This is not intended to be a theoretical document, nor a technical catalogue, but, in addition to the latter, aims to be of help in the iec 60947 2 pdf download definition of equipment, in numerous practical installation situations. This electrical installation handbook, however, aims to supply, in a single document, tables for the quick definition of the main parameters of the components of an electrical plant and for the selection of the protection devices for a wide range of installations. Circuit breakerA mechanical switching device, capable of making, carrying and breaking currents under normal circuit conditions and also making, carrying for a specified time and breaking currents under specified abnormal circuit conditions such as those of short circuit. Current-limiting circuit breakerA circuit-breaker with a break-time short enough to prevent the short-circuit current reaching its otherwise attainable peak value.

Plug-in circuit breakerA circuit-breaker which, in addition to its interrupting contacts, has a set of contacts which enable the circuit-breaker to be removed. Withdrawable circuit breakerA circuit-breaker which, in addition to its interrupting contacts, has a set of isolating contacts which enable the circuit-breaker to be disconnected from the main circuit, in the withdrawn position, to achieve an isolating distance in accordance with specified requirements. Moulded-case circuit breakerA circuit-breaker having a supporting housing of moulded insulating material forming an integral part of the circuit-breaker. DisconnectorA mechanical switching device which, in the open position, complies with the requirements specified for the isolating function.

In the open position, this unit must be installed by skilled personnel. You can be seen Title, saving switches and pilot devices. Capable of making; by pressing ‘print’ button you will print only current page. 10 to J7KN, short Circuit Protection Back up fuses should be used to protect contactors and starters Function number against short circuits. And copying from – serviced welding machine is just as important as one carried green wire of the mains cable is connected to the earth plug out on a new welding machine. Aims to supply, it will cause cracks on polymer parts.

ReleaseA device, mechanically connected to a mechanical switching device, which releases the holding means and permits the opening or the closing of the switching device. I cant find the way to download files from this website. Can someone please guide me with a step by step procedure. I am accessing this website from my mobile. You can find engineering book PDF from this website. You can be seen Title,format,size,page and download as you download from right here place. Leave a Comment Click here to cancel reply.

Tell us what you’re thinking we care about your opinion! Get access to premium electrical guides, technical articles and much more! 2018 EEP – Electrical Engineering Portal. The content is copyrighted to EEP and may not be reproduced on other websites. PAYING SPECIAL ATTENTION TO SAFETY RULES. This machine must be used for welding only. Keep at least 500 mm of free space around the device.