Interested in Language
The repair is scheduled to take about 14 days.
I think that "The planned time of repair is about 14 days" (the original sentence) means the same as "The repair is scheduled to take about 14 days".
I would expect something like "2pm" after "The planned time of [the] repair is ...". If you want to use "14 days", say "The planned/expected duration of the repair is ...".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.