Exhibit 99.1

     CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


         I, Robert G. Ruhlman, President and Chief Executive Officer, of
Preformed Line Products (the "Company"), certify, pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that:

          1)        The  Quarterly  Report on Form 10-Q of the  Company  for the
                    period  ended  September  30, 2002 which this  certification
                    accompanies  fully complies with the requirements of section
                    13(a) or 15(d) of the Securities Exchange Act of 1934: and

          2)        The information  contained in the Report fairly presents, in
                    all material respects,  the financial  condition and results
                    of operations of the Company.

November 7, 2002                       /s / Robert G. Ruhlman
                                       ----------------------
                                       Robert G. Ruhlman
                                       President and Chief Executive Officer
                                       (Principal Executive Officer)