part of the 2330 should have been safe isolation and a question in your exam on it. the way of isolating would be to get the dno to install an dp isolator...

But would anybody actually do that, prior to a simple test and inspection? I doubt it, but I appreciate your thoughts.

In my experience the 2330 is sorely lacking in many areas, not least in preparation for what will be encountered in the real world. This forum helps fill a lot of those blanks.

I remember safe isolation as in the procedure to be gone through before working on a circuit, ie locking off etc. I know nothing about DP Isolators or main fuses.

 

[nickblake]

its only 50 ma which could be fatal , always class even a dead circuit as live. if your poking around in a live board not recommended as you have found out , put one hand in your pocket ,this way if you do get a shock it will not travel right accross your heart and possible blow your hand away ,litttle story i was working on a over sink water heater took fuse out switched it off tested supply ,changed the thermostat , put fuse in switched on live tested it all ok ,switched off went to put cover back on stat wasnt quite in position so i grabbed the stat not realising id caught the switch with the cover my arm hit the sink like metal to a magnet next i remeber is i was on the other side of the room with one aching arm ,still alive though since that day ive always checked and double checked you may not have that 2nd chance treat with respect as you cant see if its live

 

[Phil]

tbh the 2330 does lack a lot to do with the real world. but before sticking fingers inside a board you have to look carefully and identify the risks, a previous post this week said "it bites and it bites hard" yeh that`s one to remember. not many people arrange for the dno to provide a means of isolation before any works i was just saying how the board could be isolated rather than pulling the fuse. don`t take most of the replies as a criticism just take on board the thoughts and if you are not ready to go inside boards with live parts wait till you gain more experience with a good spark that can show you the side of the job the college can`t or didn`t show you.

 

[rocker]

its only 50 ma which could be fatal

If you are a healthy 25 year old with no unknown congenital heart probem. The fact is that the little belt this guy had could have put his heart out of sync, and he could drop dead in a weeks time. Improbable, but not impossible.

put one hand in your pocket

This MAY help you as an absolute last line of defence. Do not rely on it.

EDIT: Sorry Nick, just re-read and realised your post wasn't a response to mine. The point still stands, though!

 

[nickblake]

Rocker i agree with all you have said never rely on anything just test and make sure its dead 100% did a inspection had the whole board switched off still a socket in the garage was live ,eventually found it to the incomming side of the cut out wired in 1.5mm twe ,protected by the fuse at the sub station

 

[Spa Key]

Looking at the supply T&E i would say its is supplied Via a submain somewhere in the building.

There are two sets of tails in that isolator.

 

[Skint Eastwood]

...the little belt this guy had could have put his heart out of sync, and he could drop dead in a weeks time...

HA HA HA! Thanks for that!

If I do drop dead in the next few days I'll be sure to let you all know.

 

[nickblake]

Heres a shocking Shock fact : A farmer was working in a field felt un well chest pains fell to the floor as he fell he caught his arm on an electric fence ,which restarted his heart , over the next few weeks he felt un well remebering when he had the first attack he went and touched the fence ,after a few weeks he had a massive heart attack ,and was rushed into hospital and given a tripple heart by pass and survived

 

[rocker]

I'll keep my fingers crossed for you lol

 

[Phil]

Heres a shocking Shock fact : A farmer was working in a field felt un well chest pains fell to the floor as he fell he caught his arm on an electric fence ,which restarted his heart , over the next few weeks he felt un well remebering when he had the first attack he went and touched the fence ,after a few weeks he had a massive heart attack ,and was rushed into hospital and given a tripple heart by pass and survived

with odds like that he can pick my lotto numbers for me the jammy sod

 

[davelerave]

Heres a shocking Shock fact : A farmer was working in a field felt un well chest pains fell to the floor as he fell he caught his arm on an electric fence ,which restarted his heart , over the next few weeks he felt un well remebering when he had the first attack he went and touched the fence ,after a few weeks he had a massive heart attack ,and was rushed into hospital and given a tripple heart by pass and survived

what happened next

did he go back to the fence again

 

[nickblake]

If the UK's electrical regs were put into force in America i wonder if they'd have to use an RCD on the Electric chair

 

[nickblake]

what happened next

did he go back to the fence again

not sure its probabley connected to the defib at the local hospital

 

[rocker]

I know someone who peed on an electric fence. By all accounts it was quite a spectacle!

A funny thing to do is lob a 9v battery in a 'trough' style gent's. Ever licked a battery? Imagine that right up the far-eastern!