Normally, insulation must be provided between the live parts and the live parts in an operating environment. When this is not done, electricity will flow to places where electrical energy should not be available. This is a danger to life safety. Similarly, insulations must be provided between the sections within the electrically operated devices. This is very important for the normal operation of the devices.
Insulating materials, ie insulating materials, are substances that do not transmit heat, sound and electrical current to the environment. Insulating materials may vary according to the areas in which they are used. For example, the material, which is a good insulator for sound, can easily transmit electrical current. For this reason, it is important to use suitable insulation.
Electrical insulators are substances that do not conduct electricity in short. In fact, every substance is conductive (meanwhile the human body is a conductor). However, substances have a certain strength. This is called insulation resistance. If there is an electric current above the insulation resistance, the substance acts as a conductor, that is, conducts electricity. The insulating resistance of a substance is tested and controlled using suitable devices.
When calculating the insulation resistance, a constant voltage is applied to the system whose resistance is to be measured and the current is measured. The insulation resistance is the ratio of this voltage and current. Insulation resistance measurement is a test of almost any type of electrical equipment, both in production and in service. The purpose of these measurements is to determine whether there is a threat to human health.
Importance of Insulation and Insulation Testing
Insulation testers are test devices for measuring the insulation resistance of any conductor. The principle of operation of these devices is that they are a generator that produces direct current at different stages. Insulation testers are used to perform insulation resistance tests of large motors. In addition, low voltage, medium voltage and high voltage cables, It is also used in the insulation resistance tests of high voltage generators, transformers and electrical devices.
It is possible to obtain very fast results with insulation test equipment. It is the device most used by electrical engineers. These devices can be used in a wide range of areas. The appropriate range can be easily selected with different range settings. It is possible to measure very high insulation resistance values. The data obtained can be analyzed with special software for computer.
If the results are high, this shows that the insulation is good. Otherwise, the installation is not very healthy. No system should be supplied to a system with insulation resistance below certain standards in order not to jeopardize the health and safety of workers.
Insulation and insulation tests and installations are included in the Annex (III-III) of the Regulation on Health and Safety Conditions in the Use of Work Equipment issued by the Ministry of Labor and Social Security. Accordingly, the persons who will perform such tests must be electrical engineers, electrical technicians or high technicians.
Briefly, connections are made with conductive wires in electrical devices. During the transmission of electricity to the devices, the current may deviate from other paths for some reason as it passes through these conductive wires. Operation of such devices poses serious hazards to people. The insulation of the conductive wires is to ensure that the current flowing through it does not deviate from other paths. The simplest example of insulation is cables. The resistance of insulating materials to electrical current is called insulating resistance. Insulation resistance is also called insulation resistance or insulation resistance.
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