Interlinked smoke alarms don’t necessarily have one source of supply. My sensors are powered from two separate circuits off the CU and law in Scotland allows mains powered and lithium 10 year battery detectors to be interconnected.
The recent law insists that all detectors within a house are...
Not recommending it but couldn’t you power off all circuits and use a tone / probe type instrument to send a signal and find the circuit?
Obviously , check circuit isn’t live before doing it.
I have heard of people using a 9volt battery and tasting the other end but definitely not recommending...
One of the techniques for finding problems is to disturb the cables. This checks for poor connections . Given you documented this above , it becomes likely that there is a bad connection either in the positive or negative wiring . It is also possible that this is temperature related.
in older...
Interesting question with every one working from home. If you work from home is that then a commercial environment. It maybe someone registered business address like a sparky
The aico system uses unique encoding system to prevent detectors firing (pairing system) but obviously other systems might not.
they may be 10 year lithium battery units.
these are recommended in Scotland by law as well as mains powered.
Most interesting question.
From a safety point of view, if all detectors have battery backup and all are tested, then other than evacuating buildings unnecessarily, it must be safe as everyone is warned.
the danger of false alarms over tcausing people to ignore the real one may be a risk.
The...
Some of this was considered some time ago. The man who designed Letchworth , the first garden city thought that the town would have about 6 cars which would be shared.
You forgot that the long term is that no one owns a car. You dial up and a driverless car arrives and takes you where you want to go.
This implies car parks of cars strategically placed with power points.
depending what you pay there may be cars doing small detours to pick up people going in...
Please get a proper spark in. If you ask him if he is 18edition qualified.
as an aside but not giving you any reason for not doing the above :
it could be static electricity where you build up static depending if you are wearing nylon etc. The static is released when you touch a metal surface...
So let’s place bets:
my bet goes that it is a wonky earth connector near the battery / fuse box where the connection is rusted or loose . This includes the battery clamp.
long shot!
Given the extent of the problem, I guess the one should concentrate on the common area - battery , battery clamps, fuse box entry ( several fuseboxes?) .I
I had a car stopped instantly , nothing working . Problem was a connection at a bolt. (I can’t remember if it was live or a connection to the...
Part of parasitic loss is to measure the current being used (preferably using a clamp meter) .
so a good question is “ what current is being drawn from the battery “ when not working.
If there is a high current being used, then you have a short somewhere.
Good point - but if there is a short circuit on any circuit, the voltage drop might be sufficient for things not working while others using very little current might work.
Can you clarify the boot locking? Is it the central locking working for the boot or are you pressing a different button to...
This won’t work if the fault is from the battery to the fuse box. Obviously another check is to check that the voltage entering the fuse box is correct. If you don’t have voltage there. Then check the voltage to the ignition switch . Perhaps quicker to check at the starter motor.
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