(1)For the purposes of section 143 an employee complies with the request contained in a notice of extension if, but only if, on each available day within the proposed period of extension, he—
(a)attends at his proper or usual place of work, and
(b)is ready and willing to work,
whether or not he has signified his agreement to the request in any other way.
(2)The reference in section 143(2) to the number of working days lost by striking is a reference to the number of working days in the period—
(a)beginning with the date of service of the notice of termination, and
(b)ending with the time of expiry,
which are days on which the employee in question takes part in a strike of employees of his employer.
(3)In section 143 and this section—
“available day”, in relation to an employee, means a working day beginning at or after the time of expiry which is a day on which he is not taking part in a strike of employees of the employer,
“available day within the proposed period of extension” means an available day which begins before the end of the proposed period of extension,
“time of expiry”, in relation to a notice of termination, means the time at which the notice would expire apart from section 143, and
“working day”, in relation to an employee, means a day on which, in accordance with his contract of employment, he is normally required to work.
(4)Neither the service of a notice of extension nor any extension by virtue of section 143(7) of the period specified in a notice of termination affects—
(a)any right either of the employer or of the employee to terminate the contract of employment (whether before, at or after the time of expiry) by a further notice or without notice, or
(b)the operation of this Part in relation to any such termination of the contract of employment.