Micaver bushings

Micaver bushings
Micaver insulators, made of a mineral that does not burn, have a high mechanical resistance in tension and compression. They can be used up to a temperature of 350° – 400°C.
Micaver
| Units | Transfer moulding | |
|---|---|---|
| Physical and mechaincal / Physiques et mécaniques | ||
| Specific gravity / Masse spécifique | 103.kg.m–3 | 4.3 | 
| Bending strength / Contrainte de rupture en flexion | MPa | 80 | 
| Tensile strength / Contrainte de rupture en traction | MPa | 20 | 
| Compressive strength / Contrainte de rupture en compression | MPa | 260 | 
| Hardness / Dureté | Brinell | 80 | 
| Thermal / Thermiques | ||
| Maximum operating temperature / Température maximale d’utilisation | °C | 350 | 
| Softening point / Température de ramollissement | °C | 420 | 
| Expansion coefficient / Coefficient de dilatation | 10–6.K–1 | 11 | 
| Thermal conductivity (250 °C) / Conductibilité thermique (250 °C) | W.m–1.K–1 | 0.7 | 
| Electrical / Electriques | ||
| Dielectric strength / Rigidité diélectrique | kV.mm–1 | 11 | 
| Resistivity / Résistivité | log (10) Ωm | 13.2 | 
| Surface resistivity / Résistivité superficielle | log (10) Ω | 14.5 | 
| Dielectric constant (1 kHz) / Constante diélectrique (1 kHz) | 11 | |
| Dissipation factor (1 kHz) / Tangente angle de perte 1 kHz | 0.017 - 0.04 | |
| Arc resistance / Tenue à l’arc | s | 320 | 
| Physicochemical / Physico-chimiques | ||
| Porosity – absorption of water after immersion for 48 hours | ||
| Porosité – Absorption d’eau après 48 heures d’immersion | mg.cm–2 | none / néant | 
MV604

MV 604 - type
| ART. | Inserts type Male=M Female=F  | M | P mm  | Pas/pitch | Weight (kg)  | 
|---|---|---|---|---|---|
| MV 604 A | 2 F | 10 | 13 | 150 | 0.77 | 
| MV 604 B | 2 F | 12 | 12 | 175 | 0.46 | 
| MV 604 C | 2 F | 10 | 10 | 150 | 0.46 | 
| MV 604 D | 2 F | 8 | 15 | 125 | 0.46 | 
MV604 specification
| Mechanical characteristics / Caract. Mécaniques / Mechanische kenmerken | |
|---|---|
| Torsion / Résist. Torsion / Wringingsweerstand | daN | 
| MV 604 A | ≥ 4.5 | 
| MV 604 B | ≥ 6 | 
| MV 604 C | ≥ 4.5 | 
| MV 604 D | ≥ 2 | 
| Flexural Strength / Resist. flexion / buigweerst. | DaN | 
| MV 604 A | ≥ 8 | 
| MV 604 B | ≥ 8 | 
| MV 604 C | ≥ 8 | 
| MV 604 D | ≥ 8 | 
| Electrical characteristics / Caract. électriques / Electrische kenmerken | |
| Maximum operating intensity / ntensité maximale / Max. intenisteit | A | 
| MV 604 A | ≤ 1000 | 
| MV 604 B | ≤ 1000 | 
| MV 604 C | ≤ 1000 | 
| MV 604 D | ≤ 1000 | 
| Max Operating Voltage / Tension d’emploi / Gebruikspanning | kV | 
| MV 604 A | ≤ 3 | 
| MV 604 B | ≤ 1 | 
| MV 604 C | ≤ 1 | 
| MV 604 D | ≤ 1 | 
| Test Conditions / Conditions d’essais / Testomstandigheden | |
| Voltage / Tension / Spanning | 10 kV | 
| Frequency / Fréquence / Frequentie | 50 Hz | 
| Duration / Durée / Duur | 1 min. | 
MV467

MV 467 - type
| ART. | Inserts type Male=M Female=F  | M | I (mm)  | Pas/pitch | Weight (kg)  | 
|---|---|---|---|---|---|
| MV 467 A | 1 rod/tige | 5 | 15 | 80 | 0.12 | 
| MV 467 B | 1 rod/tige | 8 | 20 | 125 | 0.22 | 
| MV 467 N | 1 rod/tige | 12 | 35 | 175 | 0.36 | 
MV467 specification
| Mechanical characteristics / Caract. Mécaniques / Mechanische kenmerken | |
|---|---|
| Tensile Strength / Résist. Traction / Trekweerstand | daN | 
| MV 467 A | ≥ 600 | 
| MV 467 B | ≥ 1800 | 
| MV 467 N | ≥ 3500 | 
| Torsion / Résist. Torsion / Wringingsweerstand | Dam.N | 
| MV 467 A | ≥ 0.5 | 
| MV 467 B | ≥ 2 | 
| MV 467 N | ≥ 6 | 
| Electrical characteristics / Caract. électriques / Electrische kenmerken | |
| Arc-over Voltage (dry) / Tension de contournement / Omtrek (droog) | kV | 
| MV 467 A | ≥ 11 | 
| MV 467 B | ≥ 13 | 
| MV 467 N | ≥ 13 | 
| Breakdown Voltage / Tension de perforation / Perforatie | kV | 
| MV 467 A | ≥ 15 | 
| MV 467 B | ≥ 18 | 
| MV 467 N | ≥ 20 | 
| Maximum operating intensity / ntensité maximale / Max. intenisteit | A | 
| MV 467 A | ≤ 100 | 
| MV 467 B | ≤ 300 | 
| MV 467 N | ≤ 600 | 
| Test Conditions / Conditions d’essais / Testomstandigheden | - | 
| Voltage / Tension / Spanning | 10 kV | 
| Frequency / Fréquence / Frequentie | 50 Hz | 
| Duration / Durée / Duur | 1 min. | 




