Verfahren zur Überwachung des Zustands einer Kabelleitungverbindung und Vorrichtung zur Überwachung einer Kabelleitungverbindung

Details

Veröffentlichungs-Nr.

EP4807335

Anmeldetag

9. März 2025

Veröffentlichung

16. September 2026

Rechtsraum

EP

IPC

G01M3/18, G01M3/28

Abstract

A method for monitoring of condition of a cable conduit fitting comprising the following steps: detecting (101A1) values of relative concentration of gas with variable concentration Rxin(i) inside a cable conduit fitting (1) in a preset time window and creating (102A1) time series of the values of relative concentration of gas with variable concentration Rxin(i) inside the cable conduit fitting (1), wherein each of said values has an assigned timestamp or each of said values is detected (101A1) with a predefined sampling rate, where i = (1,2, ...,n); detecting (101A2) values of relative concentration of gas with variable concentration Rxout(i) outside the cable conduit fitting (1) in the preset time window and creating (102A2) time series of the values of relative concentration of gas with variable concentration Rxout(i) outside the cable conduit fitting (1), wherein each of said values has an assigned timestamp or each of said values is detected (101A2) with the predefined sampling rate, where i = (1, 2, ... , n); wherein the detection (101A1) of the values of relative concentration of gas with variable concentration Rxin(i) inside the cable conduit fitting (1) and the detection (101A2) of the values of relative concentration of gas with variable concentration Rxout(i) outside the cable conduit fitting (1) is synchronized; determining (109) a correlation coefficient based on the values of relative concentration of gas with variable concentration Rxin(i) inside the cable conduit fitting (1) from the created (102A1) time series and on the values of relative concentration of gas with variable concentration Rxout(i) outside the cable conduit fitting (1) from the created (102A2) time series, where i = (1,2, ...,n); assessing (110) condition of the cable conduit fitting (1) by comparing the determined (109) correlation coefficient to a threshold value such that when said correlation coefficient exceeds the threshold value, the cable conduit fitting (1) is considered non-hermetic.

Anmelder

Firma

ABB Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete