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.
This composite material makes it possible to mechanically hold two parts together while isolating them electrically. These functions are maintained under various environmental conditions (vibrations, rain, etc.), thermal shocks and high operating temperature.
Micaver® insulators are classified A1 and therefore do not burn (EN45545-2).
In order to prevent most rust problems in saline and aggressive environments, Micaver® insulators can be made with 304L stainless steel inserts that meet all the requirements of standard NF F 61-016.
Micaver support insulators with long creepage
Micaver support insulators with long creepage
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 |
MV 606
MV LLF - types
| ART. | Inserts type Male=M Female=F | M | P mm | H (mm) | Pas/pitch | Weight (kg) | Creepage distance (mm) |
|---|---|---|---|---|---|---|---|
| MV LLF 35 | 2 F | M8 | 8 | 35 | 125 | 0,11 | 70 |
| MV LLF 35 | 2 F | M10 | 8 | 35 | 150 | 0,11 | 70 |
| MV LLF 50 | 2 F | M10 | 12 | 50 | 150 | 0,27 | 102 |
| MV LLF 50 | 2 F | M12 | 12 | 50 | 175 | 0,27 | 102 |
| MV LLF 60 | 2 F | M10 | 12 | 60 | 150 | 0,45 | 160 |
| MV LLF 60 | 2 F | M12 | 12 | 60 | 175 | 0,46 | 160 |
MV LLF - tech
| Dimensional Values / Dimensions / Afmetingen | LLF35 | MV606 | LLF50 | LLF60 | ||||
|---|---|---|---|---|---|---|---|---|
| Height / Hauteur / Hoogte | 35 mm | 40 mm | 50 mm | 60 mm | ||||
| Diameter / Diamètre / Diameter | 50 | 45 mm | 50 | 50 | ||||
| Hexagonal / Hexagonal / Hexagonaal | 50 | 42 mm | 50 | 50 mm | ||||
| Creepage distance / Ligne de fuite / Kruipstroom lengte | 70 mm | 102 mm | 102 mm | 60 mm | ||||
| Mechanical characteristics / Caract. Mécaniques / Mechanische kenmerken | ||||||||
| Tensile Strength / Résist. Traction / Trekweerstand | ≥ 800 daN | ≥ 800 daN | ≥ 1900 daN | ≥ 1000 daN | ||||
| End flexural Strength / Resist. flexion en tête / buigweerst. (boven) | ≥ 160 daN | ≥ 110 daN | ≥ 400 daN | ≥ 200 daN | ||||
| Compressive / Résist. Compression / Drukweerstand | ≥ 4000 daN | ≥ 4000 daN | ≥ 4000 daN | ≥ 4000 daN | ||||
| Torsion / Résist. Torsion / Wringingsweerstand | ≥ 2.3 Dam.N | ≥ 1 Dam.N | ≥ 4.5 Dam.N | ≥ 4.5 Dam.N | ||||
| Electrical characteristics / Caract. électriques / Electrische kenmerken | ||||||||
| Arc-over Voltage (dry) / Tension de contournement / Omtrek (droog) | NA | ≥ 30 kV | NA | NA | ||||
| Breakdown Voltage / Tension de perforation / Perforatie | ≥ 20 kV | ≥ 20 kV | ≥ 24 kV | ≥ 35 kV | ||||
| Insulation resist./ Résist.d’isolement / Oppervlakteweerstand (1000 V) | ≥ 10 6 | ≥ 10 6 | ≥ 10 6 | ≥ 10 6 | ||||
| Capacitance (1KHz) / capacité (1KHz) / Capaciteit (1 KHz) | .... | .... | .... | .... | ||||
| Test Conditions / Conditions d’essais / Testomstandigheden | ||||||||
| Voltage / Tension / Spanning | 16 kV | 16 kV | 20 kV | 27 kV | ||||
| Frequency / Fréquence / Frequentie | 50 Hz | 50 Hz | 50 Hz | 50 Hz | ||||
| Duration / Durée / Duur | 1 min. | 1 min. | 1 min. | 1 min. |