Type: electrical grade magnesia powder DL series for high fireproof and damp proof cables
Characteristics and uses:
DL Series is a special magnesium oxide product for silicone oil or non-silicone oil surface treatment fire-proof cables. It is divided into four grades and specifications. It is suitable for the fabrication and use of insulating layers of various high-demand fire-proof cables. With its unique formula, excellent moisture-proof performance and high-temperature resistance, if high-temperature annealing or longer cables are used, it will be built. It is recommended that the magnesium powder be dried for 200-250 degrees and 40-90 minutes before use.
It is applicable to high voltage cables, fire resistant cables, explosion proof cables, etc.
Main chemical components:
Mesh size distribution:
Note: + 425 m and - 45 m contents will be strictly controlled within the prescribed range, in order to obtain the required compaction and flow rate, the content of other items may exceed the above range. (special requirements can be produced according to customer needs)
Flow density and density:
The density of compaction is T.D. (g/cm3): 2.2-2.3 g/cm3.
Flow velocity (F.T. s/100g): 35 + 4
Flow rate (F.R. s/100g): 175 + 20
25KG cartons, woven bags, 1 tons of pallets or packaging according to customer requirements.
Safety and storage:
Electrotechnical grade magnesia powder is non-toxic and has trace dust. It is recommended to wear masks and gloves during use. The product should be stored in dry place, and it is recommended to be used within 12 months after the factory is released.
Main electrical indicators refer to data sheets.
Tube: Incoloy840, Phi 8 x 0.5, L500 wire: Ni80Cr20, Phi 0.35, wire coil 2.3.
Shrinkage tube: Phi 8 to Phi 6.6mm heating length: 450 + 10mm heat treatment: 1050 C /15Min
Note: the chart shows that the typical value of the product under the specified test conditions is L/C for reference only.
Special description of DL series of electrical grade magnesia powder for high fire and damp proof cables.
The DL series of electric grade magnesia powder for high fireproof and dampproof cable is the latest product developed and produced by our company. Since its launch in the market, it has won the unanimous approval and praise of both Chinese and foreign fire-proof cable customers. It is divided into four grades: A B C D, suitable for insulation layer of fire-proof cable under 1200 degrees high temperature. It can withstand the refractory test of 950 degrees and 3 hours. The product is made of high quality fused magnesia by absorbing foreign advanced technology. Compared with domestic high temperature electricians and magnesia products, it has the following advantages:
This product is uniform in color, beautiful in appearance and small in dust, which is beneficial to improving the environment of adding powder.