Coronaless
High-grade electrical insulation materials
■Features ○Excellent electrical properties There are no air bubbles inside, and it has particularly outstanding through-layer dielectric strength. It can be used safely even under high voltage. ○Excellent airtightness Due to the good adhesion between the substrate and the resin, it is optimal as an insulating component where airtightness and oil tightness are required. ○Excellent mechanical strength It is manufactured using a method that does not compromise the strength of glass fibers, resulting in excellent mechanical strength. ○Usable at extremely low temperatures It can also be used in liquid helium.
basic information
Set the glass cloth in the mold, and then inject epoxy resin while applying a vacuum (vacuum impregnation) and cure it with heat. This process prevents the formation of air bubbles (voids) inside, resulting in excellent insulation reliability. The materials come in the shapes of "tubes" and "plates." "Rods" are also produced by machining from plates.
Price range
Delivery Time
Model number/Brand name
Coronaless
Applications/Examples of results
1. Insulating operation rods for gas, vacuum, and air circuit breakers, etc. 2. Insulating tubes and operation rods for small oil circuit breakers, etc. 3. Insulating operation rods for small magnetic circuit breakers, etc. 4. Supporting insulating rods, operation shafts, insulating tubes, and magnetic chute stop bolts for transformer tap change devices, etc. 5. Supporting insulating plates for silicon rectifiers. 6. Insulating rods for distribution lines. 7. Insulating bolts and nuts. 8. Flanges for refrigerated double containers. 9. Other general glass laminated tubes where electrical instability is a concern.
Detailed information
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Corona-less tube Standard inner diameter: 12 to 999 mm. Standard outer diameter: 17 to 1040 mm. Standard length: 1000 mm / 1200 mm.
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Processed products of corona-resistant boards. These are processed products for insulating operation rods. The two in the front have a coating treatment on the surface. Standard thickness: 5–50mm. Standard width: 500mm/1000mm. Standard length: 1000mm/1100mm/1200mm. Rods can also be made by machining from the boards.
Line up（4）
| Model number | overview |
|---|---|
| ER-5000 | Corona-free tube (glass fabric substrate / epoxy resin). For high-grade electrical insulation |
| ER-5600 | Corona-free tube (glass roving fabric substrate / epoxy resin). For electrical insulation, high strength |
| ER-6000 | Corona-free board (glass fabric substrate / epoxy resin). For high-grade electrical insulation. |
| ER-6600 | Corona-free board (glass roving fabric substrate / epoxy resin) for electrical insulation. High strength |
