Notwithstanding the conditions, provisions and other endorsements of the policy, it is understood and agreed that the following special conditions shall apply:
The insurers shall not be liable under the policy to indemnify loss of or damage to existing underground cables or pipes of any kind (electric cables, telephone cables, water and gas pipes, sewers and other pipelines, etc.) unless prior to the commencement of works the Insured had requested and obtained from the public authorities or the owners of such an underground system the exact position of all cables or pipes the Insured had traced their existence and indicated location
The indemnity shall in any case be restricted to the repair costs of such cables or pipes. Any consequential damage shall be excluded from the policy cover.