Polymer Insulators-for distribution and transmission class voltage are manufactured to the standards of ISO9001-94, CEA, CSA, IEEE, IEC, ANSI and NEMA. Product lines manufactured by K-Line Insulators include transmission and distribution suspension, line post and station post insulators. Other products include polymer-coated guy strains and speciality insulators for in-line switches, air-break switches, interphase spacers and some live line tools.