Everyone should understand the basics of a correctly wired 3-pin plug, and also be able to recognise any errors. If you don’t then this guide is for you. Depends on why your PAT testers are asking, if the equipment is blowing 3amp but not 5amp fuses, it’s less of a risk having 5amp as they don’t create a fire hazard. Cylindrical fuses are a basic design and many of the most widely used and familiar models fall within this category. HRC Fuse Types

An electricity cable (or flex) used for connecting an electrical appliance to the plug will usually contain two or three wires wrapped in coloured insulation. These are commonly called “ two core“, or “ three core” cables; not to be confused with “ twin and earth” which is the term used for mains wiring cables, although there is no real reason why the terms can’t be interlinked. How to wire a plug– this article is intended to guide you in wiring a plug or rewiring a plug, so that when you have to change a plug at home or work you know how to do it correctly. Striker fuses are fuses fitted with a spring-loaded striking device that can trip adjacent switches and also indicate that a fuse has blown. Type C Fuses You would hope so Chris, but it is often not so these days as manufacturers make things cheaper and cheaper so they reply on upstream protective devices, nobody wants to pay for safe equipment, everyone wants cheap equipment. The wires are cut to the wrong length– To be fully correct, the coloured wires should have been cut at better lengths so that the white covering is fully into the plug before it is secured. Most plugs actually have a cable grip that screws across the main outer insulation sheath.Thermal fuses have both a holding temperature rating and functioning temperature rating, both measured in celsius. The holding temperature is the range in which the fuse will hold without blowing. Meanwhile, the functioning temperature designates the lowest temperature at which the fuse will blow and break the circuit. Obtain the tools you will need - typically fuse wire, wire cutters, a screwdriver and a torch so you can see what you are doing Step 4: Now we’re making progress rewiring the plug – next you need to put each wire into the appropriate terminal pin, and tighten with the screw to secure the copper in place. Start with the live (brown), then the neutral (blue), and finally the green and yellow (earth). When each is secure, position it in the indents of the plug top so it is neat and tidy. Just change the fuse as the load will not exceed 3amps, so it should be fine 2018-01-11T22:05:02+00:00 A typical identification plate which can be found on the base of the kettle could show the following information 220–240 Volts – 50 Hz 1850 to 2200 Watts the ID plate shows that this is a kettle that is suitable for Europe 220 V (1850 Watts) and the UK 240 Volts (2200 Watts). The 50 Hz is a frequency and is not required for the calculation.

Be warned, if you are tempted to use something like a paperclip or piece of tinfoil wrapped around an old fuse or a nail, don’t. It is extremely dangerous and could result in electrocution, a fire or total failure of your appliance. I’d just buy a 3a fuse and use a plug top safest and cheapest way, if there’s a fuse spurs there just change the fuse in the carrier to 3a once the cables been correctly wired in (by a competent person) 2018-01-10T20:35:02+00:00Thermal fuses are used in settings that produce heat. The internal resistor blows when the surrounding temperature reaches a certain level and the fuse must then be replaced with a fully compatible new one. Once you have replaced any necessary powerpoint fuses, locate your fuse box, using your torch if necessary. Ensure that the master switch is in the off position. It should be following a trip, but you should always make sure that this is the case

So from this calculation the ideal fuse would be the one amp fuse, but again, most manufacturers will have put in a three amp fuse. Typical example: A Kettle. Ultra-rapid fuses: typically used in sensitive circuitry and transistors to protect against short circuits, reacting almost instantaneously. These are also known as Very Fast Acting, Super Rapid and High-Speed fusesResettable SMD fuses, by contrast, can be used multiple times. They function in a similar way to resettable thermal fuses and are available in multiple sizes and capacities. Striker Fuses All rights reserved. Reproduction in whole or in part in any form or medium without express written permission of DIYnot Limited is prohibited. Despite their everyday name, domestic fuse boxes now typically contain circuit breakers rather than fuses, and they are more formally known as consumer panels. However, if your property still contains a traditional model, here is how to go about changing the wire in a fuse if it blows and cuts the power to one of the circuits that run through the building.