For cables in general, a filter on the cross-section would be great. It is currently very fiddly to find a T13 cable with a cross-section of 1.5 instead of the usual 1.0. When filtering for amperes, you very quickly end up with 10A or then 16A. The filter to 13A does not compensate for this either. Example: For an indoor fan heater, an extension cable with 1.5mm2 would offer significantly more safety buffer.
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Is there no extension cable that has a Schuko socket and a CH plug? So it's like an extension and adapter in one...
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Is there an extension cable with 2.5 square millimetre wires that has T12/T13 plugs?
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I have already discovered several extension cables with flat plugs. They are cheap because you can also plug them in behind cupboards. However, the plugs of the cables I have found so far are designed in such a way that they partially cover the two other sockets in triple sockets. The result: you can only use one of the three sockets. Does this have to be the case? Or is there a three-metre-long extension cable whose plug is not only flat but also designed in such a way that the two other slots remain free?
1