Isuzu Trooper Owners Club UK™

Gribble · Posted: Mon Jan 24, 2011 23:52 Post subject:

16 or 24 lbs ?

Google · Sponsor

marcus 06 · ** Joined: 27 Feb 2010 Posts: 96 Location: france

I normally start small then move up and get more brutal.

MikT725 · Posted: Tue Jan 25, 2011 21:10 Post subject:

Just be very careful 240V shocks hurt but dont normally kill that often a 415V shock is less common, you have to get yourself between 2 phases, but is much more likely to stop your ticker, my advice always work dead, always test before working (never take someones word for it) and if in doubt get some one who knows what they're doing, advice from an electrician.
What is the job ? sign7

_________________
1999 3.1td SWB Trooper. RIP
2004 3.1td LWB

tormod · * Joined: 19 Dec 2010 Posts: 27 Location: Scotland

A phase to phase fault (line to line) when you are creating the fault (a short circuit) and the resulting current is flowing through you will almost invariably result in severe burns and heart problems at best; but much more likely a fatality.
Such work should never be undertaken LIVE with a line to neutral (star point) voltage of 240 V and absolutely NOT on a line to line voltage of 415V.

Why anyone would undertake such work live is demonstrating nothing other than your inexperience and your distinct lack of kowledge and respect of the energy levels you are dealing with. Isolate and fault find on dead systems even at line to neutral (ground/ earth) voltages of 240V and especially at any voltage higher than that.

Gribble · Posted: Tue Jan 25, 2011 22:01 Post subject:

Tormond wrote - Posted: Tue Jan 25, 2011 20:43 Post subject:

--------------------------------------------------------------------------------

A phase to phase fault (line to line) when you are creating the fault (a short circuit) and the resulting current is flowing through you will almost invariably result in severe burns and heart problems at best; but much more likely a fatality.
Such work should never be undertaken LIVE with a line to neutral (star point) voltage of 240 V and absolutely NOT on a line to line voltage of 415V.

Why anyone would undertake such work live is demonstrating nothing other than your inexperience and your distinct lack of kowledge -Knowledge ?

Thank you for you post but I am currently in possesion of a current PTS sentinel card for open line working DC & AC up to and including overheads 22,000 volts and LUL Track Competent - thats the one where the lookout blows the whistle and you get 12 seconds or so to jump over 3 sets of live positive and negative traction rails to get to the refuge before the train comes which in case you didnt know is how work on the London Underground is done outside of engineering hours .

How would you find a 3 phase motor overload fault then and what use are currrent clamp meters then ? Or do you advocate turning off the power each time to relocate the clamp ?

MikT725 · Posted: Tue Jan 25, 2011 22:17 Post subject:

tormod · * Joined: 19 Dec 2010 Posts: 27 Location: Scotland

Fine!

I accept all that's been stated. But I also restate that unless you have the knowledge and experience or in other words, the competence NEVER undertake live system testing. Even when you have such competence the default condition should always be to work on DEAD systems if at all possible.

There are always specialists that require to do work that will kill the uninitiated but these people fall into a very unique group of individuals.

The general rule for all is if you can isolate the energy source, be that electrical, mechanical, chemical, nuclear, potential and or kinetic, then that is what is required to avoid injury or death.

Common sense is all that is required to preserve wellbeing