Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Sustainable Sidetra...
DIY
Earth Bonding
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Earth Bonding

 
Page 4 / 4
DIY
Last Post by Toodles 3 years ago
38 Posts
4 Users
1 Reactions
19.6 K Views
RSS
Transparent
 Transparent
(@transparent)
Illustrious Member Moderator
Joined: 5 years ago
Posts: 3437
03/05/2023 8:41 pm  

I'm assuming that the 'change' is due to Virgin Media upgrading the network from FTTC (Fibre to the Cabinet) to FTTH (Fibre to the Home).

Copper phone wires supplying a home do have an earth reference point at the cabinet. That's the 1-metre high box along the street somewhere. But that earth isn't to provide safety for end users if you send mains 240v or a lightning strike down the wires! The copper is too thin to take that sort of current.

The earth reference acts to protect the equipment owned by OpenReach or whoever your supplier is.

Once the cable to the house is upgraded to fibre optic, it can no longer have any earth reference.
Your link now uses photons, not electrons!

Nor can it provide the 80v across the pair of copper wires which produces the 'ring tone'.

So two things have to be changed in the home.

1: Your broadband router gets changed to one with a fibre-optic link to the outside world.

2: Your 'landline phone' needs to receive power from the house electricity supply.

The latter is more complex than it first appears.
The telecomms regulations require that it must be possible to make a call from the house during a power-cut.
So the new phone also has a battery which keeps it 'live'.

None of this has any bearing on the earthing for the house.

If anything, it makes the situation simpler.
In the event of a nearby lightning strike, you no longer have a copper telephone wire connecting into the home.
The only earth which concerns you will therefore be the one associated with the mains electricity supply.


Save energy... recycle electrons!


   
ReplyQuote
Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 3021
Topic starter 04/05/2023 4:54 pm  

@transparent We are awaiting a call back from Virgin on the ridiculous as we have 3 handsets that will need powering (special equipment for hearing impaired user etc.) which in turn entails occupying a 13 amp socket and trailing wires. VM point out they will not work in a power cut so we will be requesting one of their equipments that connect to the hub but provide a connection at all times to cover us for emergencies. They are not aware that we have islanding powering -with apologies, in case anyone is interested, this is the gist of the VM message: Regards, Toodles.

 

On 21 June your current home phone service will stop working and be switched over to our fibre network. We will send you an adapter in the post which you’ll need to use to connect your home phone to your WiFi Hub so you can make and receive phone calls over our fibre network.
What you need to do
Keep an eye out for the adapter. It'll come with simple step-by-step instructions to help you get it set up. You’ll need to do this on or after 21 June.
Do you have any connected devices?
In the unlikely event there’s a power cut or a fibre network disruption, you won’t be able to make or receive calls and most connected devices (such as a burglar alarm linked to a control centre, a telecare device, or other phones connected to extension sockets) will be affected.
You’ll also need to contact your device provider and let them know about the switch to make sure they’re compatible with a fibre service.
 
 
 
If you rely on your landline for accessibility needs or don’t have a mobile to make an emergency call we’ll provide you with an emergency back up line so you’re always able to call emergency services.
 
 
 
 
 
 
 
 
 

 

Toodles, heats his home with cold draughts and cooks food with magnets.


   
ReplyQuote
Page 4 / 4
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO