voltage reading on the nuetral

[Rockomuir]

Hello all,

Been to my local campsite to fit a hairdryer in the toilet blocks. Before starting works i ran through a few basic checks as the installation is prettry old. I checked the voltage at the main switch at the board. I got a reading of 216v phase and 10v on the neutral. Has anyone got any suggesstions as to why i would have 10v on the neutral. The supply for the toilet block is a long run from the cutout so i am expecting so volt drop.

 

[Farmelectrics]

Induced voltage possibly

 

[Moses]

Hello all,

Been to my local campsite to fit a hairdryer in the toilet blocks. Before starting works i ran through a few basic checks as the installation is prettry old. I checked the voltage at the main switch at the board. I got a reading of 216v phase and 10v on the neutral. Has anyone got any suggesstions as to why i would have 10v on the neutral. The supply for the toilet block is a long run from the cutout so i am expecting so volt drop.

Load current in the N-wire produces voltdrop.
But 10V is on the high side.

 

[Rockomuir]

Would this stop me from performing an rcd test and struggle to get a zs reading. What realistically could i do to improve this ?

 

[Jimmy Boy]

Hello all,

Been to my local campsite to fit a hairdryer in the toilet blocks. Before starting works i ran through a few basic checks as the installation is prettry old. I checked the voltage at the main switch at the board. I got a reading of 216v phase and 10v on the neutral. Has anyone got any suggesstions as to why i would have 10v on the neutral. The supply for the toilet block is a long run from the cutout so i am expecting so volt drop.

A Hair Dryer not Hand Dryer ? It's been yonks since I camped they have Hair Dryers now things have moved on

 

[Rockomuir]

50p for three minutes

 

[Jimmy Boy]

50p for three minutes

Bloody Hell lol ! I assume you will carry this out using the format of a minor electrical work certificates so as long as you comply with those requirements I doubt you have owt to worry about, your not doing a PIR !

 

[Moses]

Would this stop me from performing an rcd test and struggle to get a zs reading. What realistically could i do to improve this ?

NO. and

No. and

depends how much you want to spend?

to improve your Zs, ask the DNO to upgrade the supply and convert it to TN-C-S
Install bigger cables for your final circuit.
Install bigger cable for your earth cable.

 

[Knobhead]

As Moses has said, volt drop in the neutral can cause a voltage rise to earth.

I’ve tried to make this drawing as clear as I can.

View attachment 12794

 

[Moses]

As Moses has said, volt drop in the neutral can cause a voltage rise to earth.

I’ve tried to make this drawing as clear as I can.

View attachment 12794

Tony is that the same DWG as the other day?????

You couldn't have done an other one?????