Meter tails

[Jason2]

Hi. Could some one explain some thing to me plz. Ok I've just noticed in the house we have moved into the neutral tails from the cut out into the meter are the wrong way around going into the meter. The two live tails are ok but the neutrals are not. Is this a problem or not .

Jason.

 

[westie101]

Will make no difference as the neutral current is not used for load measurement

 

[Lectrician]

The neutral terminals are just a solid block in the meter, simply giving the meter a neutral reference for voltage measurement.

It wont matter if the neutrals are incorrect, but it would the lives.

They should be the correct way around really though.

 

[Jason2]

Thank you for that. It was playing on my mind ever since a seen it, and with young children or any one really , you can never be to careful .

Thank you again.

 

[Spark123]

What would be the effect of reversing the lives?

 

[kai]

It might make the meter run backwards, if it were the old dial type with a spinning disk, but the modern types have an anti run-back device that locks the meter against any backward running.

 

[Adam_151]

One particular make of digital meter will display "Red" ... reverse energey detected

 

[Spark123]

Yep, happens when someone is feeding the grid with their windmill or sunlight thing.
Was thinking that the old disc type meters are in essence an AC motor which works from current (and voltage to give Wh), reversing the lives on an AC motor doesn't make it spin backwards so just curious to know what will happen on a meter?

 

[Adam_151]

It spins backwards unless its got a stop. Sometimes happens with solar PV until the DNO receive the commisioning forms and schedule in a meter swap

 

[Lectrician]

Yep, happens when someone is feeding the grid with their windmill or sunlight thing.

If you generate enough, and want to export, you need an import/export meter. It records what goes in AND what goes out.

 

[dinopower]

It wouldnt be the dno doing a meter swap, it would be the suppliers or there agents

 

[Iggifer]

What would be the effect of reversing the lives?

and a MOP would get the sack!