But if that, and asking your neighbors, fails...
I just pulled this from the Baar Gemeinde website:
http://www.baar.ch/de/portrait/firme...ehmen_id=67723
It says this firm has a 24h emergency service.
This is just the first I clicked on from the list of electricians in the Baar Gewerbeverband. There are likely others offering Notfalldienst/Pikettdienst as well.
No personal experience, just googling.
Be aware that you will likely pay a premium for an emergency after-hours call-out.
Hope it gets fixed soon.
If you go ahead and call out a repair service yourself, you will most likely have to cover this bill yourself - and it may very well not be reimbursed by the landlord later, especially if you did not follow the procedure.
If you live in a rented flat, you should check in the hallway or near the front entrance of the building. Often, there is a notice hanging there of what to do in emergencies.
If there is none, then phone the numbers you can find on your rental contract/correspondence... sometimes a taped message will tell you what to do.
And yes, ask your neighbours.
If you do go the route of calling the electrician yourself, be very, very sure to get all the paperwork from him/her, so that you can try to get a refund from your landlord. Most especially, ask them to write down if the fault was part of the building.
If you google for Notdienst / Notfall & elektriker a good amount of them will pop up.
Really good/quick and very professional. Serves the Zug/Baar/Cham etc area.
Out of curiousity, where you in any way at fault for the problem? If not, then the landlord should pay.
The electrician explained that there was moisture in the electrical pipe. He's only seen this twice before in his 20+ years of work. Apparently it usually happens during build, where pipes have been left outside and get wet, then installed. The various wires were also loose i.e. not packaged within an insulated housing, which he fixed.
I don't get the last bit - the wires are usually loose inside the conduit, obviously they're individually insulated.
Re: the wires, yes individually insulated, but no outer casing, like this: https://4.imimg.com/data4/KA/PN/MY-7...es-250x250.jpg
Fixed installations normally use solid core cables without the outer casing, in a conduit, unless it's in a ceiling void for example. Older buildings also used an outer casing where the cable was directly covered in plaster.
Things may have changed; I see Hornbach are showing stranded cables as valid for fixed installation, which surprises me as I thought that wasn't valid due to the increased corrosion they suffer from.
But in any case, the outer casing is irrelevant to the sparking, or the water.
I never heard of corrosion being a reason to not allow stranded cables in building installations.