Glass fiber insulation mat detection method and precautions for use
Glass fiber insulation mat is a good material for industrial equipment insulation, which can protect equipment. So how do you check the quality of fiberglass insulation mats? What should you pay attention to when using fiberglass insulation mats? Next, let's take a look at it together.
Glass fiber insulation mat detection method
When testing the glass fiber insulation mat, firstly lay the glass fiber insulation mat on the wet cloth or metal foil, and it should be 200mm smaller than the surrounding of the glass fiber insulation mat to be continuously boosted to the voltage value specified in the following table (when the voltage is 10KV, Can be selected not less than 8mm thick, power frequency withstand voltage test 10000V, voltage is 35KV, optional not less than 10-12mm thick, power frequency withstand voltage test 15000V, voltage is 0.4KV low voltage, optional not less than 5mm thick, work Frequency withstand voltage test 3500V,), hold for 1min, observe the phenomenon of breakdown, if there is no breakdown, the test passes.
The AC withstand voltage method is used to detect the glass fiber insulation mat. This method is directly reliable, but it is necessary to replace the insulator and it is difficult to measure on site. Ultraviolet imaging method, using electronic ultraviolet optical detection, can be charged detection. Glass fiber insulation mats are not affected by weather, geography, environment, materials, etc.
Non-contact measurement, continuous operation, safe and reliable. Detecting the characteristic sound waves emitted by the inferior fiberglass insulation mat during partial discharge, and detecting the deterioration of the insulator by the unique properties of the sound wave. The glass fiber insulation mat produces an extremely complex sound wave. The wavelength of this sound wave is short, the frequency is high and the frequency is high, and the optical properties are close. We have carried out an in-depth analysis of the sound wave to find out the sound wave. characteristic.
Fiberglass insulation pad use precautions
The production process of glass fiber insulation mat products shall be through the basic processes of mastication, mixing, calendering or extrusion, molding and vulcanization, and then combined with the metal material to form a semi-finished product, and finally vulcanized and will have The plastic semi-finished products are made into a highly elastic final product, and each process has different requirements for the products, and is separately matched with several auxiliary operations. The raw rubber used in the glass fiber insulation mat first needs to be plasticized to improve its plasticity, and then the carbon black and various rubber additives and rubber are uniformly mixed into a rubber compound by kneading. Each process has different requirements for the products, and each of them is coordinated with several auxiliary operations. In order to add various required compounding agents of the glass fiber insulation mat to the rubber, the rubber material is pressed out to form a blank of a certain shape. In order to add various required compounding agents into the rubber, the raw rubber is firstly subjected to mastication. Improve its plasticity.
Fiberglass insulation mats are not exposed to the sun for long periods of time, which reduces their useful life. Not only can glass fiber insulation mats be exposed, but other environmental factors such as temperature, humidity, and other factors restrict the service life of fiberglass insulation mats. If not paid attention, it may not cause optimal insulation, resulting in It is terrible to have a dangerous accident at work.
The above is about the introduction of glass fiber insulation mats and methods and precautions for use. I hope everyone can understand the testing methods and precautions for glass fiber insulation mats.
