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MI Mineral Insulated Cable Fire-resistant BTTZ

MI Mineral Insulated Cable Fire-resistant BTTZ

Model:
BTTZ
Conductor:
Class1 Solid plain copper
Insulation:
magnesium oxide (MgO)
Sheath:
Copper
Rated Voltage:
0.6/1kV
Core No.:
Multi-core
Max. Service Temperature:
250℃
Min. service temperature:
-40℃
Standard:
IEC 60502
Approvals:
IEC CE RoHS
Packaging:
Available in rolls and drums
Color:
Orange
Price
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Quantity Needed:
Pieces
E-mail:
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APPLICATIONS

A Mineral insulated cable (MI cable) is a specialized type of cable used in high temperatures or harsh environmental conditions because it has low flammability, even when operating at high temperatures. It resists oxidation and enables precise measurement. MI cable consists of copper wires inside a copper, stainless steel, or Inconel® sheath, insulated by packed minerals such as magnesium oxide (MgO). Magnesium oxide makes an excellent electrical insulation material because it resists oxidation and ionizing radiation, and it is both chemically and physically stable at high temperatures. After the MI cable has been packed with MgO insulation, it may be rolled under pressure to achieve the desired diameter. The outer sheath protects the internal thermocouple wire from heat, chemical or other environmental damage. The metal sheath may be covered with an additional colored plastic sheath to add in identification and to add an additional layer of protection from corrosion.

DATASHEET


Cross-section Strands No./Dia. of Conductor

Insulation Thickness

Insulation Thickness of 

Mica Tape

Thickness of 

Copper Sheath

Cable Overall Diamter

Max. D.C Resistance

Insulation 

Resistance

mm²N/mmmmmmmm

Lower Limit

 (mm)

Copper

 Conductor

Copper 

Sheath

Ω /km
3×25+1×167/2.29+7/1.830.450.450.4521.6±5%0.7270.6281000
3×35+1×167/2.65+7/2.290.450.4950.49523.7±5%0.524
0.567
1000
3×50+1×2510/2.62+7/2.290.4950.540.5424.3±5%0.387
0.5521000
3×70+1×3514/2.62+7/2.650.540.540.5428.2±5%0.268
0.390
1000
3×95+1×5018/2.62+10/2.620.540.540.5432.8±5%0.1930.328
1000
3×120+1×7023/2.62+14/2.620.540.540.5437.2±5%0.153
0.2841000
3×150+1×7028/2.62+14/2.620.540.630.6338.4±5%0.1240.2751000
3×185+1×9535/2.62+19/2.620.630.630.6341.3±5%0.09910.2531000
3×240+1×12045/2.62+24/2.620.630.630.6346.2±5%0.07540.2241000


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