Strain Insulators
Strain Insulators,Holding the Line Under Tension
Strain insulators bear the pull of suspended wires or cables, preventing accidental contact with structures — per ANSI C29.4 in grey or brown.

Tension-Rated Porcelain Strain Insulators
A strain insulator is installed on the cable to bear the pull of a suspended wire or cable — effectively avoiding accidental contact with structures. Manufactured to ANSI C29.4 with grey or brown color, and available as part of complete stay sets (stay plate, stay rod, stay bow, thimble, stay wire and insulator).
Key Technical Advantages
Tension Rated
Bears the pull of suspended wires and cables.
Stay Set Ready
Compatible with complete stay sets for pole anchoring.
ANSI Compliant
Manufactured to ANSI C29.4 standards.
Proven Design
Also used to support radio antennas and overhead power lines.
Optimized Design Features
- ✓Electrical insulator working in mechanical strain
- ✓ANSI C29.4 with grey or brown color
- ✓Part of complete stay sets
- ✓Prevents accidental cable-to-structure contact
- ✓High mechanical strength fittings
Industry Applications
- ✓Stay wire / guy wire insulation
- ✓Radio antenna support
- ✓Overhead power line anchorage
- ✓Pole and tower stays
- ✓LV distribution networks
Get a Custom Quote in 24 Hours
Send us your specifications — voltage class, BIL, drawings or standards — our engineering team will respond within one business day with pricing and technical recommendations.
- Direct communication with engineers, not sales reps
- Free technical consultation & sample support
- FOB / CIF / DDP terms — we handle the logistics






