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A kind of b1 level high flame retardant green environmental protection low-voltage AC cable for smart grid and its manufacturing process

A technology of green environmental protection and smart grid, which is applied in the direction of cable/conductor manufacturing, insulated cables, conductor/cable insulation, etc., and can solve the problems that cannot meet the requirements of the B1 combustion level of the user unit

Active Publication Date: 2020-04-10
JIANGSU HENGTONG POWER CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing low-voltage AC cables for smart grids on the market can meet the requirements of bundled flame retardancy, low-smoke, halogen-free, and smoke density, as well as heat release characteristics, smoke release characteristics, flammability of drippings, and so on under fire conditions. Products with indicators such as smoke toxicity are still blank, and cannot meet the requirements of the user unit for the B1 combustion level

Method used

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  • A kind of b1 level high flame retardant green environmental protection low-voltage AC cable for smart grid and its manufacturing process
  • A kind of b1 level high flame retardant green environmental protection low-voltage AC cable for smart grid and its manufacturing process
  • A kind of b1 level high flame retardant green environmental protection low-voltage AC cable for smart grid and its manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Mix the following raw materials: ethylene-vinyl acetate copolymer resin 25kg, linear low density polyethylene 75kg, composite reinforcing agent 43kg (diatomaceous earth 15kg, carbon black 28kg), composite lubricant 2.2kg (zinc stearate 1kg, Hydroxy silicone oil 1.2kg), flame retardant 72kg (aluminum hydroxide 72kg), antioxidant 0.9kg (antioxidant 264 0.9kg), ultraviolet absorber 0.55kg (2-hydroxyl-4-n-octyloxydiphenylmethylbenzene ketone 0.55kg), mixed in a high mixer for 2 to 8 minutes, and then transferred to a twin-screw extruder for extrusion at a temperature of 110°C and a screw speed of 60 to 300 rpm, and then granulated at 130°C. Get the outer sheath material and spare it.

[0067] The 5-conductor core is drawn and annealed, twisted and pressed tightly, and 2 layers of fluorophlogopite tape are overlapped and wrapped around the conductor to form a fire-resistant wrapping layer, and then cross-linked polyethylene is extruded to form an insulating layer and cabled,...

Embodiment 2

[0069] Mix the raw materials of the following weight: 35kg of ethylene-vinyl acetate copolymer resin, 65kg of linear low-density polyethylene, 53kg of composite reinforcing agent (21.2kg of diatomaceous earth, 31.8kg of white carbon black), 1.8kg of composite lubricant (stearic acid Zinc 1kg, hydroxyl silicone oil 0.8kg), flame retardant 88kg (aluminum hydroxide 35kg, magnesium hydroxide 53kg), antioxidant 1.1kg (antioxidant 1076 1.1kg), ultraviolet absorber 0.45kg (2-hydroxy-4 -Methoxybenzophenone 0.25kg, 2-hydroxyl-4-n-octyloxybenzophenone 0.2kg), high mixer mixing for 2 to 8 minutes, then transferred to twin-screw extruder for extrusion , the temperature is 170°C, the screw speed is 60-600 rpm, and then granulated at 120°C to obtain the outer sheath material and set aside.

[0070] The 5-conductor core is drawn and annealed, twisted and pressed tightly, and 3 layers of fluorophlogopite tape are overlapped and wrapped around the conductor to form a fire-resistant wrapping la...

Embodiment 3

[0072] Mix the raw materials of the following weight: ethylene-vinyl acetate copolymer resin 30kg, linear low density polyethylene 70kg, composite reinforcing agent 48kg (diatomaceous earth 18kg, acetylene carbon black 30kg), composite lubricant 2kg (zinc stearate 1kg, Hydroxy silicone oil 1kg), flame retardant 80kg (aluminum hydroxide 42kg, magnesium hydroxide 46kg), antioxidant 1kg (antioxidant 1010 1kg), ultraviolet absorber 0.5kg (2-hydroxy-4-methoxydiphenyl Methanone 0.5kg), mixed in a high mixer for 2-8 minutes, then transferred to a twin-screw extruder for extrusion, the temperature is 150°C, the screw speed is 100-400 rpm, and then pelletized at 140°C That is, the outer sheath material is obtained and set aside.

[0073]The 5-conductor core is drawn and annealed, twisted and pressed tightly, and 2 layers of fluorophlogopite tape are overlapped and wrapped around the conductor to form a fire-resistant wrapping layer, and then cross-linked polyethylene is extruded to for...

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Abstract

The invention relates to the field of manufacturing B1-level cables for smart grids, in particular to a B1-level high-flame-retardant green environment-friendly low-voltage AC cable for smart grids and a manufacturing process thereof. The cable comprises at least three conductor cores, and has the structure of a flame retardant filling layer + a first flame retardant wrapping layer + a high-oxygen-insulation layer + an armor layer + a second flame retardant wrapping layer + a high-flame retardant, low-smoke, non-halogen, anti-ultraviolet and anti-rat ant outer protective layer; The high-flame-retardant, low-smoke, halogen-free, ultraviolet-ray-proof, rat-proof and ant-proof outer protective layer is mainly made of the following raw materials: 25 to 35 parts of ethylene-vinyl acetate copolymer resin, 65 to 75 parts of linear low density polyethylene, 43 to 53 parts of composite reinforcing agent, 1.8 to 2.2 parts of composite lubricant, 72 to 88 parts of flame retardant, 0.9 to 1.1 parts of antioxidant, and 0.45 to 0.55 parts of ultraviolet absorber. The cable structure is reasonable, and has the characteristics of anti-ultraviolet ray, low smoke, halogen-free, flame-retardant B1 grade, anti-rat, anti-termite and the like.

Description

technical field [0001] The invention relates to the field of manufacturing B1-grade cables for smart grids, in particular to a B1-grade high-flame-retardant, green and environment-friendly low-voltage AC cable for smart grids and a manufacturing process. Background technique [0002] The construction of a strong smart grid can meet the needs of economic and social development for electricity, can cope with the challenges brought about by resource and environmental issues, can adapt to the development requirements of diversified power generation and consumption, and can meet the needs of diversified power services. The strong smart grid is based on a strong grid, supported by a communication information platform, and intelligently controlled by means of intelligent control. It includes six major links of power system generation, transmission, transformation, distribution, consumption and dispatch, covering all voltage levels. Realize the highly integrated integration of "powe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/18H01B7/02H01B7/295H01B7/28H01B13/26H01B13/10
CPCH01B7/0258H01B7/1875H01B7/1895H01B7/28H01B7/295H01B13/10H01B13/26
Inventor 郑建平任虹光万育萍康慧王登锋俞国良
Owner JIANGSU HENGTONG POWER CABLE
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