Paragraph 1 I1

For the protection of the utility undertakers referred to in this Part of this Schedule (save for Anglian Water which is protected by Part 3 of this Schedule, F1National Gas Transmission Plc as gas undertaker which is protected by Part 4 of this Schedule, National Grid Electricity Transmission Plc as electricity undertaker which is protected by Part 6 of this Schedule, National Grid Viking Limited which is protected by Part 10 of this Schedule, Beacon Fen Energy Park Limited which is protected by Part 11 of this Schedule, and Triton Knoll OFTO Limited which is protected by Part 12 of this Schedule) the following provisions have effect, unless otherwise agreed in writing between the undertaker and the utility undertakers concerned.