Construction Services and Equipment II

Generation and distribution and of electricity. Supply to industrial buildings. Supply to small and residential buildings. Supply controls and protection of installation, fuses and circuit breakers, switches and outlets. Cables and conduit: cable – type, conductors/cable rating, cable sizing. Circuit: sizes, rating and voltage drop, earthing. Electricity distribution in small buildings, large /tall buildings. Electricity supply regulations. Economics of supply: tariffs, load factor, power factor and power factor correction. Mechanical conveyors in high rise building, lifts, escalators paternosters etc., electrical installation – installation, metering consumer distribution system. The phase system, wiring system (conduit, surface etc.) fire prevention – fire and firefighting equipment in building, building regulations. Gas services, sources of natural and town gas, installation and distribution within buildings basic electrical theory and terms.