AC voltage test of inorganic mineral insulated fireproof cables with rated voltage Finished cables should be tested according to GB/T3048-2007. Flexible fireproof cables should be tested at AC 50Hz, 5min, 3500V, and rigid fireproof cables should be tested at AC 50Hz, 1min, 2500V. The insulation should not be broken down.
For halogen-free and low-smoke cables, their halogen-free performance meets the requirements of GB/T17650-2021, and their low-smoke performance meets the requirements of GB/T17651-2021.
AC rated voltage : 0.6/1kV, suitable for low voltage power system, 750V
Minimum ambient temperature: -15℃
Conductor material: Copper conductor, some models support multi-core twisted structure
Insulation material: Inorganic minerals (such as magnesium oxide, aluminum oxide or ceramic silicone
rubber) as the core insulation layer.
Sheath type: The outer layer uses seamless copper sheath or interlocking armor structure
The single-core cross-section can reach 630~800mm², the multi-core cross-section range is 1.5~240mm²,
and the number of cores supports 2~61 cores.
Safety: Inorganic materials do not support combustion or release toxic smoke in fire, and the copper
sheath can prevent the spread of fire.
Reliability: The interlocking armored structure resists mechanical shock and adapts to complex
environments.
Economical: The long-distance jointless design reduces the risk of failure, and the service life far exceeds
that of ordinary cables.
Inorganic mineral insulated fireproof cables with rated voltage of 0.6/1kV and below are mainly used as
carriers of power systems for transmission and distribution systems, and are used for power supply of
special important loads such as emergency lighting, fire alarm, generator room, etc. in densely populated
places such as subway tunnels, high-rise buildings, hospitals and shopping malls. The products are
divided into rigid and flexible structures according to the structure, and copper sheath and aluminum
sheath according to the metal sheath material.
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