The greatest danger in electrical systems is leakage currents. Leakage currents, sometimes because the ground line resistance is too high, sometimes also tThe cables connected to the grounding line occur because they come into contact with another location due to insulation errors. If leakage currents are not removed from the electrical system, they create a danger to human health and property safety. The leakage current must not exceed 30 mA. The existence of such a danger will be put into the system leakage current relay. Leakage relay, isolation to detect faulty currents resulting from the faults and to break the circuit if the leakage current value exceeds a certain value. In general, the residual current relays perform the function of protecting human life in the 30 mA and the system in the 300 mA. According to world standards, leakage current relays are produced between 30 mA and 300 mA values.

The leakage current relay operates by acting on the principle that the current passing through it is equal to the currents which are activated and deactivated. If the currents entering and leaving the residual current relay are equal, then no magnetic current is generated. Otherwise, a difference occurs as a result of current imbalance. The leakage current relay detects this difference and cuts the energy on the electrical system in a very short time. In this way, the formation of leakage current is prevented.

In fact, fuses in an electrical installation are also part of the security system. Both of them They are used for protection purposes, but both systems perform the protection function in different ways. For example, the fuses are manufactured as 10A, 16A or 32A and the circuit does not open until the current flowing reaches a certain current value that the fuse meets. Therefore, it can not fully meet the health of life. However, the leakage current relays operate on the basis of equal current and output current and close the circuit when the current difference is 30 mA.

Our company within the framework of electrical safety examinations, electrical current leakage measurements in accordance with the relevant regulations, standards and test methods published by domestic and foreign organizations.