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Electrical design
at 28day
Challenge
By Facebook pages:
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1- :
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7- RCBO (Residual Circuit Breaker with OverLoad)
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8- Difference between ELCB and RCCB
http://www.neweysonline.co.uk/neweys/pdf/Merlin_Gerin_Circ
uit_Breaker_Application_Guide_Technical.pdf
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erehw snoitacilppa ni desU .dedivorp si noitalitnev fo tnuoma
.etaredom si detareneg taeh
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3- : ladder type
Used in application where heat generated is high and where a
longer span length can be achieved considering the correct
distance between rung.
0- : duct type
Used where heat in the carriage of telecommunication and
electrical cable is minimal, as well as to increase the
preventive characteristics in outdoor applications
3- : Wiremesh
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Used in the carriage of low voltage, telecommunication and
fibre optic cables with short span length availability and
under indoor conditions
6- cable trunkings
Used where small amounts of telecommunication and
electrical cables are carried.
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http://www.egsa.org/Portals/7/Documents/Standards/EGSA%20Silencer%20Rating%20
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C007408G0201.pdf
http://power.cummins.com/PWON/PowerContent/WebConNA/SiteContent/en/Binary_Asset/pdf/literature/broc
hures/F-1822-TransferSwitchesIntl-en.pdf
http://www.gulboy.com/mailing/pdf/IzolasyonBy-PassBrosur.pdf
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Fire Fighting pump -1
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- Conductors supplying only a fire pump motor must have a minimum ampacity of at least 125% of the motor full-load current rating If these conductors also supply related equipment, such as another fire pump motor, pressure maintenance pumps, and associated fire pump accessory equipment, they must have a minimum ampacity of at least
123% of the sum of the fire pump motors and pressure maintenance motors full-load currents and 100% of the associated fire pump accessory equipment - The voltage at the line terminals of the fire pump controller, when the motor starts (locked-rotor current), must not drop more than 15% below the controllers rated voltage - Ground-fault protection of equipment is not allowed on fire pump equipment The NEC doesnt prohibit you from installing GFCI-protected receptacles in a fire pump location for portable equipment or other outlets required by the NEC to be GFCI protected.
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1-
https//:www.titus-hvac.com/softwares/MOPulator/pdf/howwecalculate.pdf
http://css.wsu.edu/wp-content/uploads/2012/09/Motor-Controllers1.pdf
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