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One definitionOne view point is that "Electrical" relates to the development and delivery of the electrical energy to the various devices that perform specific functions in a given environment. Example: The alternator in your car that series of wires delivers electrical power / energy to various components (radio, the computer that monitors / controls operation of the engine) in to-days cars. Where as "Electronics" relates more to the complex functions performed within a given device, more often now days by circuits comprised of many micro electronic sub components that make up the structure of a single micro electronic component. Example: a typical CPU chip would / could contain thousands of individual transistor circuits within a device no bigger that the size of your small finger nail with room to spare.In short: electrical circuits handle transfer of energy - electronic circuits handle transfer of informationwhat is the main difference between electrical and electronics ?In short: electrical circuits handle transfer of energy - electronic circuits handle transfer of informationRead more: http://wiki.answers.com/What_is_the_difference_between_the_terms_Electrical_and_Electronics#ixzz1RmeXS2Zv
TPN (Triple Pole and Neutral) isolator is an electrical switch used to disconnect three-phase electrical circuits, ensuring that all three phases and the neutral are isolated for safety during maintenance or servicing. SPN (Single Pole and Neutral) isolator, on the other hand, is used for single-phase circuits, allowing isolation of the live wire and the neutral wire. Both types of isolators are crucial for ensuring safety by preventing accidental energization of circuits during work.
A non projective engineer's drawing is done without using any instruments like triangle and scale. Such a drawing is also called a sketch or free hand drawing.
Electronics hand tools are used to facilitate the implementation and manipulation in the production of electronic circuits at their best onto veroboards or printed circuit boards (PCB).
A short circuit is simply a circuit in which the resistance is substantially low. This means that the current of electrons flows far too fast and overheats. This can also form electric arcs (electrons jumping from one point to another). Three common results of short circuits can be: overheating (causing fires), overheating (causing explosions), and electric arcs (causing electric shock).