• Robert Dansertlaan 250, 1702 Groot-Bijgaarden, Belgium

Micaver support insulators with long creepage

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

UnitsTransfer moulding
Physical and mechaincal / Physiques et mécaniques
Specific gravity / Masse spécifique103.kg.m–34.3
Bending strength / Contrainte de rupture en flexionMPa80
Tensile strength / Contrainte de rupture en tractionMPa20
Compressive strength / Contrainte de rupture en compressionMPa260
Hardness / DuretéBrinell80
Thermal / Thermiques
Maximum operating temperature / Température maximale d’utilisation°C350
Softening point / Température de ramollissement°C420
Expansion coefficient / Coefficient de dilatation10–6.K–111
Thermal conductivity (250 °C) / Conductibilité thermique (250 °C)W.m–1.K–10.7
Electrical / Electriques
Dielectric strength / Rigidité diélectriquekV.mm–111
Resistivity / Résistivitélog (10) Ωm13.2
Surface resistivity / Résistivité superficiellelog (10) Ω14.5
Dielectric constant (1 kHz) / Constante diélectrique (1 kHz)11
Dissipation factor (1 kHz) / Tangente angle de perte 1 kHz0.017 - 0.04
Arc resistance / Tenue à l’arcs320
Physicochemical / Physico-chimiques
Porosity – absorption of water after immersion for 48 hours
Porosité – Absorption d’eau après 48 heures d’immersionmg.cm–2none / néant

MV 606

MV LLF - types

ART.Inserts type
Male=M
Female=F
MP
mm
H
(mm)
Pas/pitchWeight
(kg)
Creepage
distance
(mm)
MV LLF 352 FM88351250,1170
MV LLF 352 FM108351500,1170
MV LLF 502 FM1012501500,27102
MV LLF 502 FM1212501750,27102
MV LLF 602 FM1012601500,45160
MV LLF 602 FM1212601750,46160

MV LLF - tech

Dimensional Values / Dimensions / AfmetingenLLF35MV606LLF50LLF60
Height / Hauteur / Hoogte35 mm40 mm50 mm60 mm
Diameter / Diamètre / Diameter5045 mm5050
Hexagonal / Hexagonal / Hexagonaal5042 mm5050 mm
Creepage distance / Ligne de fuite / Kruipstroom lengte70 mm102 mm102 mm60 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 kVNANA
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 / Spanning16 kV16 kV20 kV27 kV
Frequency / Fréquence / Frequentie50 Hz50 Hz50 Hz50 Hz
Duration / Durée / Duur1 min.1 min.1 min.1 min.