Discuss Recommendation needed - Electrician/engineer to help with Network Operator problem - Lincolnshire in the UK Electrical Forum area at ElectriciansForums.net
Hi, I need some help to challenge the local network operator who i believe is trying to force me to install a new cable unnecessarily
We have an existing three-phase supply into a building and 3 meters connected to it. However these meters supply 5 services (4 x flats and 1 x landlord supply) so we requested the supplier to install a Bemco or similar unit and provide two additional circuits and two MPAN's so we can have each of the 5 services metered separately. Their solution is to replace the current 3 phase cable coming into the building with a larger one-although three electricians have confirmed the current cable is more than adequate for the user requirements and has been serving the building for 20 years plus. The operator has come up with numerous reasons why they cannot split this existing supply or use the existing cable and contradicted them selves which I have evidence of. I therefore suspect that their objective is to upgrade their network cable at my expense.Can you give a bit more information. It sounds bit odd.
I have worked for a couple of DNOs, not actually in the lv connection area, but am generally aware of the rules/guidelines and so on.We have an existing three-phase supply into a building and 3 meters connected to it. However these meters supply 5 services (4 x flats and 1 x landlord supply) so we requested the supplier to install a Bemco or similar unit and provide two additional circuits and two MPAN's so we can have each of the 5 services metered separately. Their solution is to replace the current 3 phase cable coming into the building with a larger one-although three electricians have confirmed the current cable is more than adequate for the user requirements and has been serving the building for 20 years plus. The operator has come up with numerous reasons why they cannot split this existing supply or use the existing cable and contradicted them selves which I have evidence of. I therefore suspect that their objective is to upgrade their network cable at my expense.
Hi Julie, appreciate your comments on this. Is there a way I can private message you about this as I don't really want this discussion to continue in the public forum?I should have added more Re multi-occupancy buildings.
Basically there are two systems applicable to you A1 and A2 , A1 is basically separate service cables to each meter and is where each occupant is separate (including water and gas supplies if metallic).
A2 is where you provide a metering room in a single building, in this case there are a couple of flavours - small and general, the general has large 95mm^2 ++ service cable, whilst the small (up to 3 or 4) has a minimum of 35mm^2
These are detailed in ENA EA G87 (attached)
All DNO have to adhere to these
so if your existing supply is 25mm^2 (or less in older installations) you could not use this for A2, if you have shared metallic water/gas you cannot use A1.
Hence you may have a number of reasons which appear contradictory - but that's likely due to the two arrangements possible.
I suspect they are stating the service cable size has to be increased to enable an A2 option.
Hi Julie, appreciate your comments on this. Is there a way I can private message you about this as I don't really want this discussion to continue in the public forum?
Yes just pm meHi Julie, appreciate your comments on this. Is there a way I can private message you about this as I don't really want this discussion to continue in the public forum?
If you click on a person's name in the boxes above you should get "Start Conversation" to discuss in a more private manner.Hi Julie, appreciate your comments on this. Is there a way I can private message you about this as I don't really want this discussion to continue in the public forum?
Reply to Recommendation needed - Electrician/engineer to help with Network Operator problem - Lincolnshire in the UK Electrical Forum area at ElectriciansForums.net
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