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A transmission line and environmental protection technology, applied in the field of environmental protection transmission line sheath, can solve the problems of easy cable laying damage, existence of harmful substances, falling off, etc. Effect
Inactive Publication Date: 2015-11-11
STATE GRID SHANDONG ELECTRIC POWER +1
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Summary
Abstract
Description
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Application Information
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Problems solved by technology
The sheath material of high-voltage cables is generally made of materials with high insulation resistance. In actual use, graphite is generally coated on the sheath layer for discharge, but it is easy to damage and fall off during cable laying, polluting the surrounding environment, and seriously Affect the normal detection during the cable installation process, causing a lot of trouble to manufacturers and users
And we have noticed that although these cable sheaths are reinforced with PVC and other materials, these materials will produce a lot of smoke during combustion, which not only contains harmful substances but also may cause people to suffocate
Method used
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Examples
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Effect test
Embodiment 1
[0011] Embodiment 1: An environment-friendly transmission line sheath, which is composed of the following ingredients in parts by weight: 35-40 parts of metallocene polyethylene, 30-40 parts of EPDM rubber, and 20-30 parts of chlorinated polyvinyl chloride resin , Maleic anhydride grafted EVA 2-5 parts, aluminum hydroxide micropowder 2-3 parts, barium stearate 0.5-1 part, antioxidant PS8022-4 parts.
Embodiment 2
[0012] Embodiment 2: An environment-friendly transmission line sheath, which consists of the following ingredients in parts by weight: 36-38 parts of metallocene polyethylene, 32-36 parts of EPDM rubber, and 24-28 parts of chlorinated polyvinyl chloride resin , Maleic anhydride grafted EVA 3-4 parts, aluminum hydroxide fine powder 2.4-2.8 parts, barium stearate 0.6-0.8 parts, antioxidant PS8023-4 parts.
Embodiment 3
[0013] Embodiment 3: An environment-friendly transmission line sheath, consisting of the following ingredients in parts by weight: 37 parts of metallocene polyethylene, 34 parts of EPDM rubber, 26 parts of chlorinated polyvinyl chloride resin, maleic anhydride grafted 3.5 parts of EVA, 2.5 parts of aluminum hydroxide micropowder, 0.7 parts of barium stearate, 3.5 parts of antioxidant PS802.
[0014] Fully mix the maleic anhydride grafted EVA, aluminum hydroxide micropowder, barium stearate and antioxidant PS802 in the above parts by weight, and stir evenly, then add to the internal mixer, and blend in the internal mixer for 10-12min Finally, put the homogeneously mixed material into an open mill to refine and mold it into a molten material.
[0015] Add the molten material formed above into the metal wool polyethylene, EPDM rubber and chlorinated polyethylene resin in the weight part and enter it into a high-speed stirring pot for stirring. After the raw materials that have be...
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Abstract
The invention discloses an environment-friendly transmission line sheath, which belongs to the field of cable sheaths and is used for transmission line protection. The environment-friendly transmission line sheath comprises the following components in parts by weight: 35-40 parts of metallocene polyethylene, 30-40 parts of ethylene propylene diene monomer rubber, 20-30 parts of chlorinated polyvinyl chloride resin, 2-5 parts of maleic anhydride graft EVA (ethylene-vinyl acetate), 2-3 parts of aluminum hydroxide micropowder, 0.5-1 part of barium stearate and 2-4 parts of antioxidant PS802. According to the technical scheme, the environment-friendly transmission line sheath can overcome the defect of toxic and harmful gas generated in the PVC (polyvinyl chloride) material combustion process, and can avoid the problems of damage and shedding of the graphite layer on the high-tension transmission line.
Description
technical field [0001] The invention belongs to the field of cable sheaths, and in particular relates to an environment-friendly power transmission line sheath. Background technique [0002] When the cable is in use, a flame-retardant sheath material is added to the outer layer to prevent the cable from accumulating a large amount of heat and causing a fire. The sheath material of high-voltage cables is generally made of materials with high insulation resistance. In actual use, graphite is generally coated on the sheath layer for discharge, but it is easy to damage and fall off during cable laying, polluting the surrounding environment, and seriously It affects the normal detection in the cable installation process and causes a lot of troubles to manufacturers and users. And we have noticed that although these cable sheaths contain PVC and other materials for reinforcement, these materials will produce a lot of smoke during combustion, which not only contains harmful substa...
Claims
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Application Information
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