cell phone jammer will automatically form the shielding magnetic field

If equipped with a grounding of electrical equipment insulation damage to the live shell, the ground short-circuit current will also be two along the ground and the body flow path, Id = Id ?+ IR, we know: In a parallel circuit, through each current value of slip resistance is inversely proportional to the size, that is, where: Id-ground loop current along the grounding value Id?-current flow through the body of the current IR-rR-body resistance rd ? The grounding resistance of grounding devices can be seen from the above equation, the smaller the grounding resistance, the smaller the current flowing through the body, usually large numbers of human resistance than the grounding resistance times the current through the body than the current flowing through the grounding of the fractional times .? cell phone jammer adopts the special advanced technology approach according to requirements of the market.Very hour when the grounding resistance, the current flowing through the body almost zero. That Id ? Id ?. In fact, the grounding resistance is small, ground short-circuit current flows generated by the voltage drop is small, so the equipment enclosure to the earth voltage is not high. People standing on the earth up to touch the enclosure, the human body to withstand the voltage is low, there will be no danger. Installation of protective earthing device and reduce its grounding resistance, not only to protect the intelligent building electrical system is safe and effective operation of effective measures is to protect non-intelligent building equipment and personal safety means necessary. 4 DC Ground: In an intelligent building, containing a large number of computers, communications equipment and building automation equipment with computers.? cell phone jammer will automatically form the shielding magnetic field within the specified range during working process.In these electronic devices during the input information, transmit information, energy conversion, signal amplification, logic operation, the output process through a series of micro-or micro-current potential quickly, and the devices often have to work through the Internet . Therefore, in order to make high accuracy, good stability, in addition to the need for a stable power supply, but also must have a stable reference potential. Larger cross-section can be used as insulated copper wire leads, one end connected directly with the reference potential, the other side of the DC grounding for electronic equipment. The lead should not be connected with the PE line, cable connection and N is strictly prohibited. Wireless Tap Detector SHN018 ? ? has the effective divisions.5 anti-static grounding and shielding ground: in intelligent buildings, design of electromagnetic compatibility is very important, in order to avoid obstacles to the functioning of the equipment used, to avoid equipment damage or even appear to form wiring system within the device itself should be able to prevent the transmission and external interference. These interfere with the production or because the phenomenon of coupling between the wires, or because the capacitance or inductance effects. The main source of high voltage, high-power electromagnetic radiation, natural lightning and electrostatic discharge. These phenomena would be designed to send or receive high frequency transmission devices have a great disturbance. Therefore, these devices and their wiring must take protective measures against interference from various aspects. Shielded and properly grounded to prevent electromagnetic interference with the best methods of protection.? cell phone jammer can intelligently and remotely control the power output. Equipment enclosure can be connected with the PE line; wire shield grounding requirements at both ends of shield line connected with the PE wire; room shielding should also be more reliable connection with the PE line.

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