CN203689970U

CN203689970U - Marine waterproof fireproof instrument cable

Info

Publication number: CN203689970U
Application number: CN201320859508.8U
Authority: CN
Inventors: 王晓强
Original assignee: JIANGSU JINNIU WIRES AND CABLES GROUPS CO Ltd
Current assignee: JIANGSU JINNIU WIRES AND CABLES GROUPS CO Ltd
Priority date: 2013-12-24
Filing date: 2013-12-24
Publication date: 2014-07-02
Anticipated expiration: 2023-12-24

Abstract

The utility model relates to a marine waterproof fireproof instrument cable, comprising a cable core and a flame-retardant polyolefin outer sheath; wherein the cable core consists of at least two core wire twisting groups, the each core wire twisting group consists of two core wires which are intertwisted with each other and provided with insulating layers, a branch shielding layer is wrapped outside the two core wires intertwisted with each other, a first glass fibre non-woven fabrics layer is wrapped outside the cable core, a total shielding layer is wrapped outside the first glass fibre non-woven fabrics layer, a second glass fibre non-woven fabrics layer is wrapped outside the total shielding layer, fireproof mud is filled between the core wires in the core wire twisting group, between the core wire twisting groups as well as between the cable core and the first glass fibre non-woven fabrics layer, and the flame-retardant polyolefin outer sheath is wrapped on the second glass fibre non-woven fabrics layer. The marine waterproof fireproof instrument cable of the utility model has the beneficial effects that: the glass fibre non-woven fabrics layer not only has fireproofness, but also can prevent dropping of the fireproof mud, so as to improve a fireproof performance; in addition, the fireproof mud still can effectively wrap the cable core therein after the outer sheath and so on are burnt out, thereby preventing short circuit caused by moisture.

Description

Water-and fire-proof instrument cable peculiar to vessel

Technical field

The utility model relates to a kind of water-and fire-proof instrument cable peculiar to vessel.

Background technology

Instrument cable is mainly used for electronic computer system, monitoring loop, signal transmission and the detecting instrument of automation control system, Instrument connection connecting line, must there is fire-resistant performance for special occasions as the instrument cable in fire-fighting place, cable fire layer is in the past that mica tape is overlapping wrapped, due to the complex procedures of instrument cable, operation in process of production increases and can produce structural deterioration to wrapped mica fireprotection layer, in production technology, be not easy to reach fire-resistant requirement, simultaneously because mica tape is that sheet is bonding, after burning, easily embrittlement comes off, greatly reduce its fire-resistant effect.

Utility model content

Technical problem to be solved in the utility model is: a kind of water-and fire-proof instrument cable peculiar to vessel is provided, reaches the requirement of category-A fire resistance test, and the pernicious gas that when burning produces is few, still has certain water resistance after overdoing.

The utility model solves the technical scheme that its technical problem adopts: a kind of water-and fire-proof instrument cable peculiar to vessel, comprise cable core and fire retardant polyolefin oversheath, cable core is made up of at least two heart yearn strand groups, every heart yearn strand group is made up of the heart yearn of two mutual stranded tape insulation layers, two mutual stranded heart yearn outer wrapping sub-shields, at cable core outer wrapping the first glass fibre non-woven layer, at the total screen of the first glass fibre non-woven layer outer wrapping, at total screen outer wrapping the second glass fibre non-woven layer, between heart yearn in heart yearn strand group, between heart yearn strand group and between cable core and the first glass fibre non-woven layer, fill anti-chamotte, fire retardant polyolefin oversheath is wrapped on the second glass fibre non-woven layer.

Insulating barrier is ceramic silicone rubber insulation layer.

Wrapped ceramic silicon rubber composite band outside the second glass fibre non-woven layer.

The beneficial effects of the utility model are: glass fibre non-woven layer is in fire-resistant, can also prevent that anti-chamotte from coming off, improve fire resistance, anti-chamotte outside the afterburnt such as sheath of layer still can effectively wrap up inner cable core, prevent the short circuit that moisture content causes, fire retardant polyolefin oversheath good flame retardation effect, the pernicious gas that burning produces is few, this instrument cable can pass through category-A fire resistance test, and structural strength is high, and tensile property is good.

Accompanying drawing explanation

Fig. 1 structural representation of the present utility model;

In figure: 1. fire retardant polyolefin oversheath; 2. heart yearn strand group; 3. heart yearn; 4. sub-shield; 5. the first glass fibre non-woven layer, 6. total screen, 7. the second glass fibre non-woven layer, 8. anti-chamotte, 9. ceramic silicon rubber composite band.

Embodiment

As shown in Figure 1, a kind of water-and fire-proof instrument cable peculiar to vessel, comprise cable core and fire retardant polyolefin oversheath 1, cable core is made up of at least two heart yearn strand groups 2, every heart yearn strand group 2 is made up of the heart yearn 3 of two mutual stranded tape insulation layers, two mutual stranded heart yearn 3 outer wrapping sub-shields 4, at cable core outer wrapping the first glass fibre non-woven layer 5, at the total screen 6 of the first glass fibre non-woven layer 5 outer wrapping, at total screen 6 outer wrapping the second glass fibre non-woven layers 7, between heart yearn 3 in heart yearn strand group 2, between heart yearn strand group 2 and between cable core and the first glass fibre non-woven layer 5, fill anti-chamotte 8, fire retardant polyolefin oversheath 1 is wrapped on the second glass fibre non-woven layer 7.

Insulating barrier is ceramic silicone rubber insulation layer.

In the outer wrapped ceramic silicon rubber composite band 9 of the second glass fibre non-woven layer 7.

Claims

1. a water-and fire-proof instrument cable peculiar to vessel, it is characterized in that: comprise cable core and fire retardant polyolefin oversheath (1), described cable core is made up of at least two heart yearn strand groups (2), every heart yearn strand group (2) is made up of the heart yearn (3) of two mutual stranded tape insulation layers, in two mutual stranded heart yearns (3) outer wrapping sub-shields (4), at cable core outer wrapping the first glass fibre non-woven layer (5), at the first total screen of glass fibre non-woven layer (5) outer wrapping (6), at total screen (6) outer wrapping the second glass fibre non-woven layer (7), between heart yearn (3) in heart yearn strand group (2), between heart yearn strand group (2) and between cable core and the first glass fibre non-woven layer (5), fill anti-chamotte (8), fire retardant polyolefin oversheath (1) is wrapped on the second glass fibre non-woven layer (7).

2. water-and fire-proof instrument cable peculiar to vessel according to claim 1, is characterized in that: described insulating barrier is ceramic silicone rubber insulation layer.

3. water-and fire-proof instrument cable peculiar to vessel according to claim 1, is characterized in that: wrapped ceramic silicon rubber composite band (9) outside the second described glass fibre non-woven layer (5).