Whilst your quotation for acceleration will take account of the impact of it on your works and programme, from a commercial point of view it’s treated separately, like a compensation event. If the PM accepts the Contractor’s quotation it is in effect added to the Activity Schedule, then if any of the circumstances at clause 54.2 occur you would be able to submit a revised Activity Schedule to the PM for acceptance.
When preparing your quotation be mindful that if you provide a single lump sum Price for acceleration it will only be paid when you have completed the acceleration. You may therefore want to break the quotation down into a number of lump sum Prices so that you can recover the cost of accelerating in-line with your expenditure on the same.