(2) In relation to works which will or may be situated on, over, under or within—  the plan to be submitted to National Grid under sub-paragraph (1) must include a method  statement and describe—  (3) In relation to any works which will or may be situated on, over, under or within ten metres of  any part of the foundations of an electricity tower or between any two or more electricity towers,  the plan to be submitted under sub-paragraph (1) must, in addition to the matters set out in sub- paragraph (2), include a method statement describing—  (4) The undertaker must not commence any works to which sub-paragraph (2) or (3) apply until  National Grid has given written approval of the plan so submitted.  (5) Any approval of National Grid required under sub-paragraph (2) or (3)—  (6) In relation to any work to which sub-paragraph (2) or (3) apply, National Grid may require  such modifications to be made to the plans as may be reasonably necessary for the purpose of  securing its apparatus against interference or risk of damage or for the purpose of providing or  securing proper and convenient means of access to any apparatus.  (7) Works to which this paragraph applies must only be executed in accordance with the plan,  submitted under sub-paragraph (1) or as relevant sub-paragraph (5), as approved or as amended  from time to time by agreement between the undertaker and National Grid and in accordance with  such reasonable requirements as may be made in accordance with sub-paragraph (6) or (8) by  National Grid for the alteration or otherwise for the protection of the apparatus, or for securing  access to it, and National Grid will be entitled to watch and inspect the execution of those works.  97 (a) may be given subject to reasonable conditions for any purpose mentioned in sub- paragraph (6) or (8); and,  (b) must not be unreasonably withheld.  (a) details of any cable trench design including route, dimensions, clearance to pylon  foundations;  (b) demonstration that pylon foundations will not be affected prior to, during and post  construction;  (c) details of load bearing capacities of trenches;  (d) details of cable installation methodology including access arrangements, jointing bays  and backfill methodology;  (e) a written management plan for high voltage hazard during construction and ongoing  maintenance of the cable route;  (f) written details of the operations and maintenance regime for the cable, including  frequency and method of access;  (g) assessment of earth rise potential if reasonably required by National Grid’s engineers;  (h) evidence that trench bearing capacity is to be designed to 26 tonnes to take the weight of  overhead line construction traffic.  (a) 15 metres measured in any direction of any apparatus; or  (b) involve embankment works within 15 metres of any apparatus,  (a) the exact position of the works;  (b) the level at which these are proposed to be constructed or renewed;  (c) the manner of their construction or renewal including details of excavation, positioning of  plant;  (d) the position of all apparatus;  (e) by way of detailed drawings, every alteration proposed to be made to or close to any such  apparatus;  (f) any intended maintenance regimes; and  (g) an assessment of risks of rise of earth issues. 