ES2303445A1

ES2303445A1 - Electrical safety cables that incorporate a luminescent pigment (Machine-translation by Google Translate, not legally binding)

Info

Publication number: ES2303445A1
Application number: ES200601582A
Authority: ES
Inventors: Luis Santos; Fco. Jose Martinez; Javier Barbeta; Daniel Calveras
Original assignee: Grupo General Cable Sistemas SA
Current assignee: Grupo General Cable Sistemas SA
Priority date: 2005-06-24
Filing date: 2005-06-24
Publication date: 2008-08-01
Anticipated expiration: 2025-06-24
Also published as: ES2303445B1

Abstract

Safety electrical cables incorporating a luminescent pigment for transmission of electricity or data which are characterized in that they comprise a cover and/or insulation having a fluorescent pigment which, when irradiated with ultraviolet light in the range of 400-500 nm, emits a visible light by fluorescent effect. The pigment is a colorless fluorescent optical whitener selected from the group consisting of bis-benzoxazoles, bis- (steryl) biphenyls and phenylcoumarins. This light emission can be used to identify a particular type of cable, for example a zero halogen security cable, which can be difficult to identify a priori because it is located in a hidden place or forming part of a cluster, etc. (Machine-translation by Google Translate, not legally binding)

Description

Cables eléctricos de seguridad que incorporan un pigmento luminiscente.Electrical safety cables that incorporate a luminescent pigment

Field of the Invention

La presente invención se refiere a cables eléctricos, en particular a cables eléctricos que comprenden una cubierta y/o aislamiento, y más en particular a cables eléctricos de seguridad que incorporan un pigmento luminiscente en su cubierta y/o aislamiento, de manera que emiten una luz visible por efecto fluorescente al ser irradiados con luz ultravioleta, lo que permite distinguirlos de otros tipos de cables.The present invention relates to cables electrical, in particular to electrical cables comprising a cover and / or insulation, and more particularly to electrical cables of security that incorporate a luminescent pigment in its cover and / or insulation, so that they emit a visible light by effect fluorescent when irradiated with ultraviolet light, which allows distinguish them from other types of cables.

Description

Los cables eléctricos son un componente ampliamente utilizado en cualquier tipo de construcción, y cuyo objeto es el de transmitir energía eléctrica o datos de un lugar a otro. En los últimos anos, se ha venido desarrollando una especialización en la tipología de los cables existentes, de modo que es posible encontrar cables con distintos grados de seguridad, en función del lugar donde van a ser instalados. En particular, existe un tipo de cables, los cables de seguridad con cero contenido en halógenos (denominados de aquí en adelante como "cables cero halógenos"), los cuales cumplen con unos determinados estándares de seguridad elevados. Obviamente, existe una necesidad de identificar dichos cables de otros cables posibles instalados. Sin embargo, esto es difícil, puesto que una vez en su ubicación, la identificación de los cables depende fundamentalmente de localizar la marca de cubierta que habitualmente llevan incorporada, la cual con frecuencia es difícil de encontrar por diversas razones, entre las cuales se encuentran la dificultad de acceder al lugar de ubicación de los cables, la multitud de cables que suelen ir juntos formando un racimo, etc.Electric cables are a component widely used in any type of construction, and whose object is to transmit electrical energy or data from one place to other. In recent years, a specialization in the type of existing cables, so that it is possible to find cables with different degrees of safety, depending on where they are going to be installed. In particular, There is one type of cables, safety cables with zero halogen content (hereinafter referred to as "zero halogen cables"), which comply with some certain high safety standards. Obviously there is a need to identify said cables from other possible cables installed. However, this is difficult, since once in your location, the identification of the cables depends fundamentally of locating the cover mark that they usually carry built-in, which is often hard to find by various reasons, among which are the difficulty of access the location of the cables, the multitude of cables that usually go together forming a cluster, etc.

Este problema es resuelto por el cable de la invención, el cual lleva, en su material de cubierta y/o aislamiento de material plástico un pigmento luminiscente, concretamente fluorescente, sensible a la luz ultravioleta. Al hacer incidir luz ultravioleta sobre la superficie de los compuestos de cubierta y/o aislamiento, el pigmento luminiscente emite una luz visible por efecto fluorescente. Esta luz identifica el cable, de manera que, si se ha determinado su incorporación al tipo de cables de seguridad cero halógenos, la luz visible emitida identificará a dichos cables como cables del tipo indicado.This problem is solved by the cable of the invention, which carries, in its cover material and / or plastic material insulation a luminescent pigment, specifically fluorescent, sensitive to ultraviolet light. When doing influence ultraviolet light on the surface of the compounds of cover and / or insulation, the luminescent pigment emits a light visible by fluorescent effect. This light identifies the cable, from so that, if its incorporation into the type of cables has been determined zero safety halogen, the visible light emitted will identify said cables as cables of the indicated type.

El pigmento luminiscente incorporado es concretamente un blanqueante óptico fluorescente que, en solución o aplicado a un sustrato, absorbe luz ultravioleta y reemite la mayor parte de la energía absorbida como luz azul fluorescente entre 400-500 nm. Ejemplos de agentes blanqueantes utilizados son los de tipo bis-benzoxazolas y bis-(esteril)bifenilos (®Uvitex de Ciba) y fenilcoumarins (®Blankophor de Bayer).The incorporated luminescent pigment is specifically a fluorescent optical brightener that, in solution or applied to a substrate, absorbs ultraviolet light and re-emits the greatest part of the energy absorbed as fluorescent blue light between 400-500 nm. Examples of bleaching agents used are those of bis-benzoxazole type and bis- (sterile) biphenyls (® Ciba Uvitex) and phenylcoumarins (®Blankophor of Bayer).

La adición del pigmento luminiscente puede realizarse en el proceso de elaboración del compuesto o "compounding", en el proceso de extrusión del cable conjuntamente con el color (en forma de másterbatch) o pintado sobre la superficie del mismo una vez extruido (en forma de pintura). En el primer caso, el pigmento estará distribuido por todo el grosor de la cubierta y/o aislamiento del cable, mientras que en el segundo y tercer casos, estará distribuido únicamente por la superficie exterior de la cubierta y/o aislamiento.The addition of the luminescent pigment can be carried out in the process of making the compound or "compounding" in the cable extrusion process in conjunction with the color (in the form of a masterbatch) or painted on its surface once extruded (in the form of paint). In In the first case, the pigment will be distributed throughout the thickness of the cover and / or insulation of the cable, while in the second and third cases, will be distributed only by the outer surface of the roof and / or insulation.

De esta manera, la invención permite identificar los cables cero halógenos una vez instalados sin tener que buscar la marca de cubierta. Otra ventaja de este tipo de cables es que se garantiza la trazabilidad del cable instalado.In this way, the invention allows to identify Zero halogen wires once installed without having to search The cover brand. Another advantage of this type of cables is that it guarantees the traceability of the installed cable.

Claims

1. Cable for transmission of electricity or data characterized in that it comprises a cover and / or insulation comprising a fluorescent pigment which, when irradiated with ultraviolet light, emits a visible light by fluorescent effect.

2. Cable according to claim 1, characterized in that the pigment is a colorless fluorescent optical brightener.

3. Cable according to any of claims 1 or 2, characterized in that the pigment is selected from the group consisting of bis-benzoxazoles, bis- (sterile) biphenyls and phenylcoumarins.

4. Cable according to any of the preceding claims, characterized in that the visible light emitted by fluorescent effect is blue light in the range of 400-500 nm.

5. Cable according to any of the preceding claims, characterized in that the pigment is distributed throughout the thickness of the shell and / or insulation.

6. Cable according to any of claims 1-3, characterized in that the pigment is distributed only over the surface of the cover and / or insulation.

7. Cable according to any of the preceding claims, characterized in that the emission of visible light by fluorescent effect identifies a particular type of cable.

8. Cable according to claim 6, characterized in that the particular cable type identified is a halogen zero type safety cable.