CN201302848Y - Insulated conductor - Google Patents

Abstract

The utility model discloses an insulated conductor, which comprises an electrifying conductor and an insulating layer which is sleeved outside the electrifying conductor, wherein a refractory layer is coated outside the insulating layer, which is an asbestos cloth layer. The insulated conductor has the advantages that the refractory layer which is further coated outside the insulating layer of the conductor can firstly improve the high-temperature resistance property of the conductor, delay the aging period of the insulating layer, and guarantee the use security of the conductor under worst working situations, and can secondly delay the normal working time of the conductor by the refractory layer when the outside is fired, and provide time for effective assistance. Since the cost of amianthine is low, the refractory layer can be an asbestos cloth layer, and can certainly use other fire-proof materials to prepare flame-proof outer layers, and the effect can be further reached.

Description

Insulated conductor

Technical field

The utility model relates to electric wire, especially relate to a kind of can resistant to elevated temperatures insulated conductor.

Background technology

Electric wire wears out or the too high wire short-circuiting that causes of temperature can cause fire, owing to after other reasons is on fire electric wire insulation layer burnt out and causes line fault, can add the conflagration the condition of a disaster, how can extending wire service time or after on fire, provide the long relief time, limit mitigation with maximum, conventional insulated electric conductor does not obviously reach this kind requirement.

The utility model content

The purpose of this utility model be to provide a kind of can high temperature resistant safer insulated conductor.

For achieving the above object, the utility model can be taked following technical proposals:

Insulated conductor described in the utility model comprises electrified wire and is placed in its outer insulating barrier that described insulating barrier is coated with flame retardant coating.

Described flame retardant coating is the asbestos layer of cloth.

Advantage of the present utility model is to be coated with flame retardant coating again outside the insulating barrier of lead, and the one, can improve the resistance to elevated temperatures of lead, delay the digestion period of insulating barrier, guarantee lead safe in utilization under bad working environments; The 2nd, when the external world caught fire, flame retardant coating can delay the normal working hours of lead, and giving effectively, relief provides the time.Because asbestos is cheap, flame retardant coating can be the asbestos cloth layer, can certainly make fire-resistant skin with other refractory materials, equally also can reach this kind effect.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

As shown in the figure, insulated conductor described in the utility model comprises electrified wire 1 and is placed in its outer insulating barrier 2 that described insulating barrier 2 is coated with flame retardant coating 3; Consider cost, described flame retardant coating 3 can be the asbestos cloth layer, and the fire-resistant skin that can certainly be made by other refractory materials equally also can play resistant to elevated temperatures safe effect.

Claims (2)

1, a kind of insulated conductor comprises electrified wire (1) and is placed in its outer insulating barrier (2) that it is characterized in that: described insulating barrier (2) is coated with flame retardant coating (3).

2, insulated conductor according to claim 1 is characterized in that: described flame retardant coating (3) is the asbestos layer of cloth.