6 Existing Supply Arrangements – Modifications and Additions 6.1 Ownership In general, UK Power Networks are unlikely to own risers and laterals in any properties other than purpose-built non-council flats (where there is no other managing body). This means that UK Power Networks will not be responsible for risers and laterals within properties such as houses, properties converted into flats and maisonettes, including those with commercial premises below and a domestic flat above. Historically, the building developer or owner would have paid their own electricians or the contracting branch of the regional electricity company or DNO, to install risers and laterals in a multi-occupancy premise. The regional electricity company or DNO would have then inspected the installation and made the final connections. This does not confirm, or imply, ownership, and in most cases, the DNO is not actually responsible for the internal wiring in any premises. As of 1st June 2013, UK Power Networks shall not own risers and laterals emanating from the intake position into the fabric of the building and shall not adopt those installed by others. Rising and lateral mains and services associated with new supplies shall not be adopted by UK Power Networks. This applies to all three DNO licensees and the IDNO licensee. If the installation beyond the main intake cut-out bears the name or logo of a pre-1947 electricity company, then UK Power Networks are responsible, unless it has been adopted by others since that time. There may be exceptions, where UK Power Networks would be the custodians if the following conditions are met:  In SPN, only riser and lateral systems that are of an adoptable standard, or would have been at the time of construction, if the installation occurred prior to 1st June 2013.  In EPN, only riser and lateral systems that are of an adoptable standard, or would have been at the time of construction, and installed post 1972 and before 1st June 2013. Indications of pre-1972 properties will include the existence of metal-clad cut-outs or VIR cables.  In LPN, riser and lateral systems are not owned by UK Power Networks and consequently are not included within the inspection programme. Note: There are a number of installations in LPN where UK Power Networks has historically received a payment in respect of the ongoing inspection, but not replacement of customer owned risers and laterals. These installations are recorded in the asset register.

6 Existing Supply Arrangements – Modifications and Additions 6.1 Ownership In general, UK Power Networks are unlikely to own risers and laterals in any properties other than purpose-built non-council flats (where there is no other managing body). This means that UK Power Networks will not be responsible for risers and laterals within properties such as houses, properties converted into flats and maisonettes, including those with commercial premises below and a domestic flat above. Historically, the building developer or owner would have paid their own electricians or the contracting branch of the regional electricity company or DNO, to install risers and laterals in a multi-occupancy premise. The regional electricity company or DNO would have then inspected the installation and made the final connections. This does not confirm, or imply, ownership, and in most cases, the DNO is not actually responsible for the internal wiring in any premises. As of 1st June 2013, UK Power Networks shall not own risers and laterals emanating from the intake position into the fabric of the building and shall not adopt those installed by others. Rising and lateral mains and services associated with new supplies shall not be adopted by UK Power Networks. This applies to all three DNO licensees and the IDNO licensee. If the installation beyond the main intake cut-out bears the name or logo of a pre-1947 electricity company, then UK Power Networks are responsible, unless it has been adopted by others since that time. There may be exceptions, where UK Power Networks would be the custodians if the following conditions are met:  In SPN, only riser and lateral systems that are of an adoptable standard, or would have been at the time of construction, if the installation occurred prior to 1st June 2013.  In EPN, only riser and lateral systems that are of an adoptable standard, or would have been at the time of construction, and installed post 1972 and before 1st June 2013. Indications of pre-1972 properties will include the existence of metal-clad cut-outs or VIR cables.  In LPN, riser and lateral systems are not owned by UK Power Networks and consequently are not included within the inspection programme. Note: There are a number of installations in LPN where UK Power Networks has historically received a payment in respect of the ongoing inspection, but not replacement of customer owned risers and laterals. These installations are recorded in the asset register.