I am trying to get clear advice on what supplementary bonding is required in my bathroom.
My house is 30 years old and I have just renewed the bathroom suite and added an electric shower.
Originally the electrics in the bathroom consisted of a ceiling light and a wall fan heater. There was no supplementary bonding, only the copper water pipes bonded to earth near the consumer unit.
Now I wish to add correct supplementary bonding to make the installation safe and legal but appear to get conflicting advice.
This link appears to show the bonding only to the metal pipes
http://www.iee.org/Publish/WireRegs/EarthingPlasticPipes.pdf
While this link shows all the bonding connected via a seperate earth cable.
http://www.diydoctor.org.uk/projects/bondingbathroom.htm
which is correct?
The first iee link also says the earth bonding should be made to the earth of protective conductors of class 1 and class 2 equipment within the bathroom and NOT run back to the main earth.
Whereas one electrician I asked recommended running the earth cable back to the main earth near the CU.
Again which is correct? Is connecting all the supplementary bonding back to the earth connection in the shower unit sufficient?
I presume I should also find a way of connecting the fan heater earth to this supplementary bonding ciurcuit and pipes although it is on a wall on the opposite side of the room.
My house is 30 years old and I have just renewed the bathroom suite and added an electric shower.
Originally the electrics in the bathroom consisted of a ceiling light and a wall fan heater. There was no supplementary bonding, only the copper water pipes bonded to earth near the consumer unit.
Now I wish to add correct supplementary bonding to make the installation safe and legal but appear to get conflicting advice.
This link appears to show the bonding only to the metal pipes
http://www.iee.org/Publish/WireRegs/EarthingPlasticPipes.pdf
While this link shows all the bonding connected via a seperate earth cable.
http://www.diydoctor.org.uk/projects/bondingbathroom.htm
which is correct?
The first iee link also says the earth bonding should be made to the earth of protective conductors of class 1 and class 2 equipment within the bathroom and NOT run back to the main earth.
Whereas one electrician I asked recommended running the earth cable back to the main earth near the CU.
Again which is correct? Is connecting all the supplementary bonding back to the earth connection in the shower unit sufficient?
I presume I should also find a way of connecting the fan heater earth to this supplementary bonding ciurcuit and pipes although it is on a wall on the opposite side of the room.