CN208240393U - High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable - Google Patents

Abstract

The utility model discloses a kind of High-strength environmentally-friefuran flexible mineral insulation fire-resisting cables, including a plurality of conducting wire and the surrounding layer being coated on outside a plurality of conducting wire, the every conducting wire includes copper core and the insulating layer that is coated on outside the copper core, the insulating layer is the Mica tape layer of multilayered structure, the surrounding layer is followed successively by glass cloth belting layer, argon arc welding embossing copper strips restrictive coating and Ceramic silicon rubber external sheath layer from inside to outside, is equipped with the glass fibre gasket for packing being placed in outside a plurality of conducting wire in the glass cloth belting layer.The utility model provides that a kind of pliability is higher, and heat-resisting, fire resisting, thermal shock resistance are stronger, and processing laying is easier, safer environmental protection, the longer high-strength environment-friendly mineral insulation fire-resisting cable of continuous production length.

Description

High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable

Technical field

The utility model relates to a kind of mineral insulation fire-resisting cable more particularly to a kind of High-strength environmentally-friefuran flexible mineral are exhausted Edge fire-resisting cable.

Background technique

Conventional mineral insulated flame-resistant cable usually by copper conductor, mineral insulation (magnesia), glass cloth tape are wrapped, fire-retardant fill out Rope filling, copper sheath, low-smoke halogen-free polyolefin oversheath composition are filled, although burning is occurring in conventional mineral insulated cable In the case of, the burning of flame can be strongly blocked, is kept for route certain time fire integrality, but conventional mineral insulated cable belongs to just Property cable, not flexible, processing laying is difficult, construction cost is high, while insulating materials magnesia easy to absorb moisture, insulation performance compared with Low, filling and band material have certain halogen, and when burning can discharge certain poison gas smoke pollution environment, low-smoke halogen-free polyolefin Oversheath heat resisting temperature is general, 150 ° of heat resisting temperature highest, does not have thermal shock resistance, and continuous production length is short, and connector is more, Production and construction cost are higher, therefore have certain limitation in actual use.

Utility model content

The purpose of this utility model is that solve the above-mentioned problems and provides a kind of High-strength environmentally-friefuran flexible mineral Insulated flame-resistant cable.

The utility model achieves the above object through the following technical schemes:

A kind of High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable, including a plurality of conducting wire and it is coated on a plurality of described lead Surrounding layer outside line, the every conducting wire include copper core and the insulating layer that is coated on outside the copper core, and the insulating layer is The Mica tape layer of multilayered structure, the surrounding layer are followed successively by glass cloth belting layer, argon arc welding embossing copper strips shield from inside to outside Jacket layer and Ceramic silicon rubber external sheath layer, the glass cloth belting layer is interior to be equipped with the glass fibre being placed in outside a plurality of conducting wire Gasket for packing.

Preferably, the purity of the copper core is not less than 99.95%.

The utility model has the beneficial effects that:

The utility model provides that a kind of pliability is higher, and heat-resisting, fire resisting, thermal shock resistance are stronger, and processing laying is more held Easily, safer environmental protection, the longer high-strength environment-friendly mineral insulation fire-resisting cable of continuous production length；Specific advantage is as follows:

1, insulation uses inorganic mineral Mica tape, and cable insulation is made to have good insulating properties, flame resistance, fire resisting Property and resistance to acid and alkali；

2, glass cloth belting layer and glass fibre gasket for packing make cable have good flame resistance and fire resisting, while more traditional Fire-retardant band and gasket for packing are halogen-free, and meet RoHs environmental protection standard, make cable with more the feature of environmental protection；

3, the surface of argon arc welding embossing copper strips restrictive coating becomes spiral shape, keeps cable more soft pliable bent, can improve Processing and laying difficulty, increase continuous production length, and expanding production range reduces cable connector；And metal enclosed sheath is used, Improve cable fire；

4, Ceramic silicon rubber external sheath layer makes to protect heat-resisting up to 200 DEG C of (traditional low-smoke halogen-free polyolefins outside cable Heat-resisting 150 DEG C of oversheath highest), refractory temperature enhances cable heat resistance, fire resisting up to 3000 DEG C (1200 DEG C of traditional refractory temperature) Property, thermal-shock resistance (firm ceramic case is formed when high temperature).

Detailed description of the invention

Fig. 1 is the radial section sectional structure of High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable described in the utility model Schematic diagram.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing:

As shown in Figure 1, High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable described in the utility model includes a plurality of conducting wire And it is coated on the surrounding layer outside a plurality of (this example the is three) conducting wire, the every conducting wire includes copper core 1 and is coated on Insulating layer 2 outside copper core 1, the purity of copper core 1 are not less than 99.95%, and insulating layer 2 is the Mica tape of multilayered structure Layer, the surrounding layer are followed successively by glass cloth belting layer 4, argon arc welding embossing copper strips restrictive coating 5 and Ceramic silicon rubber from inside to outside External sheath layer 6, glass cloth belting layer 4 is interior to be equipped with the glass fibre gasket for packing 3 being placed in outside a plurality of conducting wire.

High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable processing described in the utility model can be carried out by following technique: 8mm glitter copper lever → wire drawing and annealing → core is twisted → multilayer mica tape lapped insulation → insulated wire cores stranding → argon arc welding embossing Copper sheath → Ceramic silicon rubber sheath → exfactory inspection → packaging factory.

Above-described embodiment is the preferred embodiment of the utility model, is not the limit to technical solutions of the utility model System, as long as being regarded as falling into without the technical solution that creative work can be realized on the basis of the above embodiments In the rights protection scope of the utility model patent.

Claims (2)

1. a kind of High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable, including a plurality of conducting wire and it is coated on a plurality of conducting wire Outer surrounding layer, the every conducting wire include copper core and the insulating layer that is coated on outside the copper core, it is characterised in that: described Insulating layer is the Mica tape layer of multilayered structure, and the surrounding layer is followed successively by glass cloth belting layer from inside to outside, argon arc welding is rolled Line copper strips restrictive coating and Ceramic silicon rubber external sheath layer, interior be equipped with of the glass cloth belting layer are placed in outside a plurality of conducting wire Glass fibre gasket for packing.

2. High-strength environmentally-friefuran flexible mineral insulation fire-resisting cable according to claim 1, it is characterised in that: the copper core The purity of line is not less than 99.95%.