Strange wiring???any sense from it?

[highspark]

Just been to call out. Car park lights not working. Fiddled round for 10 minutes got no power at any of the lights but 230v at timer in and out. Switched timer to permanent. Lights come on then 2 mins later off again.

Had a good look round and spotted a sensor on side of building. Covered sensor with wooly hat and hey presto lights workin on permant and timed.

Why oh why has someone installed a day/night sensor with a timer aswell? Any thoughts?

 

[highspark]

This is a block of flats. So there is no required time for them to be on and off except when dark. It's of my view that all tenants have no idea when everyone will arrive home. So they want them on all night in the event that a tenant arrives home at any time. Which could and probably does happen.

Now a timer can be set to switch on at a certain period of time and off at another. It can be set to permanent or not at all! Via a switch.

A photocell comes on when dark and off when light. It can also be used manually as pointed out by the use of a switch.

So why use both there is no logical reason to for this installation! One or the other

 

[Guest111]

This is a block of flats. So there is no required time for them to be on and off except when dark. It's of my view that all tenants have no idea when everyone will arrive home. So they want them on all night in the event that a tenant arrives home at any time. Which could and probably does happen.

Now a timer can be set to switch on at a certain period of time and off at another. It can be set to permanent or not at all! Via a switch.

A photocell comes on when dark and off when light. It can also be used manually as pointed out by the use of a switch.

So why use both there is no logical reason to for this installation! One or the other

tight fisted landlords?

 

[telectrix]

better still. a timer and photocell in series, with a PIR parallelled across both. then it's everything phil said + anybody moves, providing it's dark.

 

[highspark]

Your probably right, regarding tight landlords. But they won't be so tight minded when one of their tenant falls down steps because it's pitch black to save a few bob between 2 am and 6am

 

[Sparky Ninja]

The installation offers better control of the installation and allows for preventing energy wastage.

It is what it is, it's installed similarly everywhere.

 

[pjcomp]

It can also be used manually as pointed out by the use of a switch.

But surely the whole point of the photocell and timer is to automate things. Manual switching is inconvenient because the user has to find the switch, and it can be left on or off. Point taken about people falling over if they get home after the timer has switched off - presumably the flats' management committee/managing agent has taken all the above arguments into account when deciding what they wanted.

PJ

 

[telectrix]

that's where a PIR comes in. even if the timer has switched the lights of at, say, midnight, ant tenant staggering home after that will activate the PIR and thus the lights, then he can see what he's falling over.

 

[pjcomp]

If anyone is so uncivilised as to still be out of bed after 10pm, he deserves to fall over!!!!

PJ

 

[truckster]

Must be Tels house!

 

[Guest111]

Your probably right, regarding tight landlords. But they won't be so tight minded when one of their tenant falls down steps because it's pitch black to save a few bob between 2 am and 6am

wish someone would tell my council that,drives been uneven for 2 years reported in again before easter fell over and sprained wrist at easter rang again and told them i had been hurt and they say it will be done in july.wish i,d sued them.

 

[ackbarthestar]

better still. a timer and photocell in series, with a PIR parallelled across both. then it's everything phil said + anybody moves, providing it's dark.

Put in a frost stat.as well just in case the temperature drops suddenly .......