Insulate Cord End Terminals E 1508 For Quick Crimp Electrical Terminal Connectors
Tubular insulated terminal can make it easier for the conductor to insert into the end;
With the development of the electronic industry, terminals are used more and more, and there are more and more types. Terminal block refers specifically to a series of combined wiring fixtures in electrical engineering. The number of terminal points in each row is different, and its model can be determined according to the needs of engineering technical parameters. The closed screw guide hole ensures ideal screwdriver operation. The application of terminal block is mainly reflected in: in power electronic distribution and wiring, when the equipment inside the screen is connected with the equipment outside the screen, it must pass through some special terminal blocks. These terminal blocks are called terminal block when combined. According to the wire diameter of the connecting line or the current to flow, decide to use 1.5A, 2.5A, 4A or other terminals. Remember that the higher the current, the greater the volume. Special attention should be paid to the different colors of terminals, which have special representative significance. Yellow and green terminals are usually grounded. Generally, the colors of terminals are black and gray according to different manufacturers. The correct use of colors can bring safety protection to on-site maintenance personnel. According to the size of a panel, we can calculate whether the number of working terminals required by the enterprise is consistent with its development. This determines whether to use single-layer terminals or double-layer terminals. Double-layer terminals can save twice the space than single-layer terminals. The necessity of electric safety as an electric welder, in addition to the binding, pressing, touching, falling and wiping of cold pressed terminals in international practice, it is also damaged by electric shock accidents.
Four criteria for cold pressed terminals to evaluate the power safety of an enterprise or its own: no electric fire, no inverted pole disconnection and cross level power tripping, no theft and destruction of electrical equipment, personal safety, death and injury of electric shock accident. The contact is the core part of the terminal connector to complete the electrical connection function. Generally, the contact pair is composed of positive contact and negative contact, and the electrical connection is completed through the insertion of negative and positive contacts. The male contact is a rigid part, and its shape is cylindrical (round pin), square cylindrical (square pin) or flat (insert). Male contacts are generally made of brass and phosphor bronze. The female contact, namely the jack, is the key part of the contact pair. It relies on the elastic structure to produce elastic force due to elastic deformation when inserting with the pin, and forms close contact with the male contact to complete the connection. There are many kinds of jacks, including cylindrical (split slot, necking), tuning fork, cantilever (longitudinal slotting), folding (longitudinal slotting, 9-shape), box (square jack) and hyperboloid linear spring jack. The problem of short circuit fault is that the phase (fire) line and phase line, phase line and zero line, phase line and shell or ground collide immediately, and the control circuit is formed immediately without power consumption, which is a high risk. Secondly, in the three-phase four wire power supply system, it is afraid of breaking the zero line. When the three-phase load of a house is unbalanced, the three-phase current will be connected in series through the middle of the load to energize the neutral point. The working voltage of the phase with small load (large characteristic impedance) is correspondingly high. Sometimes the direct current voltage becomes phase voltage, and the working voltage of the phase with large load (small characteristic impedance) is very low.