Outdoor security light

[jayk34]

Thought that it was time to replace the outdoor security light on the garage as it's a bit perilous trying to make it to the garage in the dark to pull a beer.

I got a new one from Screwfix yesterday and noticed that it was saying that I should loop the wire coming from the light below the home drilled into the garage wall. I'm not an electrician, so the only reason I can think of doing this is to minimise any water running down wire towards hole in garage wall (even though I have siliconed it up to prevent this).

Could anyone tell me why I need to install the light as shown in the diagram.

 

[The Baron]

Yes thats what I have always understood it is done for so we are good until the sparkies tell us different

 

[Chippy_Tea]

I think the first picture is a little overkill but it is defiantly to stop water running into the hole where the cable goes into the wall.

 

[Jim Brewster]

Also might be because if you routed it like the one on the right there wouldn't be any slack when it was pointing 30 degrees down, not leaving enough of a drip collector.

Sky dish installers don't seem to use this technique as I've seen water coming in on our cable

 

[Stevieboy]

Its a drip loop.