Is this necessary ?

kmjt1021

kmjt1021

Member
The first time I've seen these attached to a fan, the bolts holding them in place have to be removed to tilt the fan.

I wonder if I am liable if I don't get the cables grounded properly and lightning hit's it and starts a fire? Sounds like another debate.
 

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By the way, for you LA guy's the white stuff in the picture is called snow, it sometime falls from the sky and can create havoc for some people.
 
Snow?? whats that!
 
I only see rays of sunshine falling from the sky!
 
So back to the cables...are they really for grounding the fan for lightening protection?
 
They appear to be flexible enough, so why don't they attach them on the hinge side of the fan?
 
Yes tha't exactly what they are, in the one pic you can see the lightening rod
 
That's a lightening rod? the cables are bigger than the rod.

We get about as much lightening as we do snow, so we don't see alot of this around here.
 
You can't tell in the picture but they are attached by what looks to be a two-inch lag screw. I don't know what to attach them with that won't interfere the operation of any kind of hinge, the fan base is a tight fit.

And I don't want to liable for lightening strikes also.
 
Bryan,

I think if you check into it, you'll find that the lightening is supposed to strike the arrestors and then run down the cable to the fan, catch fire and clean the grease in the fan and duct. It's big in Afghanistan. It's the kind of setup you find in government buildings, here too!
 
If you look at the picture of the fan you can see that a lightening strike would have to go through the fan before it gets to the cables. Now I'm not an expert but shouldn't the cables be attached to the arrestor directly
 
I think the numbnuts who attached the cables saw the aluminum fan and figured aluminum doesn't conduct electricity so the attached the cable so that any lightening strike would fizzle out on the fan. The bad part of that is that grease is a conductor, so in the event of a strike it will all be cleaned. The odds of a direct strike are about the same as a shark attack at Wheeling.
 
there is also higher points on the building that would be a better place for the rod.
 
The rods and cables are on everything, each HVAC unit has four, one on each corner
 
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