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Copper-core silicon rubber insulation fire-resistant polyolefin jacket zero-halogen low-smoke flame-retardant electrical cable

A technology of silicone rubber insulation and polyolefin sheath, which is applied to insulated cables, power cables, rubber insulators, etc., can solve the problems of complex process structure, slow wrapping speed, low efficiency, etc., to achieve simple product process and reduce material consumption. , the effect of reducing the chance of quality problems

Active Publication Date: 2012-05-23
四川鑫电电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent still has not been able to completely overcome the defects of power cable breakdown due to moisture, complex process structure, slow wrapping speed, and low efficiency when using mica tape.

Method used

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  • Copper-core silicon rubber insulation fire-resistant polyolefin jacket zero-halogen low-smoke flame-retardant electrical cable
  • Copper-core silicon rubber insulation fire-resistant polyolefin jacket zero-halogen low-smoke flame-retardant electrical cable
  • Copper-core silicon rubber insulation fire-resistant polyolefin jacket zero-halogen low-smoke flame-retardant electrical cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a copper core silicone rubber insulated refractory polyolefin sheathed halogen-free low-smoke flame-retardant power cable, the cable includes a copper conductor 1, an insulating layer 2, a filling layer 3, and a cable wrapping from the inside to the outside. 4 and refractory sheath 5; wherein there are five conductors 1, and each one has exactly the same diameter. The insulating layer 2 is tightly attached to the outside of each conductor 1 to cover the conductor 1, and the cable wrapping 4 covers the conductor 1 and the insulating layer 2; the gap between the cable wrapping 4 and the insulating layer 2 is filled Layer 3; close to the cabled wrap 4 and covered with a refractory sheath 5 . The insulating layer 2 is made of silicone rubber insulating material. The short-term temperature resistance of silicone rubber can reach 350°C, and it has excellent insulation properties. After burning, silicone rubber can form a ceramic-like structure and...

Embodiment 2

[0027] Such as figure 1 As shown, a copper core silicone rubber insulated fire-resistant polyolefin sheathed halogen-free low-smoke flame-retardant fire-resistant power cable, the cable includes a copper conductor 1, an insulating layer 2, a filling layer 3, and a cabled winding from the inside to the outside. Package 4 and refractory sheath 5; there are five conductors 1, and each one has exactly the same diameter. The insulating layer 2 is close to the outside of each conductor 1 to cover the conductor 1, and the cable wrapping 4 covers the conductor 4 and the insulating layer 2; the gap between the cable wrapping 4 and the insulating layer 2 is filled Layer 3; close to the cabled wrap 4 and covered with a refractory sheath 5 . The insulating layer 2 is made of silicone rubber insulating material. The short-term temperature resistance of silicone rubber can reach 350°C, and it has excellent insulation properties. After burning, silicone rubber can form a ceramic-like struc...

Embodiment 3

[0030] Such as figure 2 As shown, a copper core silicone rubber insulated refractory polyolefin sheathed halogen-free low-smoke flame-retardant power cable, the cable includes a copper conductor 1, an insulating layer 2, a filling layer 3, and a cable wrapping from the inside to the outside. 4 and refractory sheath 5; wherein there are four conductors 1, one of which has a diameter smaller than that of the other three. The insulating layer 2 is close to the outside of each conductor 1 to cover the conductor 1, and the cable wrapping 4 covers the conductor 4 and the insulating layer 2; the gap between the cable wrapping 4 and the insulating layer 2 is filled Layer 3; close to the cabled wrap 4 and covered with a refractory sheath 5 . The insulating layer 2 is made of silicone rubber insulating material. The short-term temperature resistance of silicone rubber can reach 350°C, and it has excellent insulation properties. After burning, silicone rubber can form a ceramic-like s...

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PUM

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Abstract

The invention discloses a copper-core silicon rubber insulation fire-resistant polyolefin jacket zero-halogen low-smoke flame-retardant electrical cable, which comprises at least one conductor (1), an insulating layer (2), a padding layer (3), a cable packaging layer (4) and a fire-resistant jacket (5), from inside to outside. The insulating layer (2) tightly clings outside of each conductor (1) to wrap the conductor (1). The cable packaging layer (4) wraps the conductor (1) and the insulating layer (2). The padding layer (3) is disposed on the clearance part between the cable packaging layer(4) and the insulating layer (2). The fire-resistant jacket (5) is wrapped outside the cable packaging layer (4). The invention has the advantages that the designed flame-retardant electrical cable with zero-halogen low-smoke flame-retardant structure totally meets the flame-retardant demand, the producing process is simple, a flame-retardant mica layer and a strengthening layer are omitted compared with current cable for flame-retardant fixing wire, the producing processes are decreased and the producing efficiency is greatly promoted.

Description

technical field [0001] The invention relates to a power cable, in particular to a copper-core silicon rubber insulated fire-resistant polyolefin sheathed halogen-free low-smoke flame-retardant power cable. Background technique [0002] With the development of society and the advancement of science and technology, many power plants, metallurgical enterprises, and petrochemical enterprises are developing towards large-scale groups. High-rise buildings, public entertainment venues, subways and underground streets are constantly emerging, and their power consumption is increasing day by day. Variety and consumption also increased accordingly. Wires and cables can not only transmit and distribute power and transmit information, but also are the "fuse" that can easily cause fires. Ordinary cables, however, cannot carry electricity while the cable burns in an actual fire. However, in the event of a fire in many important occasions, personnel evacuation, passageway lighting, fire ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B7/295H01B3/28
Inventor 魏英罗建华崔天峰毛传岚李准张惠恩杨旭王丹丹
Owner 四川鑫电电缆有限公司