57v earth to neutral. yikes

[Lee321]

dam where did that come from.

i told you i know what a neon is

the voltages are what i got the testers are good i couldn't got those voltages if all was in order

its why i started the thread, there are voltages that are not the norm!

 

[steptoe]

you could if you dont know how to test correctly,

putting it bluntly,

you dont even know if you are testing lives or lines.

so how do I know you are even using a tester and not just your 'trusty' volt stick.

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i told you i know what a neon is

TBH I find that very hard to believe

 

[Lee321]

what voltstick gives voltages. dam get with the old school will ya you call a connector block a choc block but i'd know what you meant

---------- Post Auto-Merged at 01:53 ---------- Previous post was made at 01:51 ----------

TBH I find that very hard to believe

i do like the leg pull but it wears thin after a bit not sure your still trying?????

 

[steptoe]

Lee,

in all honesty Im struggling to get to an understanding as to what you do actually understand,

a choc block and a connecter block to me are two different things,

I suppose you would call a dog cock a wago too would you?

Im sorry here,

but Im just getting frustrated as to what you actually mean cos you keep saying something different every time you post.

 

[Lee321]

it did go off on a tangent.

i respect you as an electrician if you say you are no sceptism

not sure why you so sceptical

it would seem there are some geographical or trade name use differences between us

6mm pin and nut is a roofing bolt/nut, a penny washer is a larger washer with respect to its hole size.

twin and skin = twin and earth and so on.

i could dismiss you as a electrician for not knowing what a tong tester is but its just we call things all different but i would just understand its regional and or backk ground say industrial and domestic some industrial sparks wouldn't know what a crampet is while some domestic wont know what a red head is but they are both sparks.

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i do feel your being pedantic? about me saying tested between live and earth and your saying line etc i dont understand your approach

 

[steptoe]

live Vs line,

thats a regs thing, not a local saying,

live-phase-line

live is now [and for all of 17th] neutral and line

phase is no longer recognised for a single phase supply either AFAIAA

TBH, I learnt that way back when.

as for localisms, I try steer away from them as I have quite a few from quite a few localities.

 

[Lee321]

it will always be live,neutral and earth for me, harder to let go than red,yellow,blue was. sorry

 

[steptoe]

ok, so you still want to be backward,

like most of the half baked folks that think they are sparks, how about red white and blue then?

we changed from that without any major issues for you, it seems,

times change, and BTW it was phase at that time, NOT live.!

still doesnt change the fact you dont know how to test,

may i suggest the rest of your posts go in the learning zone, cos its pretty obvious you still are a basic sort of person,

come back play/argue with me when you actiually can!

 

[Lee321]

hey hey no play or arguing about any of it why would you feel it was.

you are still learning :C i would hope:coffee

you still ask for a 3phase isolator when you go to the wholesalers or do you pull everyone up who does and all the manufacturers that still list them as that?

hmmmmmmmmm

http://www.talk.electricianforum.co.uk/student-learning-zone-c-g-2330-levels-2-3-c-g-2381-c-g-2391-other-co/14842-cable-size-3phase.html

actually that didn't feel good looking to see if you call things something you say they have been changed in the regs and should no longer be referred to as.

there maybe some aspect your not sure/competent with I or the forum can help you with in future without you getting chastised for it

 

[ProDave]

The only way to solve this is go back to basics.

Take all your testers next time.

Go at a time you can turn off ALL the db's in the property. Then measure what you get N-E. If you are still getting 57V with all db's off, it can't be a circuit fault in that property, it must be external, and the next step would be to phone the DNO

If N-E is okay with all db's off, then turn on one DB at a time and energise 1 circuit at a time, checking n-e as you energise each circuit until you find the faulty circuit.

If you need an independent reference point, try putting another temporary earth stake in, just as a reference point for your meter and not connected anywhere else.

 

[Lee321]

canoe if earthed to ground or connected to neutral at the sametime then you'd perhaps feel it.

dave yes all was isolated (edit: went back after midnight)

 

[ProDave]

[quote name='Lee

 

[Lee321]

been back dave after midnight

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it's an external fault and you need to contact the DNO. A neighbouring property probably has a L-E fault.This still probably means you have your own N-E fault in the DB that's tripping so that needs investigating as well.

yep agree

although the other rcd's would not hold once i'd opened them and tried to re close. eventually they did though.

the tripping db was clear neutral to earth (main switch isolated)

 

[Manator]

As most of the replies were made in the early hours I will forgot all the little arguments.

Lee the information you have supplied is very limited to be honest, and in defence of Steptoe and others who may like to answer it is best if the correct terminology is used, though I like you still do not adhere to this all the time (habits like you say die hard). The T5 tester should give you some good information, but it would be better to have a good range of testers/ or multi to get to the bottom of this. You appear to have another problem besides the 57v N-E, 300v for a 3Ph DB is on the low side, and if its a single phase board a little high. What size/type of cable supplies this board, you will still have a reference point on an isolated board if the cables supplying the power are still energised. If not like Prodave says make your own reference point and test from that known quantity. It will take a lot more information before anyone can give you a good answer, remember we have not seen the site, and have no idea of the general feel for the place.

 

[kme]

Ok. My twoppenceworth:

Firstly: The voltage tester I have (which happens to be a Di-log) CAN tell me which probe is "live" with respect to the other. That is all I`m going to say about that.

If I have this right; you have 57v between neutral and earth, but don`t yet know which one has the voltage, with respect to the other?

You also have 300v between the earth and one of the phases? What do you have between earth and the other phases?

In fact....What voltages do you have between everything? Both with the main switch open AND with all loads connected? That`ll help.

KME

 

[Lee321]

will update when i can K.

 

[Phoenix]

how can you possibly have 300v LINE to Earth.?

It is possible to measure an L-E exceeding the L-N voltage where you are connected to a transformer with TT supplies if one of these is in a fault condition and the tx earth extrode has quite a high Ra (normally only found where the tx *only* supplies TT systems) , if a a L-E fault in another property is dragging the voltage on earth (via the voltage drop experenced across the transformer end earth rod upto towards the live

So in a proerty on the same phase as the the fault, you might see (or in the proerty with the fault, if you put a screwdriver in the far and of the lawn as a test rod)

N-E = 57v

L-N = 240v

L-E = 183v

In the proerty with the fault, you might see:

N-E = 239V

N-L = 240V

L-E = 1v

And all the worms comming out of the ground near the earth rod

In a property on another phase, you would see:

N-E = 57V

L-N = 240V

L-E = 276v (providing my maths is right!)

Not sure where the 300v has come from, its possible that when the 300v reading was obtained, something has changed and the N-E was then greater than 57V

 

[Bacon]

DI-LOG DL-6780

CombiVolt

 

[AcombAndy]

Regarding the debate over probes indicating AC polarity, perhaps they do something like this;

 

[ProDave]

Regarding the debate over probes indicating AC polarity, perhaps they do something like this;

Don't forget ac is alternating, so it's not that simple.

It's probably like a volt stick, it generates it's own reference (capacitively coupled to your hand?) and determines from that which one is "live"

Think of it as having two volt sticks inside the meter, one connected to each probe. The one that lights up is the live terminal.