UK Please check my logic for upgrade lights project wiring!

[renegade]

Hi all,

I have some outdoor lights, and I want to update the circuit to add a bit more functionality. I have drawn a little picture of what I have now:

When we walk past the Outdoor PIR sensor 1, all lights come on, and then go off. This works fine!

Now the behaviour I want:

1. Add another PIR sensor to the other side of the lights
2. Add a dusk till dawn sensor (with timer)
3. Add a manual override switch in the house(so from inside the house I can turn on all outdoors lights, and leave them on if i want).

I have drawn a diagram of how I think this could work - and would like some feedback on whether my logic is correct and will give me the behaviour I hope for:

The Feed now goes to the junction box.

1. Sensor 1 -- Switch and Neutral wired to SW and N of Junction
2. Sensor 2 -- Switch and Neutral wired to SW and N of Junction
3. Normal Switch -- Live is wired to common with S1 wired to SW of junction
4. Dusk till dawn -- Live and N power timer (so i can control what time it should turn off at night time -- don't want it running till dawn, just 2am ish) -- this switch is wired to L of dusk till dawn. SW is wired to SW of junction box.

This should allow the following behaviours:

1. Somebody can walk past PIR sensor 1 or sensor 2 and it will trigger all lights on
2. Somebody can press normal override switch and all lights will stay on until the switch is closed
3. Dusk till dawn is powered between hours that timer controls, and will trigger all lights on when timer is on and dark is detected.

Does this look ok? Any feedback? Thoughts appreciated.

 

[marconi]

You might want to go through the logic of a timer switch before a dawn-dusk switch; the timer seems superfluous to me.

To avoid running cables to PIR sensors and override switch you could use these wirelessly connected devices to a receiver switch:

EasySwitch Easy Switch Wireless Switches - https://www.tlc-direct.co.uk/Main_Index/Pumps_and_Aquatics_Index/EasySwitch/index.html#EasySwitch

The use of the wireless receiver switch would allow the use of fobs which folk could carry or be left in the car and could obviate the need for the override switch. If you still wanted a separate override switch there is fixed wireless switch which would suit.

Are you bothered about animals or on windy nights swaying trees setting off the PIR for the lighting - it could become annoying.

You might want to think also about beam cutting or retro reflective sensor switches eg:

Takex PR-11B 15m Reflector Beam Sensor - https://connectec.uk/security/intruder-alarms/perimeter-detection/takex-pr-11b-15m-reflector-beam-sensor?gclid=Cj0KCQiAuefvBRDXARIsAFEOQ9GDzyPYfHUOqPWb_5qbAd42I19Gnw5kjYKs1ci9rJVFhd55uzDUvBQaAs_rEALw_wcB