text.skipToContent text.skipToNavigation

Electro Composites™ - Station Post Insulator ANSI TR 222

By Electro Composites 

Catalog ID: T222C

By Electro Composites
Catalog ID:  T222C
ANSI C29.9 - TR 222 - 25kV Class-95kV BIL, Cast Cycloaliphatic Epoxy Station Post Insulator, 10.0" Length, Outdoor Apparatus

Electro Composites SDC™ composite bushings are designed to provide the toughest, cleanest and safest bushing solution for all HV applications. We make standard OEM and aftermarket form-fit-function replacement bushings for substation transformers, GSU transformers, oil circuit breakers, switchgear, wall/floor (air-air and oil-oil), HVDC and other applications. Available from 1kV up to 170kV with current ratings up to 21,500A. SDC™ (Solid Dielectric Capacitor) bushigs have a one-piece cycloaliphatic epoxycore and integral sheds. All SDC bushings are solid dielectric insulation – oil–free construction, capacitance graded condenser core with internal CT pocket/ground shield and a flange test tap, available in bottom connected or draw-lead configurations. Made in accordance with the most current bushing standards: IEEE C57.19.01, CSA C88.1, IEC 60137.

  • Solid cast cycloaliphatic epoxy compound for optimal strength and outdoor service performance
  • Cast-in place stainless steel inserts
  • Designed per ANSI C29.9 (for Standard TR models)
  • Can be mounted upright or underhung

More Options

Product Details


Application Station Post
Bottom Terminal Type Threaded Inserts
Cantilever Bending Strength - Max. 4000
Color Gray
Compressive Strength 20000 lb
Material - Insulation APG-02 - Cycloaliphatic Epoxy
Mounting Position Vertical to Horizontal
Number of Bolt Holes - Bottom Terminal 4
Number of Bolt Holes - Top Terminal 4
Plating - Bottom Terminal Stainless Steel
Tensile Strength 15,000 lb.
Top Terminal Plating Stainless Steel
Top Terminal Type Threaded Inserts
Torsional Strength 12,000 lb
Type Cast Epoxy


Bottom Terminal Diameter 6.85 in
Diameter - Bottom Terminal Bolt Circle 5.00 in
Diameter - Bottom Terminal Bolt Holes 5/8-11
Diameter - Large Shed 6.85 in
Diameter - Top Terminal Bolt Circle 5.00 in
Diameter - Top Terminal Bolt Holes 5/8-11
Diameter - Top Terminal Outside 6.85 in
Length 10 in
Weight 21.1 lb

Electrical Ratings

BIL 95 kV
Minimum Creepage 18.5 in
Minimum Strike 10.0 in
kV Class 25 kV

Certifications and Compliance

Industry Standard(s) ANSI C29.9

Resources and Downloads

Sales Drawings