Mineral insulated fireproof cable model reference table
The continuous working temperature of the mineral cable is 250℃, and it can supply power continuously for 3 hours at 950℃-1000℃. It can work close to the melting point of copper at 1083℃ in a short or extraordinary period of time. Due to the excellent performance of mineral insulated cables, it is suitable for lines with rated voltages below 1000V.
(1) Cable conductor: The conductor is made of metal copper with high conductivity.
(2) Insulation layer: Use high temperature resistant, non-combustible inorganic minerals as insulation material.
(3) Isolation layer: Use inorganic mineral material.
(4) Outer sheath: low-smoke non-toxic plastic material with good anti-corrosion properties.
Product display methodedit
(1) Fireproof cloth wire, rated voltage 450/750V, single core, 2.5mm,
is expressed as: BTTEB-450/750V 1×2.5
(2) Fireproof power cable, rated voltage 0.6/1KV. 3-core, 120 mm,
is expressed as: BTTE-0.6/1KV 3×120
(3) Fireproof control cable, rated power 450/750V, 6 cores, 2.5 mm
is expressed as: BTTEK-450/750V 6×2.5
The continuous working temperature of the mineral cable is 250℃, and it can supply power continuously for 3 hours at 950-1000℃. It can work close to the melting point of copper at 1083℃ in a short time or in an extraordinary period. Due to the excellent performance of mineral insulated cables, it is suitable for lines with rated voltages below 1000V.
(1) Fire performance
As all mineral cables are made of inorganic materials, they will not cause fire, cannot burn or support combustion, and will not produce toxic gas. Even if there is external flame burning, the cable can still work normally. After the fire is cleared, the cable does not need to be replaced. It is a true fire-resistant cable, which provides a foolproof guarantee for the fire-fighting line and has passed the test of the International Electrotechnical Commission IEC331.
(2) Large current carrying capacity
Because the normal use temperature of mineral insulated cables can reach 250℃. IEC60702 stipulates that the continuous working temperature of mineral insulated cables is 105℃. This is to consider the terminal sealing material and safety requirements. Even so, its interception capacity is far more than other cables, because magnesium oxide powder has a better conductor coefficient than plastic, so the same operating temperature, the interception capacity is greater, for the line above 16mm, you can reduce a cross section, right Where people are not allowed to touch, two cross-sections can be lowered.
(3) Waterproof, explosion-proof, corrosion-resistant
Because the cable adopts low-smoke, halogen-free and high-flame retardant materials as the sheath, it has high corrosion resistance (plastic outer sheath is only needed in the occasion of certain chemical corrosion), and the conductor, insulation and sheath are densely compressed. As a result, it not only protects against water, moisture, oil and some chemical substances, it is practically used in places where there is a risk of explosion and the wiring of various explosion-proof equipment and equipment.
(4) Overload protection
When the line is overloaded, the plastic cable will cause insulation heating or breakdown due to overcurrent or overvoltage. For mineral insulated cables, as long as the heat does not reach the melting point of copper, the cable will not be damaged. Even if the breakdown is instantaneous, the high temperature of the magnesium oxide at the breakdown point will not form carbides. After the overload is cleared, the performance of the cable will not change, and it can still be used normally.
(5) High working temperature
Because the melting point of the insulating layer of magnesium oxide is much higher than that of copper, the maximum normal working temperature of the cable can reach 250°C, and it can continue to operate at a temperature close to the melting point of copper, 1083°C in the short term.
(6) Strong shielding performance
The copper sheath of the cable is the best shielding and protective layer, which can prevent the cable itself from interfering with other cables, and it can also prevent the external magnetic field from interfering with itself.
(7) Long life
Because the cable is composed of inorganic materials, it will not get old, and its service life shall be more than one hundred years at least. And the cable can be re-disassembled and reused with equipment shifting or line modification.
(8) Small outer diameter and light weight
Compared with plastic cables with the same rules, the outer diameter of mineral insulated cables is reduced by 50%, and the weight is reduced by 30%, which can reduce the occupied space and facilitate installation.
(9) High radiation resistance
Since the cables are composed of inorganic materials, they have an effective neutron capture cross-section and maintain a high insulation resistance. Therefore, the electrical and mechanical properties of the cable will not be entangled in any changes after being subjected to nuclear radiation.
(10) Safety and environmental protection
Since the cable's constituent materials are all inorganic substances and do not contain any organic substances, even if the cable is grilled or placed at a temperature above 1000 ℃, it is destructive to copper.
Fireproof cable model and manufacturer correspondence table
BTTZ fireproof cable, BTTVZ fireproof cable, BTTYZ fireproof cable, WD-BTTYZ fireproof cable, BTTQ fireproof cable, BTTVQ fireproof cable, BTTYQ fireproof cable, WD-BTTYQ fireproof cable, YTTW fireproof cable, YTTWY fireproof cable, BTTW fireproof cable, BTTWY fireproof cable Cable, RTTW fireproof cable, RTTWY fireproof cable, BTWTY fireproof cable, BTWTYZ fireproof cable, RWTZ fireproof cable, RWTYZ fireproof cable, BTTRZ fireproof cable, BTTYRZ fireproof cable, BTWGT fireproof cable, BTWGYT fireproof cable, BTTEZ fireproof cable, BTTWE fireproof cable, BTRWY fire-resistant cable corresponds to the Far East cable model: WDZA-RTTY fire-resistant cable or WTTEZ fire-resistant cable/the above fire-resistant cable. The detailed introduction is: copper sheathed inorganic mineral insulated halogen-free low-smoke sheathed flexible fire-resistant cable
RTTZ fireproof cable is a copper sheathed inorganic mineral insulated halogen-free low-smoke sheathed flexible fireproof cable
TBTRZY fireproof cable, BTERZ fireproof cable, BTYRZ fireproof cable, BBTRE fireproof cable, BTMMR fireproof cable, BTMRRZ fireproof cable, FA-BTGYRZ fireproof cable, BTRY fireproof cable corresponding to Far East WTGE
WTGE fire-resistant cable introduction: copper core porcelain rubber synthetic mineral insulated halogen-free low-smoke sheathed flexible fire-resistant cable
BBTRZ fireproof cable, GAN-BTWYZ fireproof cable, BTWYZ fireproof cable correspond to Far East GAN-BBTRZ fireproof cable
GAN-BBTRZ fire-resistant cable introduction: Copper core ceramic glue synthetic mineral insulated halogen-free low-smoke sheathed flexible fire-resistant cable
RTXMY fireproof cable corresponds to Far East WTGHE fireproof cable
WTGHE fire-resistant cable introduction: copper core ceramic glue synthetic mineral insulated aluminum alloy sheath halogen-free low-smoke sheathed flexible fire-resistant cable
NG-ABTLY fireproof cable, NG-A(BTLY) fireproof cable, WDZAN-BTLY fireproof cable, GN-AL fireproof cable, TBTRZL fireproof cable, TBTRZLY fireproof cable, BTWLZ fireproof cable, BTWLY fireproof cable corresponding to Far East WTGHE fireproof cable
HFTGB fireproof cable, HFTGBY fireproof cable, TBTRZB fireproof cable, TBTRZBY fireproof cable, GAN-BTGZ fireproof cable, GAN-BTGYZ fireproof cable, RWGZ fireproof cable, RWGYZ fireproof cable, RWGVZ fireproof cable, WDZA-RTXGY fireproof cable corresponding to Far East WTGGE fireproof cable
WTGGE fire-resistant cable introduction: copper core porcelain rubber synthetic mineral insulated stainless steel tape sheathed halogen-free low-smoke sheathed flexible fire-resistant cable