等電位連接器的作用

等電位連接器就是將建筑物內(nèi)部和建筑物本身的所有的大金屬構件全部用母排或導線

進行電氣連接，使整個建筑物的正常非帶電導體處于電氣連通狀態(tài)。

等電位連接器主要是各種保護作用：

1.

Lightning protection

IEC

The standard states that equipotential connection is part of the internal lightning protection measures. When lightning strikes a building, there is a gradient in lightning transmission, and the potential difference between the metal frame joints of the vertical adjacent layers can be reached

10 kv

Magnitude, very dangerous. But the equipotential connection will be the main reinforcement of the layer column, the metal frame of the building, metal device, electrical device, telecommunications device, etc., to form an equipotential connection network, can prevent direct lightning, induction

Lightning, or other forms of lightning, to avoid fire, explosion, danger to life and damage to equipment.

2.

Electrostatic protection Electrostatic is the charge distributed on the surface or volume of a dielectric, and on the surface of an insulating conductor in a state of rest. Transfer or separation of solid insulating materials, conveying or mixing powder materials, flow or wash insulation liquid

Mass, high speed injection of steam or gas, will produce and accumulate dangerous static electricity. Although the electrostatic quantity is not large, but the voltage is very high, easy to produce spark discharge, cause fire, explosion or electric shock. Equipotential coupling can transfer electrostatic charges

Collect and transmit to the ground grid to eliminate and prevent electrostatic hazards.

3.

Electromagnetic interference Protection In the process of power supply system failure or direct lightning discharge, the powerful pulse current causes electromagnetic induction to the surrounding wires or metal objects, and the sensitive electronic equipment is in the process, which may cause data loss and system crash. Usually, shielding is the basic measure to reduce the damage of electromagnetic waves, in the room system interface to do the equipotential connector, because to ensure that all the shielding and equipment shell between the realization of good electrical connection, minimize the potential difference, the external current can not invade the system

.

To effectively protect against electromagnetic interference.

4.

Get an electric shock protection

1999

years

6

The new construction ministry that begins to execute month "residential design standard" in, have the clause that does not attract attention quite: the town builds the toilet appropriate in the residence to do equipotential connection. Expert popular explanation is: the bathroom waits for electricity

Bit connection is to protect you from getting zapped in the shower. Electric water heaters, bidets, electric walls, bath baths and traditional electric lights

...

There is a danger of leakage, although the electrical equipment shell with

PE

Wire connection, while still possible

Appear enough to cause the potential of injury, produce short circuit, insulation aging, neutral point offset or outside lightning and cause the bathroom to appear when dangerous potential difference, the possibility that the person gets electric shock is very big, if the person itself has disease of heart brain respect,

The consequences are more serious. Equipotential connection makes the electrical equipment shell and floor wall potential equal, can greatly avoid the injury of electric shock, its principle is similar to the bird standing on the high voltage line, because there is no potential difference between body parts and will not be

An electric shock.

5.

Grounding fault protection If the phase line has a fully grounded short circuit,

PE

The fault voltage that will be generated on the line. There is an equipotential connection with

PE

The wiring of the equipment housing and the surrounding environment are at this fault voltage, so there is no danger of electric shock due to potential difference.

Equipotential connector is only a simple wire connection device is only equipotential box and copper wire, but can greatly eliminate safety risks, so can not be destroyed.

The NATIONAL Electrical Code defines a equipotential connection as "a permanent connection of metal bodies to form a conductive path that ensures the continuous conduction of electricity and the safe conduct of the current that is expected to be applied to it." Gb50054-95 definition "electrical connection that makes the potential of the conductive part of the exposed conductor and the conductive part outside the device basically equal. According to the theoretical analysis, the smaller the scope of equipotential connection, the safer it is electrically.

." The role of equipotential connection is very important in the world. It is very necessary for electrical safety, lightning protection and the normal operation and safe use of electronic information equipment.

Equipotential connections (also called connections) are defined in the following ways, but they are all exaggerated. Equipotential connections are those in which electrical conductors with the potential to be electrically charged injure or object are connected and are equal to the ground potential.

"Gb50343-2004 definition" electrical connections of approximately equal potential between the equipment and the leakable conducting sector.

"Gb50057-94 Definition of equipotential connection" to connect separate devices, various conductive objects, etc. with equipotential connection conductors or surge protecators to reduce the potential difference between them caused by small lightning current.