CN205920788U

CN205920788U - Mineral insulated cable

Info

Publication number: CN205920788U
Application number: CN201620445378.7U
Authority: CN
Inventors: 叶明高; 朱成颍; 汤健
Original assignee: ANHUI NANYANG CABLE Co Ltd
Current assignee: ANHUI NANYANG CABLE Co Ltd
Priority date: 2016-05-17
Filing date: 2016-05-17
Publication date: 2017-02-01
Anticipated expiration: 2026-05-17

Abstract

The utility model discloses a mineral insulated cable, it includes the outside six layer wrap -around oversheaths of electric cable core and electric cable core. Six layers the oversheath is non -woven fabrics band layer fire -retardant layer, iron shielded layer, copper restrictive coating and low smoke and zero halogen polyethylene outer jacket in, from inside to outside in proper order, electricity cable core includes insulation core and shellproof silk, insulation core includes conductor, fire -resistant mica layer, magnesium oxide insulating layer, the conductor outside sets up fire -resistant mica layer, the outside cladding magnesium oxide insulating layer in fire -resistant mica layer, the multiunit insulation core is around the even crowded package of shellproof silk in non -woven fabrics band in situ portion, clearance part between non -woven fabrics band layer and the electric cable core still is equipped with the mineral substance filling layer. The utility model discloses a mineral substance filling layer plays fabulous thermal -insulated, fire prevention, multiple action such as fire -retardant and insulating, and insulation core is inside simultaneously is equipped with shellproof silk and increases the soft of cable and tensile characteristic.

Description

A kind of mineral insulated cable

Technical field

This utility model is related to field of cables, more particularly, to a kind of mineral insulated cable.

Background technology

Mineral insulated cable is primarily used for mine mobile electrical equipment, mining machinery, handling machinery and mineral The power delivery of the equipment mechanisms such as transport, production and processing, signal control, safety ground etc..And mineral insulated cable working environment More severe compared with other cables, cable needs tension, anti-corrosion, insulating properties are higher；Insulating barrier just occurs during little damage simultaneously The security performance that whole cable can be led to declines, and potential safety hazard easily without timely discovery.

Utility model content

The purpose of this utility model is that and provides to solve the above problems that a kind of structure is simple, fire retardant performance High, be easily installed, the mineral insulated cable of life-span length.

To achieve these goals, this utility model is achieved through the following technical solutions: a kind of mineral insulated cable, It includes six layers of oversheath of cladding outside cable core and cable core；Six layers of described oversheath are followed successively by no from inside to outside Spin cloth belting layer, interior flame-retardant layer, metal screen layer, copper sheath layer and low smoke and zero halogen outer protective polyethylene layer；Described cable core Including insulated wire cores and anti-elater；Described insulated wire cores include conductor, fireproof mica layer, magnesium oxide insulated layer；Described conductor Outside setting fireproof mica layer；The outside coated magnesium oxide insulating barrier of described fireproof mica layer；Multigroup described insulated wire cores are around anti- Elater is uniformly extruded in inside non-woven fabrics belting layer；Gap portion between described non-woven fabrics belting layer and cable core is additionally provided with Mineral-filled layer.

Further, described conductor is formed by multiply rare earth aluminium alloy aluminium wire is stranded.

Further, described anti-elater is made using polyaryl fiber.

Further, described anti-elater middle position is additionally provided with strengthening core, and described strengthening core is twisted by multigroup carrying steel core Conjunction forms.

Further, described mineral-filled layer is provided with reinforcement rope, and described rope of strengthening is fiberglass braided rope, and It is blended with steel wire in fiberglass braided rope.

The beneficial effects of the utility model are: this utility model structure is simple, reasonable in design, filling mineral matter packed layer rises To multiple actions such as fabulous heat-insulated, fire prevention, fire-retardant and insulation, be provided with anti-elater inside insulated wire cores increases cable simultaneously Softness and tensile characteristics, the strengthening core being provided with anti-elater more strengthens the adaptedness to environment for the cable.

Brief description

Fig. 1 is this utility model structural representation.

Specific embodiment

The utility model is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not constitute to this reality With new any restriction.

Refer to shown in Fig. 1, this utility model provides a kind of a kind of mineral insulated cable of technical scheme, and it includes cable Six layers of oversheath of cladding outside core and cable core；Six layers of oversheath are followed successively by non-woven fabrics belting layer 5, internal resistance from inside to outside Combustion layer 4, metal screen layer 3, copper sheath layer 2 and low smoke and zero halogen outer protective polyethylene layer 1；Cable core include insulated wire cores and Anti- elater 6；Anti- elater 6 is made using polyaryl fiber, and anti-elater 6 middle position is additionally provided with strengthening core 7, and strengthening core 7 is by multigroup Carry that steel core is stranded forms, being provided with anti-elater 6 inside insulated wire cores increases softness and the tensile characteristics of cable, sets in anti-elater 6 Some strengthening cores 7 more strengthen the adaptedness to environment for the cable.

Insulated wire cores include conductor 8, fireproof mica layer 9, magnesium oxide insulated layer 10；Conductor 8 is by multiply rare earth aluminium alloy aluminum Silk is stranded to be formed, the more common aluminium conductor of rare earth aluminum alloy conductor 8 or copper conductor have preferable tensile property, creep-resistant property with And elongation percentage is so that cable is easily installed shock resistance height, reduces potential safety hazard.

The outside setting fireproof mica layer 9 of conductor 8；The outside coated magnesium oxide insulating barrier 10 of fireproof mica layer 9；Multigroup covered wire Core is uniformly extruded in inside non-woven fabrics belting layer 5 around anti-elater 6；Clearance portion between non-woven fabrics belting layer 5 and cable core Point it is additionally provided with mineral-filled layer 11, mineral-filled layer 11 plays many recasts such as fabulous heat-insulated, fire prevention, fire-retardant and insulation With；Mineral-filled layer 11 is provided with reinforcement rope 12, and described rope 12 of strengthening is fiberglass braided rope, and fiberglass braided rope Inside it is blended with steel wire, improve the security performance of cable when fire occurs it is ensured that cable being capable of normal work.

Embodiment provided above is better embodiment of the present utility model, is only used for convenient explanation this utility model, and Non- this utility model is made with any pro forma restriction, any those of ordinary skill in the art, if without departing from In the range of the carried technical characteristic of this utility model, using locally changing done by this utility model disclosed technology content or repair The Equivalent embodiments of decorations, and without departing from technical characteristic content of the present utility model, all still fall within this utility model technical characteristic In the range of.

Claims

1. a kind of mineral insulated cable, it includes six layers of oversheath of cladding outside cable core and cable core, its feature Be: six layers of described oversheath be followed successively by from inside to outside non-woven fabrics belting layer, interior flame-retardant layer, metal screen layer, copper sheath layer with And low smoke and zero halogen outer protective polyethylene layer；Described cable core includes insulated wire cores and anti-elater；Described insulated wire cores include leading Body, fireproof mica layer, magnesium oxide insulated layer；Setting fireproof mica layer outside described conductor；Cladding outside described fireproof mica layer Magnesium oxide insulated layer；Multigroup described insulated wire cores are uniformly extruded in inside non-woven fabrics belting layer around anti-elater；Described non-woven fabrics Gap portion between belting layer and cable core is additionally provided with mineral-filled layer.

2. a kind of mineral insulated cable according to claim 1 it is characterised in that: described conductor is by multiply rare earth aluminium alloy Aluminium wire is stranded to be formed.

3. a kind of mineral insulated cable according to claim 1 it is characterised in that: described anti-elater adopt polyaryl fiber Make.

4. a kind of mineral insulated cable according to claim 1 it is characterised in that: described anti-elater middle position is additionally provided with Strengthening core.

5. a kind of mineral insulated cable according to claim 4 it is characterised in that: described strengthening core is by multigroup carrying steel core Stranded form.

6. a kind of mineral insulated cable according to claim 1 it is characterised in that: described mineral-filled layer be provided with plus Qiang Sheng.

7. a kind of mineral insulated cable according to claim 6 it is characterised in that: described rope of strengthening is for fiberglass braided It is blended with steel wire in rope, and fiberglass braided rope.