CN205810423U - A kind of intrinsic safety environment-friendly type composite screened control cable - Google Patents

Abstract

The utility model discloses a kind of intrinsic safety environment-friendly type composite screened control cable, it is characterized in that the conductor 1 in cable is single or is the many stranded compositions of tinned copper wire, conductor 1 extrudes elastic body insulated layer and constitutes insulated wire cores；By two to four insulated wire cores twisted synthesizing cable Component units cable cores；Unit cable core sets gradually the semiconductive belting layer of wrapped formation, tinned copper wire shielding internal layer and inner liner from inside to outside；Dredge in inner liner outside and constitute compound cable core around some insulated wire cores；Compound cable core sets gradually tinned copper wire screen layer, sealing coat, metal armor layers and the external sheath layer of wrapped formation from inside to outside.This utility model has excellent electric property and capability of electromagnetic shielding, it is adaptable to as electrical equipment control system connecting line under multiple occasion.

Description

A kind of intrinsic safety environment-friendly type composite screened control cable

Technical field

This utility model relates to a kind of electrical equipment and controls cable, and especially a kind of intrinsic safety environment-friendly type composite shielding controls Cable.

Background technology

Control the electrical connection that cable is mainly used between electrical equipment control loop, be used for transmitting various electric energy or control Signal, makes whole electrical system maintain safe and reliable operation.Along with the automaticity of electrical equipment is more and more higher, in recent years Coming, the pressure grade controlling cable in increasing occasion has reached 1000V level, and requires electrical instrumentation, automatically disguises The control cable of the connecting line between putting etc. has fire-retardant, high temperature resistant, environmental protection, softness, the characteristic such as anti-interference, should have excellent Electric property and mechanical performance.

Due to the raising of correlation technique condition, the structure design and material controlling cable is selected with common cable not The most same, needed for it, insulant should have higher proof voltage impact property, structurally guarantees that controlling cable has well Antistatic and the performance such as electromagnetic interference.Private cable the most not relevant in prior art.

Utility model content

This utility model is for avoiding the weak point existing for above-mentioned prior art, it is provided that a kind of have excellent electric Performance and capability of electromagnetic shielding, it is adaptable under multiple occasion, the intrinsic safety environment-friendly type as electrical equipment control system connecting line is combined Shielding controls cable.

This utility model adopts the following technical scheme that for solving technical problem

Being structurally characterized in that of this utility model intrinsic safety environment-friendly type composite screened control cable: the conductor in described cable is for single Root or be the many stranded compositions of tinned copper wire, extrudes elastic body insulated layer on described conductor and constitutes insulated wire cores；By two to four Root insulated wire cores twisted synthesizing cable Component units cable core；Described unit cable core sets gradually partly leading of wrapped formation from inside to outside Electricity belting layer, tinned copper wire shielding internal layer and inner liner；Dredge in described inner liner outside and constitute again around some insulated wire cores Close cable core；Described compound cable core sets gradually the tinned copper wire shield external layer of wrapped formation, sealing coat, metal from inside to outside Armor and external sheath layer.

The construction features of this utility model intrinsic safety environment-friendly type composite screened control cable lies also in: described belting layer is with Buddhist nun Dragon semi-conductive tape or non-woven fabrics semiconductive strip material put up wrapped formation, and rate of putting up is not less than 15%；Specific insulation is not more than 10⁵ Ω·cm。

The construction features of this utility model intrinsic safety environment-friendly type composite screened control cable lies also in: described inner liner is with Buddhist nun Dragon uses tubular type to extrude the tubular-shaped structures of process forming for material.

The construction features of this utility model intrinsic safety environment-friendly type composite screened control cable lies also in: described inner liner is with tin plating 0.1～0.2mm gap it is formed with between brass wire shielding internal layer.

Compared with the prior art, this utility model has the beneficial effect that:

1, this utility model has excellent electric property and capability of electromagnetic shielding, it is adaptable to as electrically under multiple occasion Equipment Control System connecting line；

2, using metal composite screen layer in this utility model, its shield effectiveness is good, is effectively increased its anti-tampering performance；

3, in this utility model, belting layer uses semiconductive strip material, on the one hand plays wrapping insulated wire cores, the opposing party Face serves the effect preventing insulating barrier from playing electrostatic, improves the electrical safety performance of cable；

4, this utility model inner liner uses nylon material, and its hardness is high and has certain pliability, on the one hand play every From effect, on the other hand play the effect of protected location core.

5, in this utility model, metal armor layers serves mechanical protection effect and antimagnetic interference effect.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation.

Label in figure: 1 conductor, 2 insulated wire cores, 3 unit cable cores, 4 belting layers, 5 tinned copper wire shielding internal layers, 6 inner liners, 7 are combined cable core, 8 tinned copper wire shield external layers, 9 sealing coats, 10 metal armor layers, 11 external sheath layers.

Detailed description of the invention

Seeing Fig. 1, in the present embodiment, the conductor 1 in intrinsic safety environment-friendly type composite screened control cable is single or is many platings The stranded composition of stannum copper wire, extrudes elastic body insulated layer on conductor 1 and constitutes insulated wire cores 2；Stranded by two to four insulated wire cores 2 Stranding Component units cable core 3；Unit cable core 3 sets gradually the semiconductive belting layer 4 of wrapped formation, tin-coated copper from inside to outside Silk shielding internal layer 5, inner liner 6；Dredge in inner liner 6 outside and constitute compound cable core 7 around some insulated wire cores 2；At composite rope The tinned copper wire shield external layer 8 of wrapped formation, sealing coat 9, metal armor layers 10 and oversheath is set gradually from inside to outside on core 7 Layer 11.

In being embodied as, belting layer 4 is to put up wrapped formation with nylon semi-conductive tape or non-woven fabrics semiconductive strip material, puts up Rate is not less than 15%, and specific insulation is less than 10⁵Ω cm, it can play the effect of wrapping insulated wire cores, also can prevent absolutely Edge layer produces electrostatic, improves the electrical safety performance of cable.

In being embodied as, inner liner 6 is the tubular-shaped structures extruding process forming with nylon for material employing tubular type, and with It is formed with 0.1～0.2mm gap between tinned copper wire screen layer 5, avoids in order to playing protected location cable core 3 when cable bend It is extruded.

Claims (4)

1. an intrinsic safety environment-friendly type composite screened control cable, is characterized in that the conductor (1) in described cable is single or for many The stranded composition of root tinned copper wire, extrudes elastic body insulated layer on described conductor (1) and constitutes insulated wire cores (2)；By two to four Insulated wire cores (2) twisted synthesizing cable Component units cable core (3)；Described unit cable core (3) sets gradually wrapped shape from inside to outside Semiconductive belting layer (4), tinned copper wire shielding internal layer (5) and the inner liner (6) become；In described inner liner (6) outside dredge around Some insulated wire cores (2) constitute compound cable core (7)；Described compound cable core (7) sets gradually wrapped formation from inside to outside Tinned copper wire shield external layer (8), sealing coat (9), metal armor layers (10) and external sheath layer (11).

Intrinsic safety environment-friendly type composite screened control cable the most according to claim 1, it is characterized in that described belting layer (4) be with Nylon semi-conductive tape or non-woven fabrics semiconductive strip material put up wrapped formation, and rate of putting up is not less than 15%；Specific insulation is not more than 10⁵Ω·cm。

Intrinsic safety environment-friendly type composite screened control cable the most according to claim 1, it is characterized in that described inner liner (6) be with Nylon is that material uses tubular type to extrude the tubular-shaped structures of process forming.

Intrinsic safety environment-friendly type composite screened control cable the most according to claim 3, is characterized in that described inner liner (6) and plating 0.1～0.2mm gap it is formed with between stannum brass wire shielding internal layer (5).