Garage "Anti-Fall" Cable?

[SSE]

My electric garage door works fine enough but just noticed a cable on the top of it with a green wire and a white wire. It has a sticker round it saying "anti-fall cable". I'm assuming this is some sort of thing to cut it out if it falls to quick etc, anybody know if it's wired to the jb or the sw and how? Don't have a clue what make the door is as it's been in the house for years and I don't know what make it is to even check the manufacturers site!

 

[telectrix]

i,d say " if it ain't broke, don't fix it"

 

[SSE]

i,d say " if it ain't broke, don't fix it"

I had a feeling someone would say that! But my nose is getting the better of me and I need to know!

 

[telectrix]

no use asking me how it works. mine's been in for 3 years and still not powered up.

 

[Phil]

The device, adapted to be associated with a motorized hauling installation, comprises a self-clamping jaws block with a safety cable passing through it onto which the load can be transferred by clamping the jaws. The jaws block is connected by means of control rods to a mobile chassis of which one end is adapted to pivot, in case of a fall, about a fixed point of the casing, this pivoting action activating an electric detector which stops the machine motor.
*Patent
Author Year Title Country Assignee Number URL
Cavalieri, Michel (Neuilly sur Marne, FR), Batreau, Francois (Neuilly sur Marne, FR) 1978 Automatic anti-fall device for power-driven lifting machinery United States Europe-Levage Manutention (Elma) (Bagnolet, FR) 4106753

 

[jpmiff]

thats what i thought too