Hello,you're welcome again to our blog known as "ELECTRICAL ENGINEERING". Today we are going to look about the Main Switch, (the meaning,and it's types). THE MEANING OF MAIN SWITCH:- It's a device of Electricity which receive the electric power from Mains supply and distribute to the appliances circuit.
1.TYPES OF MAIN SWITCH: We have two types of Main Switch or Distribution Board or Distribution Fuse Board which are: a/ SINGLE PHASE MAIN SWITCH, which in professionally is called SINGLE PHASE NEUTRAL and its abbreviation is (SPN) b/ THREE PHASE MAIN SWITCH, or THREE PHASE NEUTRAL and abbreviated (TPN) DISTRIBUTION BOARD it has a Switch inside called ISOLATOR and it's operating ON/OFF manually by hand. Electric Supply can be formed by TANESCO, Generator, or Solar Energy. This is among the important Protective Device of Electrical Installation,which put a house and customer/user to be in safety environment. It's HOUSING contains small devices like: 👉CIRCUIT BREAKER, 👉ISOLATOR, 👉MINIATURE CIRCUIT BREAKER (MCB), 👉NEUTRAL WIRE LINK/BAR,and 👉EARTH WIRE LINK/BAR. ->NEUTRAL WIRE LINK This is an iron bar where all neutral wire from the circuits and appliances are collected and tighten,where meet with supply MAINS neutral. ->EARTH WIRE LINK A piece of iron bar which collecting earth wire from Ground Electrode with circuit earths from appliances. ->ISOLATOR SWITCH This is a switch that turns on and off Electrically Manually when you want to Service your Electrical systems, short circuit adjustments etc. Also technically Electricity from Main Source is recommended starting with ISOLATOR SWITCH and not starting from CIRCUIT BREAKER the main reason being the ease of making adjustments to CIRCUIT BREAKER when its Magnetic coil fails to work. ->CIRCUIT BREAKER This is a great device for protecting your home against Short circuit, Electric Leakage and is the only device that can save you in the event of serious electrical damage and leave your home safe. This device works Automatically only in the event of a power outage whether inside your Electrical systems or outside your Electrical systems. ->MINIATURE CIRCUIT BREAKER These are the distributors of Electricity in a Circuit or equipment and distributes electricity at the current rating level depending on the use of the respective Circuit.MCB also works to protect the individual Circuit against Overload, Short circuit and may be an assistant to the CIRCUIT BREAKER. Let's finish here for today,for more enquiries write me a comment down here. Your Technician: Patrick Manuma