synchronised wiring of a domestic home

[Mikegh]

You can incorporate a timer into the output of the sensor a lot of commercial sites do this to stop light pollution. A sensor will keep the lights on all night but using a timer can switch them off before dawn.

Ya I seen that referenced before

Sensor before timer so you're not inadvertently triggering the sensor with the timer

 

[westward10]

Ya I seen that referenced before

Sensor before timer so you're not inadvertently triggering the sensor with the timer

The timer only switches the switched output of the sensor.

 

[Mikegh]

The timer only switches the switched output of the sensor.

Yes I know

 

[Mikegh]

many Pir’s turn the output on for a few seconds on power up as a self test.
I suspect that the supply to the pir(s) is fed from either a central timer or a central dusk till dawn sensor.

so each of the parts are probably working as they should but the design of the system is poor and leads to the lights coming on briefly at dusk.

edit, just re read post, if this is happening every few minutes, it is simply not right.
I would be telling the spark that it doesn’t work correctly and difficult or not, they need to sort it out.

Also a pir feeding a self -test pir could make sense also , maybe from a pir on the landing

Probably turn out to be none of the above lol?

 

[littlespark]

Whatever it is, and how it’s been wired …. It’s obviously not right.

They need to come back and fix.

Would like to see a video of this, if possible.

 

[Electrics]

Sounds like some sort of timer/PIR/sensor mash up.

 

[Vortigern]

I wonder if it is an LED cctv which has a DVR in the loft. If the LED is not set correctly at the DVR it will flash on and off.

 

[Rockingit]

It could also be as simple as a loose connection!!

 

[snowhead]

Whether it's a fault, done by design or something interfering with it, it can be and will need to be sorted before the neighbours complain to the Local Authority.
Artificial light nuisance is covered in the Environmental Protection Act.

 

[Mike Johnson]

I have heard of synchronised, swimming, dancing, diving and lots of other things, but synchronised wiring is a new one on me. ?