supply electricity for any purpose directly to any licensee for use in any part of the area of supply of a bulk-licensee without the consent of the bulk-licensee, unless the licensee to be supplied has an absolute right of veto on any right of the bulk-licensee to supply electricity for such purpose in the said part of such area, or unless the bulk-licensee is unable or unwilling to supply electricity for such purpose in the said part of such area on reasonable terms and conditions and within a reasonable time; or
the actual effective capacity of the licensee's generating station computed in accordance with paragraph IX of the First Schedule at the time when such supply was required was less than twice the maximum demand asked for by any such person; or
the maximum demand of the licensee, being a distributing licensee and taking a supply of energy in bulk is, at the time of the request, less than twice the maximum demand asked for by any such person; or
the licensee is unable or unwilling to supply electricity for such purpose in the said part of such area on reasonable terms and conditions and within a reasonable time.
(2)
After the Board has declared its intention to supply electricity for any purpose in any area, for which purpose and in which area it is under this section competent to supply electricity, no licensee shall, the provisions of his license notwithstanding, at any time be entitled without the consent of the Board to supply electricity for that purpose in that area.
(3)
For the purposes of sub-section (1) "absolute right of veto " means an unqualified right vested in a licensee by virtue of any law, license or other instrument whereby a bulk-licensee is prevented from supplying electricity in any specified area without the consent of the licensee in whom the right of veto vests.
(4)
If any question arises under sub-section (1) as to the reasonableness of the terms or conditions or time therein mentioned, it shall be determined [by arbitration] as provided in section 76.