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Safety regulations of the utility must prevent any attempt to open the disconnector while it supplies a circuit. Standards in some countries for safety may require either local motor isolators or lockable handles (which can be padlocked). IEC standard 62271-102 defines the functionality and features of a disconnector.
Front cover of Eaton's Spring and Summer Catalogue 1942. The Eaton's catalogue was a mail-order catalogue published by Eaton's from 1884 to 1976. It was "one of the first to be distributed by a Canadian retail store". [1] The first version of the catalogue was a 32-page booklet handed out at the Industrial Exhibition (now the Canadian National ...
An opto-isolator is a very popular method of isolation in digital circuits. Cross-section of dual in-line package opto-isolators. Relative sizes of LED (red) and sensor (green) are exaggerated. Everlight EL817 phototransistor opto-isolator in DIP-4 package Halo TG110-S050N2RL 10/100BASE-TX Ethernet pulse transformer in SO-16 package.
These isolators are durable and can withstand extreme environments. They are often used in military applications. [4] [5] Base isolators for seismic isolation of buildings, bridges, etc. Base isolators made of layers of neoprene and steel with a low horizontal stiffness are used to lower the natural frequency of the building.
A 230 V isolation transformer A simple 1:1 isolation transformer with an extra dielectric barrier and an electrostatic shield between primary and secondary. The grounded shield prevents capacitive coupling between primary and secondary windings.
IEC 60364 Electrical Installations for Buildings is the International Electrotechnical Commission (IEC)'s international standard on electrical installations of buildings.This standard is an attempt to harmonize national wiring standards in an IEC standard and is published in the European Union by CENELEC as "HD 60364".
Barrier isolator, a device that provides a physical barrier between a laboratory technician and a work process; Optical isolator, a directional device in optical fiber communications; Opto-isolator, a directional device in electronics; Vibration isolator, any of various devices to isolate connected parts of an assembly from each other's vibrations
The International Electrotechnical Commission (IEC; French: Commission électrotechnique internationale) is an international standards organization that prepares and publishes international standards for all electrical, electronic and related technologies.