As a device, terminal blocks can be used for signals as well as for grounding, and are no different from grounding terminals. If used as a commodity, wiring terminals are usually used for signal and power connections, while grounding terminals are used for grounding. Terminal block is a type of accessory product used to achieve electrical connections, which is classified as a connector in industry. Below, the editor of graphite based flexible grounding body will lead you to understand it together.
With the increasing degree of industrial automation and stricter and more precise requirements for industrial control, the usage of terminal blocks is gradually increasing. With the development of the electronics industry, the use of terminal blocks is becoming more and more widespread, and the types are also increasing. Currently, in addition to PCB board terminals, the most widely used ones include hardware terminals, nut terminals, spring terminals, and so on. The grounding terminal is a terminal or grounding strip that connects protective conductors, including equipotential bonding conductors and working grounding conductors, to grounding equipment devices. The terminal connected to the grounding body is the grounding terminal. The material depends on the material of the wire.
Most of them are made of copper, but there are also copper aluminum transition terminals. The editor of the graphite based flexible grounding body reminds everyone that pure copper or anti-corrosion stainless steel is mainly used for casting and directly poured into cable trays or other concrete products. It is widely used in industries such as petrochemicals, electrified high-speed railways, substations, etc. According to IEC 62305-3, copper casting requires a material purity of 98% or higher.
The grounding terminal is used for grounding wires. The use of grounding terminals can provide good grounding conditions for the grounding wire. Otherwise, the grounding wire will be randomly connected everywhere. The purpose of grounding is to provide safety measures in the event of abnormal equipment failures, sometimes established to obtain reasonable line allocation. Generally, pure copper or anti-corrosion stainless steel is used for casting and directly poured into cable trays or other concrete products. The editor of the graphite based flexible grounding body reminds everyone that when using copper casting according to IEC 62305-3, the material purity should reach 98% or above. When using stainless steel casting, the material should meet the requirements of Cr ≥ 17%, Ni ≥ 8%, Mo ≥ 2%, and C ≤ 0.06%. Single hole (M16) grounding terminals shall be provided for the beam body, pier body, and pier cap of electrified railways that do not require cable access to the bridge; The roadbed and bridge pier caps with cable requirements are generally equipped with double holes (M16), and in special cases, multiple holes (M16) can be used as expansion busbars. )
The grounding strip is a strip product made of copper or copper aluminum transition metal, covered with screws to fix the cable. The editor of the graphite based flexible grounding body reminds everyone that grounding bars are more commonly used in high-speed, large buildings, and high-rise buildings to connect multiple grounding wires. Usually, when using grounding bars, they are buried in concrete and sometimes embedded in floors.
Grounding is not only used to prevent leakage, but also for lightning protection. So the editor of graphite based flexible grounding body reminds everyone that copper is generally chosen as the material for grounding bars. Only with good conductivity can strong currents be introduced into the ground. Of course, grounding bars can also be used as a substitute for terminal blocks in large equipment. The installation of grounding bars is simpler and more convenient, as only the ground wire needs to be connected to the terminal. Before connecting the ground wire, the European style terminal block needs to be assembled onto the guide rail and marked with a marker. Finally, fix it with fasteners and complete a series of preparatory work before it can be used normally.