(1) Subject to this Act, a person shall be entitled to disability benefit in respect of any day of incapacity for work (in this Act referred to as "a day of incapacity for work") which forms part of a period of interruption of employment, if -
(a) he is under pensionable age on the day for which the benefit is claimed, and
(b) he satisfies the contribution conditions in section 32.
(2) A person shall not be entitled to disability benefit for the first 3 days of any period of incapacity for work.
(3) For the purposes of any provision of this Act relating to disability benefit -
(a) a day shall not be treated in relation to an insured person as a day of incapacity for work unless on that day he is incapable of work,
(b) "day of interruption of employment" means a day which is a day of incapacity for work or of unemployment,
(c) any 3 days of interruption of employment, whether consecutive or not, within a period of 6 consecutive days shall be treated as a period of interruption of e