GOP 17 Generic Task Risk Assessment HV Switching - Overhead Definitions UK Networks The electricity network owned by UK Power Networks and normally network operated by UK Power Networks authorised personnel Customers An HV electricity network not owned by a Distribution Network Network Operator (DNO) and receives an HV supply from a DNO A document defining the ownership of equipment and apparatus at Site Responsibility the boundary between a DNO and other networks. It also specifies Schedule which party is responsible for controlling & operating switchgear, maintenance and issuing documents Operation & A contractual agreement in place with a customer where UK Power Maintenance Networks agrees to operate and maintain their electrical HV/LV Agreement distribution network HV Consumer A document signed by the customer which gives authority to a Apparatus nominated authorised person to carry out operations, work/and or Authority (CAA) control on consumer’s apparatus A certificate designed to provide written confirmation of isolation and/or earthing where: UK Power Networks authorised personnel request the Customer’s authorised personnel to carry out switching operations on Customer’s switchgear to isolate and/or earth equipment to be worked on; or the Customer’s authorised personnel request UK Power Networks authorised personnel to carry out switching HV Operational operations on UK Power Networks equipment or Isolation and Customer’s switchgear to isolate and/or earth Earthing (OIE) apparatus. Certificate The OIE Certificate includes sections for either to request the isolation and earthing operations and receive written confirmation of completion, before accepting the circuit. The relevant sections of the certificate must be completed and the certificate cleared and cancelled before the equipment is returned to service. The OIE Certificate is not an authority for UK Power Networks to operate the customer’s HV equipment, or vice-versa, other than to operate earth switches to facilitate testing. All other operations require a written agreement as set out in Section 8.2 of this procedure Responsibilities The ownership of any system, plant or equipment generally determines the responsibility for its control. This will normally be defined in the Site Responsibility Schedule required by the
GOP 17 Generic Task Risk Assessment HV Switching - Overhead Definitions UK Networks network The electricity network owned by UK Power Networks and normally operated by UK Power Networks authorised personnel Customers Network An HV electricity network not owned by a Distribution Network Operator (DNO) and receives an HV supply from a DNO Site Responsibility Schedule A document defining the ownership of equipment and apparatus at the boundary between a DNO and other networks. It also specifies which party is responsible for controlling & operating switchgear, maintenance and issuing documents Operation & Maintenance Agreement A contractual agreement in place with a customer where UK Power Networks agrees to operate and maintain their electrical HV/LV distribution network HV Consumer Apparatus Authority (CAA) A document signed by the customer which gives authority to a nominated authorised person to carry out operations, work/and or control on consumer’s apparatus HV Operational Isolation and Earthing (OIE) Certificate A certificate designed to provide written confirmation of isolation and/or earthing where: UK Power Networks authorised personnel request the Customer’s authorised personnel to carry out switching operations on Customer’s switchgear to isolate and/or earth equipment to be worked on; or the Customer’s authorised personnel request UK Power Networks authorised personnel to carry out switching operations on UK Power Networks equipment or Customer’s switchgear to isolate and/or earth apparatus. The OIE Certificate includes sections for either to request the isolation and earthing operations and receive written confirmation of completion, before accepting the circuit. The relevant sections of the certificate must be completed and the certificate cleared and cancelled before the equipment is returned to service. The OIE Certificate is not an authority for UK Power Networks to operate the customer’s HV equipment, or vice-versa, other than to operate earth switches to facilitate testing. All other operations require a written agreement as set out in Section 8.2 of this procedure Responsibilities The ownership of any system, plant or equipment generally determines the responsibility for its control. This will normally be defined in the Site Responsibility Schedule required by the
DSR+01+005+Work+on+Customers+HV+Systems.docx