91.—(1) The undertaker, in the case of the powers conferred by article 19 (protective work to buildings), must exercise those powers so as not to obstruct or render less convenient the access to any apparatus without the written consent of SSE and, if by reason of the exercise of those powers any damage to any apparatus (other than apparatus the repair of which is not reasonably necessary in view of its intended removal or abandonment) or property of SSE or any interruption in the distribution of electricity by SSE, as the case may be, is caused, the undertaker must bear and pay on demand the cost reasonably incurred by SSE in making good such damage or restoring the supply; and, subject to sub-paragraph (2), must—
(a)pay compensation to SSE for any loss sustained by it by reason or in consequence of any such damage or interruption; and
(b)indemnify SSE against all claims, demands, proceedings, costs, damages and expenses which may be made or taken against or recovered from or incurred by SSE, by reason of any such damage or interruption.
(2) Nothing in this paragraph imposes any liability on the undertaker with respect to any damage or interruption to the extent that such damage or interruption is attributable to the act, neglect or default of SSE or its contractors or workmen.
(3) SSE will give to the undertaker reasonable notice of any claim or demand as aforesaid and no settlement or compromise thereof is to be made by SSE, save in respect of any payment required under a statutory compensation scheme, without first consulting the undertaker and giving the undertaker an opportunity to make representations as to the claim or demand.