By request:- A basic guide to identifying components and their functions for those who are new to electronics. This is a work in progress, and I welcome feedback from you guys on whether I should break it down into more manageable chunks. I’ve kept the maths to a minimum, since it can be off-putting to someone just getting started in electronics.
The idea of this video is to slot in some more of the jigsaw pieces involved in learning electronics, when you start to recognise components, but aren’t quite sure what they are or what they do.
It’s tricky to squeeze even the basics into a single video, and I’ve just realised how long this one is (and why it took all night to upload).
If you enjoy my videos you can support the channel with a dollar for coffee, cookies and components at https://www.patreon.com/bigclive
Here is my updated best budget smart home tech under $50. Top budget smart home tech under $50 was the most popular category for 2018 so I wanted to follow up. These cheap smart home devices will give you a great base to build the Ultimate Smart Home so stay tuned for my full smart home tour for 2019 so you can get smart home ideas with alexa and google both. If you love the smart home setup and like budget smart home tech let me know so I can make more videos on budget smart home devices. Would you like to see a budget smart home plans and a budget smart home setup? Subscribe for more budget tech and smart home technology videos.
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Echo Dot (3rd Gen):https://amzn.to/2ENSsfl
Google Home Mini: https://bit.ly/2VEszUV
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Echo Input: https://amzn.to/2Ey4lVw
Teckin Smart Power Strip: https://amzn.to/2VGsq3t
Philips Hue White Bulbs: https://amzn.to/2TdQo9g
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TP Link Multi Color Smart Bulb: https://amzn.to/2UkFpY7
Wiz Multicolor Smart Bulb BR30: https://bit.ly/2SHgoVn
Wiz Multicolor Smart Bulb: A19: https://thd.co/2TezN5n
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Note that in this video the panel is new and has no external circuits connected yet. When wired in and active there is a lot of exposed live metalwork that poses a shock risk. Changing a consumer unit is not a simple DIY task due to the presence of a high current supply that poses a shock and burn hazard if touched or bridged.
In the UK we have a really simple electrical system. Just a three phase system with 240V between each phase and neutral and 415V between any two phases. (230V/400V under European tolerance standards.)
A typical home will get a single phase and neutral with the three phases spread amongst homes in a street, while a factory or commercial premises will usually get all three phases.
The higher voltage means lower current and the single phase means that our consumer units (home electrical distribution boards) are very compact and simple inside.
Traditionally they contained an isolator with a busbar that went along a horizontal row of breakers, but these days the breakers are often grouped in sections, each protected by its own main RCD/GFI. This allows the RCD/GFI to protect all the wiring in the circuit and also ensures that if a leakage fault does cause an RCD/GFI to trip, it only turns off a small number of circuits in the house. In some instances every single circuit may have its own RCBO (Residual Current Breaker with Over-current) which protects each circuit against overcurrent and fault leakage.
The use of a DIN rail for mounting the breakers means that the panel can accommodate other modules if desired. Commonly things like time switches and power supplies. Alternatively a consumer unit can be used purely as a handy housing for a row of DIN modules with the added advantage of integral power busbars.
A typical British home gets a 60A utility fuse these days, although for larger homes or applications like vehicle charging that can be upgraded to a higher value if the incoming cable is suitably rated.
Typical circuits in a consumer unit are:-
Lighting. A radial circuit protected by a 6A circuit breaker. Usually wired with 1mm or 1.5mm CSA cable. The circuit usually bounces from room to room passing through a ceiling rose connector that makes it a very versatile system for lighting.
Radial power. Often a 16A breaker feeding a special application like a heating boiler control system or immersion heater. Usually wired in 2.5mm CSA cable.
Radial circuits are also used for high current loads like cookers and showers with suitable cables and breakers.
Ring power circuit. An unusual approach to running lots of high current sockets with a loop of cable that starts and finishes at a 32A breaker. Usually wired with 2.5mm CSA cable. People make entire careers out of inventing new and pointless ways to test ring circuits. Sometimes called a ring main as the first circuits were based on power distribution ring mains that are used in the electrical utility industry. Now called ring final circuits, a new name invented by the department of paperwork.
Other components to follow in future videos.
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Giving an average of how much electricity homes use is very difficult, because there are so many different variables from one house to another. Here are some things to consider about your home to reduce your electric bill.