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zakruti.com » Knowledge, science, education » GreatScott!
How to do Electrical Wiring properly! (more or less) GERMAN STYLE!

How to do Electrical Wiring properly! (more or less) GERMAN STYLE!

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video description

Rating: 4; Vote: 2
In this video me and my friend will show you how to do electrical wiring properly. That means we will remove the complete electrical system of his garage and install a new one. We will be talking about/showing you how to mount and wire up a new distribution box, install circuit breakers, mount electrical components like outlets, switches and lamps, install conduits, lay cable and finally how to connect all the components to one another
Date: 2021-01-18

Comments and reviews: 10


For all the people who don't have those spring terminals but a screw terminal. If you use solid core wire with the screw terminals style components. You need to check/retighten the screws after you press the whole e. g outlet internals into its housing. Since if you move/wiggle the solid core wires you could create a little space in the joint that could lead to a fire in the worst case. If you want to do a test for yourself find a screw terminal style component, tighten a solid core wire, wiggle it, and then try to tighten it a bit more and you will feel that you can tighten it more.
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As boss of a German electrician company I would have done a few things different, but all in all a nice job.
At first I should mention the IP rating of the distribution box. It should be waterproof in a garage acc. To VDE.
To be more flexible use i12 instead of sd7 as junction box. So you can fit up to 3 cables from one side.
Additionally I would try to avoid cable and conduit crossings for example by using 5x1. 5 and junction boxes by the lamps. When it have to be put the cable under the pipe.
All in all a nice video

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The lighting circuit must be a separate circuit with a second automatic protection - 10A. This is EU standard. After the fault current protection RCBO, there must be the next conventional current protection. Fault current protection RCBO is not suitable for current protection. So, there must be 3 devices for automatic protection in the control panel. A cable of 1 square mm is sufficient for the lighting installation and 2. 5 square millimeter mm for the sockets.
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Great video. Few questions: ok to have plastic only junction boxes/outlets/conduits on what looks like polystyrene insulation? And plastic LED lamps on 16A breaker? What breaking characteristic and residual current protection type did you pick? Any metallic backbone required for the installation to prevent conduit collapse in case of fire?
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I found it pretty interesting in a previous video on mains wiring that Germany distributes three phase power to residences, since I live in USA where we have split phase 120VAC via center-tap transformers. Do any German appliances use all three phases? Could you do a video on power distribution in Europe, maybe even compare with USA?
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6: 58 You put a B16 RCBO after 6 amp fuse, so you are using only the RCD Part of it? Because in case your Kabel is overheating or there is a short circuit, the 6A, even as the melting fuse beeing much slower, it will most likely pop first. But beside that, I have to say clean work your friend did there, thats sadly not always the case.
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Similar as the Uk would be done. Aside from the gap between box and conduit. That's crazy and looks unprofessional if you ask me. Is there a reason why this is done? Also not sure what the junction box was for? Surely you have two circuits one for the lights, one for the sockets? I see no need for a junction box
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Don't like the exposed cable between the box and conduit.
In North America we use galvanized steel conduit as an unbroken line of armor from box to box.
If you don't use conduit there is cable with flexible steel sheath that attaches directly to the box. This method is OK for your garage application.

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I have some questions;
- Are the conduits just standard PVC pipes?
- You added a RCBO to the circuit but left the ceramic fuse anyway, why?
- The lamps you bought look like LED and usually led lamps do not have protective ground terminals (as seen on video) where did you put the ground wire, why?

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I recently moved to Germany. In India, little or no standards are followed for electrical work. I have acceptable level of knowledge/skill in electrical work. I want to learn the German standards and improve my skills as a hobby/weekend work. Could you please give a guidance on it?
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