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Basic stuff for basic blondes

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Sarz11

Hey just wondering if anyone has got any nice simple examples in the form of questions that you can offer in regards to working out earth continuity. These formulaes are driving me insane and i need more things to look at. Il ask my tutor too but u lot know a bit so thought id see hehe. Im thinking bout dying my hair see if this helps that or the electric cable rnd the neck. Hehe no really just some things i can look at and try work out in my pretty little head coz its alright learning but iv got no one to show me at min and i need to be pro active. Ok rant over. BE NICE AND SIMPLE BASIC VIRGIN ALERT thanks. Obv im working too so il be checking and looking when can if ppl reply

thanks

Sar x
 
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shanky887614 said:
Just because we never use it doesn't mean we should neglect to mention it as sarz will probably be asked to use it in her exams.


This formulae is more often used as

R1+R2=zs-ze

Because we are not always allowed to power something down and you are allowed to calc some values for test sheets, not ideal but its better than nothing
Click to expand...

If you can't power down, how are you measuring R1 + R2?
 
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shanky887614 said:
Just because we never use it doesn't mean we should neglect to mention it as sarz will probably be asked to use it in her exams.


This formulae is more often used as

R1+R2=zs-ze

Because we are not always allowed to power something down and you are allowed to calc some values for test sheets, not ideal but its better than nothing
Click to expand...
OK...so if condition reporting...would you need to power down to prove earth continuity (one of the outcomes of (R1 R2)?
 
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Even if you use long lead method (R2) to calculate cpc, you still have to 'power down' to determine R1 and Ze - you may as well just invent a figure for Zs, jot it in the form and be on your way lol
 
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Hawkmoon said:
Even if you use long lead method (R2) to calculate cpc, you still have to 'power down' to determine R1 and Ze - you may as well just invent a figure for Zs, jot it in the form and be on your way lol
Click to expand...
well....it was actually for that shanky article to work out....

however R2 is adequate for condition reporting...together with Zs...so by means of a breakout box/prods as required...you wouldn`t need to power down...would you....i just wanted to see if he could work it out...

you would need to power down for your end to ends (ring) and IR as usual but....using this method you cause minimum disruption ...
 
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GLENNSPARK said:
well....it was actually for that shanky article to work out....

however R2 is adequate for condition reporting...together with Zs...so by means of a breakout box/prods as required...you wouldn`t need to power down...would you....i just wanted to see if he could work it out...

you would need to power down for your end to ends (ring) and IR as usual but....using this method you cause minimum disruption ...
Click to expand...

...and for Ze
 
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GLENNSPARK said:
well...if you cant power down then UV is OK for condition reporting...

in other words you report/note/record what you were able to see/measure....
Click to expand...

yep lims agreed

Come to think of it I could phone the customer and get him to run round with a tape measure (I know the resistance of cables per meter), then I could fill in the EICR from my comfy armchair at home while watching Columbo!
 
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Hawkmoon said:
.... you still have to 'power down' to determine R1 and Ze .....
Click to expand...

You can get a Ze value by "enquiry" to fulfil the EICR requirement! But then it also wants you to prove (tick) that you have "connection/continuity" of the earthing conductor (and bonding conductors) ..... and as we know you can do that live! Or have I missed a trick/technique somewhere?
 
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Hawkmoon said:
yep lims agreed

Come to think of it I could phone the customer and get him to run round with a tape measure (I know the resistance of cables per meter), then I could fill in the EICR from my comfy armchair at home while watching Columbo!
Click to expand...
well you could do....but then you`d be missing the all important inspections wouldn`t you...
 
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Badged01 said:
You can get a Ze value by "enquiry" to fulfil the EICR requirement! But then it also wants you to prove (tick) that you have "connection/continuity" of the earthing conductor (and bonding conductors) ..... and as we know you can do that live! Or have I missed a trick/technique somewhere?
Click to expand...

If it's TT then Ze by enquiry will probably be a value of 'how the ferk should I know!
 
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