[{"id":"3967869","item_id":"3967869","match":1,"item_name":"Duct","c_name":"Duct","soc_link":0,"cache":0,"item_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/main\/images\/blank.gif?f653f536e","item_width":1,"item_height":1,"item_type":"topic","missing":0,"item_info":{"summary":"Look up duct in Wiktionary, the free dictionary.  A duct may refer to:    Duct (anatomy), various ducts in anatomy and physiology  Tear duct, which carry tears to the eyes     Duct (HVAC), for transfer of air between spaces in a structure   Duct tape, a kind of adhesive tape   Ducted fan, motor for aircraft  Electrical bus duct, a metal enclosure for busbars    Duct (industrial exhaust), industrial exhaust duct system designed for low pressure-pneumatic convey of gas, fumes, dusts, shavings, and other pollutants from works space to atmosphere after cleaning and removal of contaminants   Atmospheric duct, a horizontal layer in the lower atmosphere in which the vertical refractive index gradients are such that radio signals (a) are guided or ducted, (b) tend to follow the curvature of the Earth, and (c) experience less attenuation in the ducts than they would if the ducts were not present   Tropospheric ducting, a type of radio propagation in the troposphere that allows signals to travel unusually long distance"},"level":"item","offset":12,"owner_id":"1575","owner_username":"Wikipedia","owner_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/1\/1575\/thumbs\/me.jpg","has_image":1,"item_feedback":[],"properties":9,"following":0,"saved_folders":[],"name_count":1,"elastic":1,"took":5,"vote":0,"elapsed":"23"},{"id":"4427514","item_id":"4427514","match":1,"item_name":"Buss","c_name":"Buss","soc_link":0,"cache":0,"item_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/main\/images\/blank.gif?a23841206","item_width":1,"item_height":1,"item_type":"topic","missing":0,"item_info":{"summary":"Look up buss in Wiktionary, the free dictionary.  Buss may refer to:    Buss (surname), a family name   Buss, the pressing of lips   Buss, abbreviation for bussbar, more often busbar, a larger conductor   Herring buss, a small fishing boat   Buss Island, a phantom island in the North Atlantic Ocean   See also    Martin Bu\u00df (born 1976), German high jumper   Franz Josef Ritter von Bu\u00df (1803\u20131878), German Roman Catholic jurist, activist and politician  Bus (disambiguation)"},"level":"item","offset":13,"owner_id":"1575","owner_username":"Wikipedia","owner_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/1\/1575\/thumbs\/me.jpg","has_image":1,"item_feedback":[],"properties":9,"following":0,"saved_folders":[],"name_count":1,"elastic":1,"took":5,"vote":0,"elapsed":"25"},{"id":"2188189","item_id":"2188189","match":1,"item_name":"Bus (disambiguation)","c_name":"Bus (disambiguation)","soc_link":0,"cache":0,"item_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/main\/images\/blank.gif?315da2263","item_width":1,"item_height":1,"item_type":"topic","missing":0,"item_info":{"summary":"Look up bus in Wiktionary, the free dictionary.  A bus is a vehicle designed to carry passengers.  Bus, Bu\u015f, Bu\u0161, or BUS may also refer to:    People    Lauren\u021biu Bu\u0219 (born 1987), Romanian footballer   Sergiu Bu\u0219 (born 1992), Romanian footballer, brother of Lauren\u0163iu Bu\u015f  James Bus Cook, nickname of sports agent   Schelte J. Bus (born 1956), American astronomer   Places    Bu\u0161 (Prague-West District), Czech Republic   Bus, Pas-de-Calais, France, a commune  Bus or Buss Island, a phantom island in the North Atlantic Ocean   Batumi International Airport (IATA airport code BUS), in the country of Georgia   Science and technology    Bus (computing), transferring data   British-Ukrainian Symposium on Anaesthesiology, Intensive Therapy and Pain Medicine in Kyiv, Ukraine   Bus network, a type of network topology   Busbar, an electric power distribution channel   Satellite bus, a general spacecraft model for multiple-production satellites   Other uses    Bus (Bulgarian play), 1980   Belle Urban System, the transit agen"},"level":"item","offset":14,"owner_id":"1575","owner_username":"Wikipedia","owner_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/1\/1575\/thumbs\/me.jpg","has_image":1,"item_feedback":[],"properties":9,"following":0,"saved_folders":[],"name_count":1,"elastic":1,"took":5,"vote":0,"elapsed":"26"},{"id":"2975708","item_id":"2975708","match":1,"item_name":"Isolated-phase bus","c_name":"Isolated-phase bus","soc_link":0,"cache":0,"item_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/images\/cache\/b2\/f5\/47\/b2f5477e773880f4facfe5a08b330465.jpg","item_width":220,"item_height":165,"item_type":"topic","missing":0,"item_info":{"summary":"In electrical engineering, isolated-phase bus (IPB), also known as Phase-isolated Bus (PIB) in some countries, is a method of construction for circuits carrying very large currents, typically between a generator and its step-up transformer in a steam or large hydroelectric power plant.    Isolated phase bus during installation at the Bui Dam Ghana. Segments of bus are temporarily supported by scaffolding. The interior aluminum conductors are temporarily braced for installation. The inner conductors and outer enclosure will be welded to form a unit. Inside the enclosure, the inner conductor is supported by polymer insulators; a small hatch for access to the insulator is visible. Each phase is separated.  Each phase current is carried on a separate conductor, enclosed in a separate grounded metal housing.[1] Conductors are usually hollow aluminum tubes or aluminum bars, supported within the housing on porcelain or polymer insulators. The metal housings are electrically connected so that induced current, nearly"},"level":"item","offset":15,"owner_id":"1575","owner_username":"Wikipedia","owner_image":"http:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/1\/1575\/thumbs\/me.jpg","has_image":1,"item_feedback":[{"fi_state":"1","spam":0,"hidden":0,"private":0,"item_id":"2975708","c_fldr_id":"79866","c_username":"revolvybrain","c_user_id":"389","c_user_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/0\/389\/thumbs\/user.jpg","c_user_width":"300","c_user_height":"300","c_firstname":"Revolvy","c_lastname":"Brain","c_fldr_name":"Electric power systems components","sort_folders":"1","c_num_items":"74","fi_updated_at":"12\/23\/2014 3:39 AM","fi_tstamp":"1419305950","c_fldr_count":1}],"properties":9,"following":0,"saved_folders":[],"name_count":1,"elastic":1,"took":5,"vote":0,"elapsed":"28"},{"id":"2712363","item_id":"2712363","match":1,"item_name":"Bushing (electrical)","c_name":"Bushing (electrical)","soc_link":0,"cache":0,"item_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/images\/cache\/fb\/f4\/31\/fbf4314f9e238e03bfe9d788e0edb842.jpg","item_width":290,"item_height":98,"item_type":"topic","missing":0,"item_info":{"summary":"Assortment of small ceramic bushings for voltages from a few hundred to a few thousand volts.  In electric power, a bushing is an insulated device that allows an electrical conductor to pass safely through a grounded conducting barrier such as the case of a transformer or circuit breaker. Bushings are typically made from porcelain; though other insulating materials are also possible, generally porcelain is used.  Explanation  All materials carrying an electric charge generate an electric field. When an energized conductor is near a material at earth potential, it can form very high field strengths, especially where the field lines are forced to curve sharply around the earthed material. The bushing controls the shape and strength of the field and reduces the electrical stresses in the insulating material.  Bushing condenser  A bushing must be designed to withstand the electrical field strength produced in the insulation, when any earthed material is present. As the strength of the electrical field increases,"},"level":"item","offset":16,"owner_id":"1575","owner_username":"Wikipedia","owner_image":"http:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/1\/1575\/thumbs\/me.jpg","has_image":1,"item_feedback":[{"fi_state":"1","spam":0,"hidden":0,"private":0,"item_id":"2712363","c_fldr_id":"1021473","c_username":"revolvybrain","c_user_id":"389","c_user_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/0\/389\/thumbs\/user.jpg","c_user_width":"300","c_user_height":"300","c_firstname":"Revolvy","c_lastname":"Brain","c_fldr_name":"Electric transformers","sort_folders":"1","c_num_items":"74","fi_updated_at":"03\/17\/2018 2:27 PM","fi_tstamp":"1521296864","c_fldr_count":1},{"fi_state":"1","spam":0,"hidden":0,"private":0,"item_id":"2712363","c_fldr_id":"1017335","c_username":"revolvybrain","c_user_id":"389","c_user_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/0\/389\/thumbs\/user.jpg","c_user_width":"300","c_user_height":"300","c_firstname":"Revolvy","c_lastname":"Brain","c_fldr_name":"Cleanup tagged articles with a reason field fro...","sort_folders":"1","c_num_items":"7033","fi_updated_at":"03\/17\/2018 1:03 PM","fi_tstamp":"1521291782","c_fldr_count":1},{"fi_state":"1","spam":0,"hidden":0,"private":0,"item_id":"2712363","c_fldr_id":"79866","c_username":"revolvybrain","c_user_id":"389","c_user_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/0\/389\/thumbs\/user.jpg","c_user_width":"300","c_user_height":"300","c_firstname":"Revolvy","c_lastname":"Brain","c_fldr_name":"Electric power systems components","sort_folders":"1","c_num_items":"74","fi_updated_at":"12\/23\/2014 3:38 AM","fi_tstamp":"1419305935","c_fldr_count":1}],"properties":9,"following":0,"saved_folders":[],"name_count":1,"elastic":1,"took":5,"vote":0,"elapsed":"32"},{"id":"3670812","item_id":"3670812","match":1,"item_name":"DIN rail","c_name":"DIN rail","soc_link":0,"cache":0,"item_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/images\/cache\/1f\/45\/c6\/1f45c6593f4d96527d08824e8aad0961.png","item_width":350,"item_height":328,"item_type":"topic","missing":0,"item_info":{"summary":"A front view of a populated 35\u00a0mm DIN rail    Rear view. Note the release loops at the top of the mounted devices which unclip them.   A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish. Although metallic, they are meant only for mechanical support, and are not used as a busbar to conduct electric current, although they may provide a chassis grounding connection.  The term derives from the original specifications published by Deutsches Institut f\u00fcr Normung (DIN) in Germany, which have since been adopted as European (EN) and international (IEC) standards.[1] The original concept was developed and implemented in Germany in 1928, and was elaborated into the present standards in the 1950s.[2]  Types  There are three major types of DIN rail:[3]   Top hat section, type O, or type \u03a9, with hat-shaped cr"},"level":"item","offset":17,"owner_id":"1575","owner_username":"Wikipedia","owner_image":"http:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/1\/1575\/thumbs\/me.jpg","has_image":1,"item_feedback":[{"fi_state":"1","spam":0,"hidden":0,"private":0,"item_id":"3670812","c_fldr_id":"195213","c_username":"revolvybrain","c_user_id":"389","c_user_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/0\/389\/thumbs\/user.jpg","c_user_width":"300","c_user_height":"300","c_firstname":"Revolvy","c_lastname":"Brain","c_fldr_name":"EN standards","sort_folders":"1","c_num_items":"64","fi_updated_at":"02\/07\/2015 11:01 PM","fi_tstamp":"1423350091","c_fldr_count":1},{"fi_state":"1","spam":0,"hidden":0,"private":0,"item_id":"3670812","c_fldr_id":"193014","c_username":"revolvybrain","c_user_id":"389","c_user_image":"https:\/\/d1k5w7mbrh6vq5.cloudfront.net\/data\/users\/0\/0\/0\/0\/389\/thumbs\/user.jpg","c_user_width":"300","c_user_height":"300","c_firstname":"Revolvy","c_lastname":"Brain","c_fldr_name":"Mechanical standards","sort_folders":"1","c_num_items":"51","fi_updated_at":"02\/07\/2015 8:49 PM","fi_tstamp":"1423342163","c_fldr_count":1}],"properties":9,"following":0,"saved_folders":[],"name_count":1,"elastic":1,"took":5,"vote":0,"elapsed":"34"}]