The Triton Knoll Electrical System Order 2016

Detailed design onshore

5.—(1) The IEC enabling works and the substation enabling works must not be commenced until details of the ground-raising and stoned site platform have been submitted to and approved by the relevant planning authority.

(2) No part of Work No. 9A may be commenced until details of the layout, scale and external appearance of the above-ground infrastructure including permanent fencing relating to Work No. 9A have been submitted to and approved by the relevant planning authority.

(3) No part of Work No. 50A may be commenced until—

(a) details of the layout, scale and external appearance of the above-ground infrastructure including permanent fencing relating to Work No. 50A have been submitted to and approved by the relevant planning authority; and

(b) the undertaker has notified the relevant planning authority whether AIS or GIS is to be installed for Work No. 50A.

(4) Any details provided by the undertaker under paragraphs (2) and (3) must, where relevant to that stage, be in accordance with the design principles document.

(5) Finished floor levels for Work Nos. 9A and 50A must, after consultation with the Environment Agency, be based on the results of topographic surveys.

(6) In relation to Work No. 3A—

(a) the total area in which the landfall transition joint bays may be contained must not exceed 20,288 square metres;

(b) the total area of land raising must not exceed 5,000 square metres; and

(c) the total number of landfall transition joint bays must not exceed 6.

(7) In relation to Work No. 9A—

(a) the highest part of any building must not exceed 16.54 metres AOD;

(b) the highest part of any external electrical equipment, excluding lightning rods, must not exceed 14.04 metres AOD;

(c) the total number of lightning rods within the fenced compound must not exceed 4 and the height of any lightning rod must not exceed 21.54 metres AOD;

(d) the total area of the fenced compound (excluding its accesses) must not exceed 17,000 square metres; and

(e) any GIS building may be located only within the dotted area shown within Work No. 9A on the works plans.

(8) In relation to Work No. 50A—

(a) if AIS is installed—

(i) the highest part of any building must not exceed 10 metres AOD;

(ii) the highest part of any external electrical equipment, excluding lightning rods, must not exceed 15 metres AOD; and

(iii) the total area of the fenced compound (excluding its accesses) must not exceed 86,000 square metres;

(b) if GIS is installed—

(i) the highest part of any building must not exceed 16 metres AOD;

(ii) the highest part of any external electrical equipment, excluding lightning rods, must not exceed 13.5 metres AOD; and

(iii) the total area of the fenced compound (excluding its accesses) must not exceed 69,000 square metres; and

(c) the total number of lightning rods within the fenced compound must not exceed 22 and the height of any lightning rod must not exceed 21 metres AOD.

(9) In relation to Work No. 54—

(a) the total number of connection bays must not exceed 2;

(b) the connection bays may be located only within the hatched areas shown within Work Nos. 54A and 54B on the works plans; and

(c) if 2 connection bays are accommodated within Work No. 54A, Work Nos. 54B and 55 must not be constructed.

(10) Unless otherwise agreed by the relevant planning authority, after consultation with the relevant drainage boards, the Environment Agency and the highways authority, where identified in the crossings schedule for the purpose of passing under a relevant obstruction, trenchless techniques must be used to install the cable ducts and electrical circuits within Work Nos. 2, 3, 5, 8, 11, 14, 17, 19, 21, 22, 24, 26, 29, 31, 33, 37, 39, 42, 44 and 46.

(11) The undertaker must—

(a) at least 3 months before the commencement of the onshore cable works—

(i) submit to the relevant planning authority a cable route sequencing plan including details of the indicative sequencing of the onshore cable works; and

(ii) notify the public and owners of land of the sequencing of the onshore cable works in accordance with the communications plan approved as part of the code of construction practice;

(b) before construction of any stage of the onshore cable works, submit to the relevant planning authority a copy of the cable installation plans provided to owners in accordance with the soil management plan approved as part of the code of construction practice; and

(c) within 3 months of the completion of the installation of the cable circuits for any stage of the onshore cable works, submit to the relevant planning authority as built plans for that stage showing the alignment of the cable circuits.

(12) Any plans submitted in accordance with paragraph (11)(a) and (b) may be updated from time to time and must be submitted to the relevant planning authority and communicated to owners and the public in accordance with the code of construction practice.

(13) In this Requirement, “onshore cable works” means Work Nos. 3, 5, 8, 11, 14, 17, 19, 21, 22, 24, 26, 29, 31, 33, 37, 39, 42, 44, 46 and 52.