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Ship high ampacity low surface temperature rise protective cable and manufacturing method thereof

A manufacturing method and low-surface technology, applied in the field of power cables, can solve problems such as affecting facility safety, reducing cable current carrying capacity, and poor cable heat dissipation, and achieving the effect of increasing current carrying capacity and reducing temperature

Active Publication Date: 2016-02-03
江苏远桥电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology is mainly to increase the current carrying capacity of the cable by increasing the rated working temperature of the insulation and sheath material. However, due to the small thermal resistance coefficient of the existing material, the surface temperature of the cable is very high, which can reach 110 ° C. The heat dissipation in the narrow space of the ship is not smooth, causing the ambient temperature to rise, which will further reduce the current carrying capacity of the cable, and affect the safety of other surrounding facilities, resulting in a vicious circle
The thermal resistance coefficient of the existing rubber insulation material is 6.0K m / W, and the thermal resistance coefficient of the low-smoke halogen-free sheath material is 3.5K m / W, which is not enough to reduce the temperature rise of the cable surface

Method used

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  • Ship high ampacity low surface temperature rise protective cable and manufacturing method thereof
  • Ship high ampacity low surface temperature rise protective cable and manufacturing method thereof
  • Ship high ampacity low surface temperature rise protective cable and manufacturing method thereof

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Effect test

Embodiment 1

[0020] Such as figure 1 As shown, the protective cable with high ampacity and low surface temperature rise of the ship of the present invention comprises the following steps in turn: uniformly extruding a high thermal resistance coefficient flame-retardant and refractory insulating layer 2 on the outer periphery of the stranded copper conductor 1; The outer periphery of the fire-resistant insulating layer 2 is covered with a filament glass fiber braided reinforcement layer 3 to form an insulated core of a power cable, and a plurality of insulated cores of a power cable are twisted together to form a core of a power cable. The gap between the insulated cores of a power cable Fill the high thermal resistance coefficient flame-retardant and fire-resistant filler core 4 to make the cable core round, wrap the high thermal resistance coefficient flame-retardant and fire-resistant longitudinal tape 5 on the outer periphery of the power cable core, and finally squeeze the high thermal ...

Embodiment 2

[0027] Such as figure 1 As shown, the protective cable with high ampacity and low surface temperature rise of the ship of the present invention comprises the following steps in turn: uniformly extruding a high thermal resistance coefficient flame-retardant and refractory insulating layer 2 on the outer periphery of the stranded copper conductor 1; The outer periphery of the fire-resistant insulating layer 2 is covered with a filament glass fiber braided reinforcement layer 3 to form an insulated core of a power cable, and a plurality of insulated cores of a power cable are twisted together to form a core of a power cable. The gap between the insulated cores of a power cable Fill the high thermal resistance coefficient flame-retardant and fire-resistant filler core 4 to make the cable core round, wrap the high thermal resistance coefficient flame-retardant and fire-resistant longitudinal tape 5 on the outer periphery of the power cable core, and finally squeeze the high thermal ...

Embodiment 3

[0034] Such as figure 1 As shown, the protective cable with high ampacity and low surface temperature rise of the ship of the present invention comprises the following steps in turn: uniformly extruding a high thermal resistance coefficient flame-retardant and refractory insulating layer 2 on the outer periphery of the stranded copper conductor 1; The outer periphery of the fire-resistant insulating layer 2 is covered with a filament glass fiber braided reinforcement layer 3 to form an insulated core of a power cable, and a plurality of insulated cores of a power cable are twisted together to form a core of a power cable. The gap between the insulated cores of a power cable Fill the high thermal resistance coefficient flame-retardant and fire-resistant filler core 4 to make the cable core round, wrap the high thermal resistance coefficient flame-retardant and fire-resistant longitudinal tape 5 on the outer periphery of the power cable core, and finally squeeze the high thermal ...

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Abstract

The invention relates to a ship and warship protection cable high in current carrying capacity and low in surface temperature rise and a manufacture method thereof. A flame-retardant fire-resistant insulating layer high in thermal resistivity evenly wraps a stranded copper conductor in an extruding mode. A filament glass fiber woven reinforcing layer wraps the flame-retardant fire-resistant insulating layer high in thermal resistivity so as to form an electric cable insulating wire core. A plurality of electric cable insulating wire cores are mutually stranded to form an electric cable core. Flame-retardant fire-resistant padding high in thermal resistivity is filled into clearance between the electric cable insulating wire cores so as to enable the cable core to be round and neat. A flame-retardant fire-resistant longitudinal wrapping band high in thermal resistivity wraps the electric cable core. A chemical cross-linked polyolefin inner protection sleeve high in thermal resistivity wraps the flame-retardant fire-resistant longitudinal wrapping band high in thermal resistivity in an extruding mode. An armoured braid layer wraps the inner protection sleeve. A chemical cross-linked polyolefin outer protection sleeve high in thermal resistivity wraps the armoured braid layer. The high protection cable can reduce the temperature of the outer wall of cables, and can be improved in current-carrying capacity on the condition that section areas of conductors are the same.

Description

technical field [0001] The invention relates to a power cable, in particular to a protective cable with high ampacity and low surface temperature rise for ships. The invention also relates to a manufacturing method of a protective cable with high ampacity and low surface temperature rise for ships. Background technique [0002] As the country pays more attention to the development and utilization of marine energy, a large number of new ships have been built. Since most of the ships sail in the open sea and spend a long time at sea, it is necessary to reduce the weight of the ship itself and increase the payload of the ship. As the power transmission equipment of the ship, the weight of the cable has a great influence on the load of the ship. The weight of the cable is related to the cross-sectional area of ​​the conductor, and the cross-sectional area of ​​the conductor is mainly determined by the current-carrying capacity. In addition to the conductor material and cross-se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B7/295H01B7/29H01B7/02H01B3/30H01B7/18H01B3/28H01B13/24
Inventor 李永江
Owner 江苏远桥电气科技有限公司