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You are here: Home / Our Services / Building Network Operator

Building Network Operator

What you need to know about BNOs

What is a BNO?

A Building Network Operator (BNO) is the organisation that owns the electrical distribution installation in a multiple occupancy building. They are responsible for the infrastructure within the electrical distribution network between the Distribution Network Operator’s (DNO’s) intake/service head, and the consumer units or distribution boards. The point of demarcation is the service head as shown below.

Source: UK Power Networks

A BNO can be the landlord, building owner, developer, building management company or those in a similar position. It is important that tenants/occupants are aware who their BNO is and what they are responsible for. Additionally it is equally important that BNO’s identify themselves and are aware of their role in electrical installation and safety.

A multiple occupancy building is any building/property that is split into or subdivided into more than one demise. These can be:

  • Residential buildings e.g. block of flats (including conversions)
  • Mixed use buildings e.g. small commercial on lower floors with residential units above
  • Sub-divided commercial properties

However, it is important to note that in all scenarios, the BNO’s responsibility includes any landlord or communal areas.

Who is responsible for the installation?

The Distribution Network Operator (DNO e.g. UK Power Networks or Scottish and Southern Electricity Networks) is responsible for the intake (service head) and all equipment leading up to this. The means that the Building Network Operator is responsible for the design, install and ongoing maintenance of all equipment after the intake and up to the consumer units or distribution boards.

The Building Network Operator’s installation has to be designed, installed and maintained in accordance with the latest BS 7671 standards (BS 7671: Requirements for Electrical Installations, the IET Wiring Regulations). This means that the BNO installation and infrastructure should be included within the 5-yearly periodical inspection.

How can BSE|FM help?

BSE|FM can assist Building Network Operators in ensuring that their electrical installations comply with the latest BS 7671 regulations. Our knowledgeable team can visit your property to review the current installation and advise on next steps where required.

Our experienced and qualified electricians can also support BNO’s by carrying out your ongoing periodic test and inspection and provide you with the correct certification, along with assisting you with any maintenance and upgrades of existing BNO installations.

Contact Us Today
London: +44 207 953 4047
Sussex: +44 1444 390 593
Contact Us Today
London: +44 207 953 4047
Sussex: +44 1444 390 593

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We provide a complete building services installation, service and maintenance solution to businesses across many market sectors.

London Head Office:
BSE FM Ltd, First Floor, Magnesia House, 6 Playhouse Yard, London EC4V 5EX
Tel No: 0207 953 4047

Sussex Office:
BSE FM Ltd, Burrell Road, Haywards Heath, West Sussex, RH16 1TL
Tel No: 01444 390 593
Email: mail@bsefm.com

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