Mineral Insulated Cable
MICO® Mineral Insulated Cable is composed by:
 

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ETP solid (not stranded) copper cores, from 1 to 400 mm2, melting point 1082°C
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Magnesium Oxide (MgO) as electrical insulation, due to its high performance at high temperature (melting point 2600°C)
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High quality DHP copper sheath, manufactured starting from tubes extruded and drawn only (not welded), melting point 1082°C
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LSF additional outer covering. Such flame retardant poliolephin is characterised by high performance in corrosion resistance and low smoke emission.

MICO® Cable range is divided into:

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Light duty cables (300/500 V) from 2 to 7 cores, from 1 to 4 mm2 size
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Heavy Duty Cables (450/750 V) from 1 to 19 cores, 400 mm2 maximum size for single core, 25 mm2 maximum size up to 4 cores.

Production process held by KME foresee many steps of diameter reduction (both drawings and rollings) separated by high temperature annealing. Long lead time (average is 8 weeks) grants high quality cable at the end of the process: strong compression of MgO powder (density about 2 kg/cm3) allows very high values of insulation resistance (also if burned, 180° bended or flattened) and thermal conductivity. Therefore current ratings are higher than soft skin cables, especially at high temperature.

Applications and advantages

FIRE RESISTANCE –
weaker situation is copper melting point (1082°C) MICO® is the safest cable, it can withstand to severe fire, water and mechanical tests as foreseen by British (LPCB), European and australian standards

EMERGENCY SYSTEMS –
MICO® is the only cable to go on working also during a fire, so to supply (for at least 120 minutes, maximum time 3 hours) emergency lamps, acoustic alarms, sprinklers, automatic doors, elevators and so on

FIRE DETECTION –
MICO® cables allow fire controller units to receive signals by fire detectors also during a fire. MICO® twisted cables (for signal transmission), in addition to MICO® light duty cables (for power supply), are able to match technical requirements by most popular fire detection systems

BUS SYSTEMS –
World leaders like ABB or Schneider Electric already tested and approved MICO® as suitable cable for distribution in their bus systems, limiting MICO® specification in fire hazardous areas or in historical buildings, where standard bus cables need are not recommended

HISTORICAL BUILDINGS –
standard electrical plant can deeply impact aesthetical aspect of old buildings: where integrity of original structure must be saved and hidden installation is not allowed (or its cost would be too much), MICO® is the perfect solution for an installation at sight. You can also trust on copper capacity of disappearing, day after day, if used on particular environment like stone, brick, wood.

TUNNELS –
Emergency lights and fan coils are required to go on working also during a fire, to allow people using emergency exits. In order to save their life, MICO® is really able to withstand high temperatures during a car fire.











Mineral insulated cable TWISTED - code:2T1.5


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Building management systems
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Fire detection systems
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Closed circuit television
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Fire telephone systems
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Data networks

Dimensional characteristics

Manufatured following the requirements of BS 6207
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Numbers of conductors 2 x 1.5 mm²
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Insulation (MgO)
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Diameter over copper sheath (5.7 mm)
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Red LSF additional sheath (7.2 mm)
In 100 mtrs coils

Electric characteristics

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Voltage rating
500 V
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Conductors resistance (max.)
12.1 ohm/km
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Nominal sheath resistance (screen)
2.7 ohm/km
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Nominal capacitance conductor to conductor
164.5 pF/m
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Nominal capacitance one conductor to sheath at 1 kHz
243.5 pF/m
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Nominal capacitance between conductors and copper sheath at 1 kHz
384.4 pF/m
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Nominal inductance (loop) at 10 MHz
436.0 μH/m
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Attenuation at 1 MHz
- 19.0 dB/km
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Attenuation at 10 MHz
- 52.0 dB/km
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Nominal chatacteristic impedance
50 ohm



On request KME is able to produce twisted cables 2T1 and 2T2.5 and also shielded MI cables with double insulation
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