Device for rapidly detecting water seepage of cable and detection method thereof

Abstract

The invention relates to the technical field of optical manufacturing and detection, in particular to a device for rapidly detecting water seepage of a cable and a detection method thereof. The device comprises a water groove; a conversion device is arranged in the water groove; one end of the conversion device is connected with a vacuum pneumatic pump through an air path pipeline, and the other end of the conversion device is connected with a cable to the detected; a pneumatic regulating valve and an air pressure gauge are arranged on an outlet pipeline of the vacuum pneumatic pump. The detection method comprises the following steps: soaking the cable to be detected into water, and taking the cable out one minute later; soaking one end of the cable into water, and applying vacuum air pressure of 1-100KPa to the other end of the cable; observing whether air bubbles leak out of one end which is soaked into water of the cable within 1-5 minutes. According to the method for detecting water seepage of the cable by using the device, the water seepage of the cable is detected by adopting air pressure instead of water pressure, and the water seepage of the cable can be detected rapidly within 2-6 minutes. The device and the method are easy to operate and are convenient to implement, and the loss of a plant in a detection loop is minimized by means of rapid detection.

Description

technical field [0001] The invention relates to the technical field of optical cable manufacturing and detection, in particular to a device for quickly detecting water seepage of optical cables and a detection method thereof. Background technique [0002] The water seepage performance test of optical cables has always been a key item in the environmental performance of optical cables. With the vigorous promotion and expansion of national information projects, the current laying methods of optical cables are mainly pipelines and direct burial, supplemented by outdoor overhead. Water permeability is particularly important. The long-term use of the optical cable in a watery or humid environment will cause the water peak of the optical fiber to attenuate, and at the same time, through infiltration corrosion, the microcracks on the surface of the optical fiber will continue to expand until the optical fiber breaks; water seepage will also corrode the metal reinforcement in the op...

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Problems solved by technology

[0004] In production, if a 3-meter-long optical cable is used according to the standard, and a 1-meter-high water column is applied to observe the water seepage of the optical cable for 24 hours, the time is too long; in order to save time and unnecessary waste, in the actual production process, the optical cable water seepage detection is usually used. , 3 meters of optical cable, apply a 1-meter-high water column, and observe the water seepage of the optical cable for 8 hours; or use a shorter time, 1-meter optical cable, apply a 1-meter-high water column, and observe the water seepage of the optical cable for 1 hour. If there is no water seepage, pass the water seepage test. If the water seepage is tested again according to the GB / T7424.2-2008 water seepage detection standard, it will take more time

[0005] The commonality of the above several optical cable water seepage detection methods is that the optical cable water seepage detection takes a long time and the result cannot be detected immediately; after the test result comes out, the already produced optical cable may face unqualified, or the production must wait for the water seepage result to come out before continuing Production, both cases will bring a lot of losses to the factory; moreover, the traditional optical cable water seepage device is relatively heavy and inflexible in operation

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