Re: lightning

[Matt Ion <soundy106@xxxxxxxxx>]

On 14/09/2009 3:34 PM, nick markowitz wrote:
> On Sep 14, 5:35 pm, "Bob La Londe"<nos...@xxxxxxxxx>  wrote:
>> "Christopher Glaeser"<nos...@xxxxxxxxxx>  wrote in message
>>
>> news:6oWdnUpK56YLLTPXnZ2dnUVZ_uudnZ2d@xxxxxxxxxxxxxxx
>>
>>>> one for the security camera, the other for the rest of the lan..
>>
>>> I have separate switches for cameras and the rest of the LAN, but will the
>>> POE camera switch protect the rest of the LAN and everything attached?
>>
>>  From a direct hit?  Not a chance.  From a near miss?  Not likely.  From a
>> distant miss.  Maybe if there is a direct solid conductor to ground.
>
> National Electrical Code section 900 requires Surge protection
> equipment on outdoor wiring entering buildings.
> that goes for all low voltage cables. To prevent and deter lightning
> from entering a structure. look at any telco or cable install they do
> so should you. Do not do it and a strike hits a pole and comes in and
> destroys a network or worse yet causes a fire and plan on getting your
> butt sued. First thing looked at by an insurance investigator when
> there's a claim is to check and see that the installation meets all
> applicable codes. If it does not expect to get cited as the cause of
> the failure. I know because i do investigations for insurance
> companies.
>
> I have had several direct hits where lightning has hit structures and
> there was damage but the surge protectors along  proper bonding and
> grounding protection limited it and also helped prevent the structure
> from catching fire.
>
>
> That said a number of manufacturers make surge protection products for
> networks including Ditek, Stormin Protection etc. both plug in and
> punch down.

Interesting... anyone know if Canadian electrical codes are similar?