Re: Causes of Ground Faults

["Roland" <roland@xxxxxxxxxxxx>]

>heat detector and pull station  in restaurant kitchens getting >sprayed
>down during nightly cleanup

This is one of my all time favorites, especially when it fills the pipe up
behind the device. Then the customer says that YOUR installation is junk
(because they can't pressure wash an electrical device)! After that it is
always nice to have them stand right there when you remove the device and
hear the water making a good glug-glug-glug sound as it pours onto the
floor.
Please sign the service ticket, thanks and see ya next time!
I have had customers in auto garage shops pressure wash keypads, but it's
just not the same type of fun for some reason. Mostly because the system
goes nuts and it looks like the keystone cops as they try to turn the system
off without a working keypad.


"Michael" <sirflannelS@xxxxxxxxxxxx> wrote in message
news:j5geo2535pd69ppr41o5sliiccahf8cp3q@xxxxxxxxxx
> On 18 Dec 2006 12:12:04 -0800, jonlevis@xxxxxxxxx wrote:
>
>>I have been asked to present a training seminar regarding fire alarm
>>systems, in particular addressable systems. I am looking for common
>>causes of Ground Fault Troubles that people have come across. Any one?
>
>
> Let's see....
>
> Wires stripped back too far behind devices touching back box
>
> wires stripped back too far in the control panel
>
> wires pulled tight and tye wrapped or secured around sharp metal
> corners
>
> wires pulled roughly during wiring, causing nicks in the wire
>
> heat detector and pull station  in resturaunt kitchens getting sprayed
> down during nightly cleanup
>
> leaky roof above smoke detector
>
> non-weather resistant horn strobe placed outside, moisture getting
> inside box, corroding wire and damaging horn strobe
>
> 50 feet of slack crammed into a 4-O box behind a horn strobe getting
> nicked and crushed inside the box
>
> Anyone think of anything I missed ?? <g>