INSULIGN® Polymer Line Post Insulator INSULIGN® Polymer Line Post Insulators are a direct replacement for high-voltage porcelain or compos.. Product #: INSULIGN Polymer Insulator - Tie Top

INSULIGN® Polymer Line Post Insulator


INSULIGN® Polymer Line Post Insulators are a direct replacement for high-voltage porcelain or composite insulators. They are designed to meet the dimensional, electrical, and mechanical requirements as defined in ANSI C29.7, Class 57-3 and ANSI C29.18, Class 51-4F. 

By using ANSI head and neck dimensional standards, PLP factory-formed ties (for bare or covered conductors) will install easily and provide superior holding and electrical performance. Consult PLP for the suitability of other factory formed tie brands with these insulators. 

  • Superior moisture and contamination shedding due to gradually reduced shed diameters

  • UV stabilized material

  • Matched dielectric properties with covered conductor

  • Lightweight design – less than half the weight of aluminum

  • ANSI C29.7 & C29.18 compliant 

  • Aluminum base

  • Manufactured from a proprietary high-density polyethylene-based compound

  • Tie top designs are perfect for use with all PLP ties

Insulator Data ANSI C29.7
Class 57-3
ANSI C29.18
Class 51-4F
PLP
IP-51-4F
Neck Designation  F F F
Typical 3 Phase Application (kV)  25/35 25/35 25/35
Part Weight (lbs)     5.5
Max. Conductor Diameter-Top Groove (in) 1-15/16"    1-15/16"
Mounting Hole  3/4" 3/4" 3/4"-10
Leakage Distance (in) 29 29 30
Dry Arc Distance (in) 12.25 12.25 13
Flashover 60 Hz Dry (kV)  125 125 125
Flashover 60 Hz Wet (kV) 95  95  91(3)
Impulse Flashover-Positive (kV) 200 200 206
Impulse Flashover-Negative (kV) Not Defined Not Defined -349
Radio Influence Voltage (RIV)  
Specified Cantilever Load (SCL) (lbs) 2800 2240 2400
Max. Design Cantilever Load (MDCL) (lbs) 1120(1)    1250(2)
Specified Tensile Load (STL) (lbs)  Not Defined 2000 >3000
Max Conductor Temp (°C) Not Defined Not Defined

120