Electrical apparatus used for switching electrical circuits

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establishes clear and consistent instructions and procedures for temporary grounding of deenergized and isolated high-voltage equipment (over volts)... . electrical installation guide the electrical installation guide is a single document covering the techniques, regulations and standards related to...

https://electrical-engineering-portal.com/download-center/books-and-guides/electrical-engineering

a newer one [ ] ))which sets collection, recycling and recovery targets for electrical goods and is part of a legislative initiative to solve the problem of huge amounts of toxic electronic waste . in speech, rohs is often spelled out, or pronounced[ citation needed ] /rɒs/ , /rɒʃ/ , /roʊz/ , or /ˈroʊhɒz

in several plastics. hexavalent chromium is used in chrome plating , chromate coatings and primers , and in chromic acid . the maximum permitted concentrations in non- exempt products are % or ppm (except for cadmium , which is limited to % or ppm) by weight. the restrictions are on each homogeneous...

https://en.wikipedia.org/wiki/Restriction_of_Hazardous_Substances_Directive

;semiconductors;rectifiers;diodes;electrical equipment;measuring;analysing instruments;welding;soldering suppl c- ,okhla industrial area,phase- ,, new delhi, delhi, india shanghai sinble electronics co., ltd. diodes;rectifiers;bridge diodes;schottky diodes;tvs diodes;sidac;zener didoes no. denghui road

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constructed a flute -playing automaton , in the shape of a man, life-size, seated on a chair. hidden inside the chair were levers, connecting rods and compressed air tubes, which made the automaton's lips and fingers move on the flute according to a program recorded on a cylinder similar to those used

its eyes. later he managed to get his automaton to play any piece performed by a musician on an organ by muting the organ's keys and connecting them to the automaton's fingers. a complex automaton was described in the same news article that described manzetti's telephone. [ ] he also built, as a toy for...

https://en.wikipedia.org/wiki/Innocenzo_Manzetti

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or purifying machinery and apparatus for liquids or gases: - filtering or purifying machinery and apparatus for liquids: for filtering or purifying water wastewater management and water treatment centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus for liquids or

instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring...

https://www.wto.org/english/res_e/booksp_e/tariff_profiles19_e.pdf