![]() It can be freely copied and distributed within your school. ![]() Pull the old one from the spark plug and the distribution cap and replace it with a new one. We have provided a copy of this sheet (see above in downloads section). An easier method to do this is to replace the spark plug wires one at a time. ![]() This sheet includes a simple drawing of a plug and all of its components which can be cut out and arranged correctly into pupil books. Some teachers may also require a 'cut-out' plug worksheet to either accompany or be used instead of this practical lesson. You may need to check the equipment before each use to ensure all fuses and cable grips and screws are intact and all cables are long enough to be used properly. These should also have shrink sleeving or insulation tape applied to the free end so that uninsulated wires are not exposed in case all other safety precautions should fail. Read more10 Cars That Weigh around 1000 Kg Kilogram. You will need a 3 phase plug, a screwdriver, wire cutters, wire strippers, and electrical tape. Before you begin wiring a 3 phase plug, you will need to gather the necessary materials. The cables used can be any type of mains three strand cable, available from many suppliers and high-street outlets. Step-by-Step Guide to Wiring a 3 Phase Plug. To increase safety, where possible isolate the mains sockets in the classroom being used by turning off the power at the master switch. Several layers should ensure a tight fit and make sure the pin will not fit into the socket. Use a heat gun to directly heat the band where it will shrink around the pin. The first hole, or left hole, is called neutral. Shrink sleeving can be purchased in lengths from electrical retailers such as Maplin and Rapid. The live wire - carries the alternating potential difference of 230V from the supply and is connected to the fuse on the right-hand side of the plug. The circuit breaker is connected to each of your outlets by wiring. Either bend the earth pin slightly, drill a hole in the earth pin and put a nut and bolt through it or as in these photos, attach a band of shrink sleeving to the earth pin. The plugs should be 'doctored' to ensure they cannot be plugged in. The following precautions are included for guidance only, further clarification can be sought from CLEAPSS and ASE. The main possible danger in this practical is that a pupil will wire a plug using a length of cable and then plug it in to a live socket, risking electrocution. If they do not have this sleeving, change them. All plugs used in your school and home should now look like this. All modern plugs have black 'sleeves' on the live and neutral pins to protect fingers when plugging and unplugging and also to prevent accidental contact between metal objects and the pins. The plugs used are typical mains three pin plugs. The lesson essentially involves pupils correctly wiring a three pin mains plug to a length of cable. UK 13A 3 Pin AC Electrical Power Wiring Male Plug Socket With Led Switch Detachable Extension Cord Plug Type G Adapter With Fuse easy to install and use.
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