What is such a circuit called?
So, I have 20-year-old wiring in my basement and I'm doing some detective work.
There are 3 buttons and 1 toggle switch (at least I think so, it's already been removed, but it could have been a button if in doubt) that all switch a latching relay in the fuse box (which in turn switches on a transformer so that the ceiling light comes on).
3 buttons only need the contact between phase L and neutral conductor to switch and the toggle switch has 4 inputs:
A live black cable, then another black cable connected in parallel to the same terminal (without this contact, another button will not receive any power on phase L) and 2 neutral wires connected in parallel (without this parallel connection, this other button will not switch either).
Is this called cross connection or is it something else?
(1 votes)
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Probably it was a probe. Due to the fact that both cables are connected in parallel, one saves the luster clamp and thus has more space in the underput box.
When you press the button, the black and blue cables are connected to each other, thereby switching the relay.
Thank you. So, a normal probe circuit? An idea why the outgoing (leading to relay) cables are blue (neutral conductors)? Doesn’t the neutral conductor sit on the power surge relay?
My blues are in this picture these pink/pink
The current must be returned to the relay via some vein and normal power cables do not have a pink vein. The next best thing for an electrician is probably simply the blue one, because it is not normally under voltage and is also used for sockets and lamps to get rid of the consumed current.
The alternative would be to take another black vein for it, but then one would have to measure again every time what is to not produce short circuits.
Just as a supplement to the legal side when you’re laying around electrics
https://renov.net/general/electro/electroworking-self-made-the-legal situation/
Oh. Well, then you would have to measure whether the other two buttons are somehow connected, but then your drawing makes more sense.
So when I cut the L phases at the upper probe, the L phase gets no more voltage at that.
Aaah ok understand, I made it extra so, as if I (see my supplement) completely separate the upper button, the one under it no longer works, but the other 2 already
I actually meant that they all hang on a chain, so not that probes 1 and 2 are in their own circuit.
In can’t insert a picture in a comment, but it should look like this:
I hope the drawing is understandable 🙂
So more like in my supplement now?
That’s it. In the other probes, the two cables are probably also looped through as in the first probe.
So the cables do not pass individually from the first pushbutton to all the others, but they hang like a chain one after the other on both sides.
And the connection between the switching wire and the relay is still missing.
Thank you. Can I imagine that on my chart? There I also drew the first probe so that the 4 phases can be seen there
Even if the cables are blue, it is not the neutral conductor. If he were, you’d have a full short circuit when the probe is actuated, which lets the fuse fly.
This is the switching wire to the power surge relay in the switching box. Phase and switching lead go to the first probe and from there continue to the next.
Thank you. Can I imagine that on my chart? There I also drew the first probe so that the 4 phases can be seen there
It’s just a phase that’s run to 4 sasters. Whether these are now starting from one point or being forwarded from the pushbutton to the pushbutton is no matter.