In an interview, Mrs Phiri said politicians should desist from putting undue influence on autonomous institutions such as the ECZ.
She said the controversial over the awarding of the tender to print ballot papers is unnecessary.
Mrs Phiri said the ECZ is a credible institution which should be allowed to execute its own mandate independently.
She said the PF is comfortable with the manner in which the Commission has been undertaking its work.
Meanwhile, the Electoral Commission of Zambia -ECZ- has set Monday, May 16, 2016, as the commencement of campaigns for the August 11 general elections.
ECZ has also set Monday, May 30 to Friday, June 3 2016 as nomination dates for the Presidential candidates.
On the same Monday, May 30, the ECZ will also receive nominations for the Mayoral and Council Chairpersons.
The ECZ has further set Tuesday, May 31, as date for receiving nomination papers for Parliamentary and Local Government elections.
ECZ Public Relations Manager, Cris Akufuna has confirmed this in a statement.
Mr Akufuna has also appealed to political party aspirants to observe and comply with the time-table and NOT engage in campaigns before the stated dates.