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Description of products
Gdzpe-8125 is a highly conductive flame retardant polyethylene sheathed material. Compared with ordinary flame-retardant polyethylene sheathed material, high electrical flame-retardant polyethylene sheathed material has better strength elongation, dielectric strength and volume resistivity, and is suitable for the sheath of power cables above 35kV.
Main performance indicators
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Item
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GDZPE-8125
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Density≤g/cm3
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1.32
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tensile strength≥MPa
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13
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fracture growth rate ≥％
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400
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20°C時(shí)volume resistivity≥Ω.m
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1.5*10”
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dielectric strength≥MV/m
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20
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after ageing
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test temperature°C
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110±2
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testing time °C
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240
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tensile strength gradient%
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±25
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breaking elongation gradient%
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±25
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oxygen index≥
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26
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carbon black content(for black sheath only)
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3.0±1.0
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impact embrittlement test -40 °C
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200 °C oxidation induction time(OIT) ≥min
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30
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resistance to environmental stress cracking≥Fo/h
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500
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rat performance (14 days)(if so)
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protection ratio2 0.9
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termite resistance (group method)(if so)
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termite moth resistance grade I
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Processing technology
This product processing performance is superior, suitable for extrusion pipe, half extrusion pipe, extrusion die extrusion. The length-diameter ratio of the extrusion screw is 18-25, the compression ratio is 3:1, and the temperature control in each area of the barrel should have a cooling device.
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Model
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Barrel temperature
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Nose temperature
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GDZPE-8125
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140~160°C
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150~170°C
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Notes
① Before processing, ensure that screw, barrel, hopper thoroughly clean, processing H process is strictly prohibited to bring impurities.
② Once the raw materials are opened, it is recommended to use them within 24 hours. If the package is damaged, it should be dried before use.
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