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A chase is an electrical application where strings of adjacent light bulbs cycle on and off frequently to give the illusion of lights moving along the string. With computerized lighting consoles, building chase sequences has become easier, while previously chases used mechanical means, such as a wheel with an electrified spindle which strikes electrical contacts for each circuit.
Lighting is the technology of illuminating an area, usually by artificial sources such as a lamp or flashlight. Lighting design is concerned with illumination in different settings, such as architectural lighting and theatrical lighting.
The network cable is required to provide a maximum drop of 2 volts along the cable. [3]: 19 At 250 mA of supply current, that requires a resistance of ≤ 4 Ω per wire. The wire size needed to achieve this depends on the length of the bus, up to a recommended maximum of 2.5 mm 2 at 300 m when using the maximum rating of bus power supply.
Graybar Electric Company, Inc. is an American wholesale electrical, communications and data networking products distribution business, which also supplies related supply-chain management and logistics services. The company is based in Clayton, Missouri and is an employee-owned corporation.
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Flexible metallic tubing (FMT; North America) is not the same as flexible metallic conduit (FMC) which is described in US National Electrical Code (NEC) Article 348. FMT is a raceway, but not a conduit and is described in a separate NEC Article 360. It only comes in 1/2" & 3/4" trade sizes, whereas FMC is sized 1/2" ~ 4" trade sizes.
On October 7, 2015, the Commercial division of GE Lighting was separated from the business and a new startup, Current, was created. [9] On July 1, 2020, GE Lighting was acquired by Savant Systems, a home automation company headquartered in Hyannis, Massachusetts, United States. [10] This was General Electric's last consumer business. [11]
Thorn Lighting Ltd, a subsidiary of the Zumtobel Group, is a global supplier of both outdoor and indoor luminaires and integrated controls.. Thorn was founded when Sir Jules Thorn started The Electric Lamp Service Company Ltd, in 1928, dealing in incandescent filament lamps.
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related to: chase lighting & electrical supply rical supply co catalog division 2 manual