Calculate the minimum size of trunking required to accommodate the following single core thermosetting insulated cables:...

 

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Calculate the minimum size of trunking required to accommodate the following single core thermosetting insulated cables: 5x 1.5mm² solid conductors 15 x 4.0mm² 5x 10.0mm² stranded conductors stranded conductors Five 4.0 mm² PVC insulated cables are to be drawn into plastic conduit which is 6 m long between boxes and contains one bend. a) Determine the minimum size of conduit to contain these conductors. b) According to standard conduit sizes in the UAE, what would be the chosen conduit size? Six similar single-phase circuits each having Is = 8 A are to be wired in single-core 70°C thermoplastic insulated non-sheathed cables having copper conductors. The cables are clipped direct and totally surrounded by thermally insulating material (C₁ = 0.5 according to Regulation 523.7). If the ambient temperature is expected to be 45°C and each circuit is protected by a 10 A miniature circuit breaker against both overload and short circuit, what is the minimum cross-sectional area of conductor that can be used? Calculate the minimum size of trunking required to accommodate the following single core thermosetting insulated cables: 5x 1.5mm² solid conductors 15 x 4.0mm² 5x 10.0mm² stranded conductors stranded conductors Five 4.0 mm² PVC insulated cables are to be drawn into plastic conduit which is 6 m long between boxes and contains one bend. a) Determine the minimum size of conduit to contain these conductors. b) According to standard conduit sizes in the UAE, what would be the chosen conduit size? Six similar single-phase circuits each having Is = 8 A are to be wired in single-core 70°C thermoplastic insulated non-sheathed cables having copper conductors. The cables are clipped direct and totally surrounded by thermally insulating material (C₁ = 0.5 according to Regulation 523.7). If the ambient temperature is expected to be 45°C and each circuit is protected by a 10 A miniature circuit breaker against both overload and short circuit, what is the minimum cross-sectional area of conductor that can be used?

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