• Robert Dansertlaan 250, 1702 Groot-Bijgaarden, Belgium

Porseleinen steunisolatoren voor binnen

Postisolator voor binnen van keramisch materiaal.

Porseleinen steunisolatoren voor binnen – Catalogusblad
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Ceramic / porcelain material

Ceramic groupCeramic groupCeramic groupCeramic group
Sub-GroupC-110C-120C-130C-221
Silicious
Porcelain
Aluminous porcelain
Standard strength
Aluminous porcelain
High strength
Steatite low/loss
angle
PropertiesPropertiesPropertiesSymbolsUnitsAL2O3
<30%
AL2O3
30-50%
AL2O3
>50%
Apparent prosity (open)max.max.PaVolume %0.00.00.00.0
Bulk densitymin.min.δag/cm32,22,32,52,7
Flexural strengthmin.unglazedRfN/mm25090140140
min.glazedRfN/mm260110160-
Modulus of elasticityminEGPa6070100100
Mean coefficient linear expansionα 20-100°C10-6K-13-63-64-76-8
α 20-300°C10-6K-13-63-65-77-9
α 20-600°C10-6K-14-75-75-78-9
Specific heat capacity20°-100°CcpJ/kgK750÷900750÷900750÷900790÷920
Thermal conductivity20°-100°CλW/mK1÷2,51,2÷2,61,5÷4,02,3÷2,8
Resistance to thermal shockmin.ΔtK150150150100
Electric strengthmin.EdkV/mm20202020
Withstand voltagemin.UkV30303030
Relative permittivity48÷62 Hzεr6÷76÷76÷7,56
Dissipational 20°Cmax.48÷62 Hztanδ10-32525301,5
max.1 kHztanδ10-3----
max.1 MHztanδ10-31212151,2
Volume resistivity in terms of temperaturemin.20°CρvΩcm1013101310131012
min.200°CρvΩcm1081081081011
min.600°CρvΩcm104104104107
Temperature corresponding to a volume resistivitymin.100 MΩcmtK100°C200200200500
min.1 MΩcmtK1°C350350350800
For post insulators, hot-dip galvanized cast iron flanges assembled or with :
Sulphur cement = excellent mechanical performances and max use temperature 90°C - Reduced assembly time
Portland cement = max use temperature 200°C - Drying time in mould is longer

Porseleinen isolator voor binnen voor middenspanning

Indoor post insulator of ceramic material.

TYPEArt.123H ± 1P0P50ØDØdØd1fgWeight
kVkVkVmmNNmmmmkg
J 2- 6012017,228609520001300603535M12M120,700
J 4- 60120228609540002600755060M12M121,100
J 8- 60120328609580005200855060M16M161,570
J 2- 75120412387513020001450603545M12M120,900
J 4- 751205387513040002900755060M12M161,600
J 8- 7512063875130800058001006080M16M162,750
J16- 7512073875130160001160012590115M16M165,000
J 2- 95120817,5509517520001550603545M12M121,200
J 4- 951209509517540003100755060M12M162,100
J 8- 9512105095175800062001006080M16M203,600
J16- 9512115095175160001250013090115M16M207,200
J 2-1251212245012521020001600753545M12M122,300
J 4-12512135012521040003200855570M12M163,000
J 8-125121450125210800064501257095M16M206,500
J16-125121550125210160001300014095115M16M208,400
J 2-1701216367017030020001700753545M12M123,000
J 4-170121770170300400034001005580M12M165,800
J 8-1701218701703008000685012570115M16M249,000
J16-1701219701703001600013700160100115M16M2415,000
J 4-250122052952505004000360012570115M12M1614,300
J 8-2501221952505008000725014080115M16M2417,500
J 4-325122272,51403256204000370012570115M12M2017,500
J 8-32512231403256208000740016080115M16M2429,000
1 - Rated Highest voltage for equipment (Um)
2 - Rated Power Frequency Withstand Voltage, wet (50 Hz, 1 min)
3 - Rated Lightning impulse withstand (1.2/50 μs)
P0 - Flexion resistance
P50 - Flexion resistance