cat 5 & electrical

[James Knott]

Colin McGregor wrote:
> --- Chris Aitken <chris-n/jUll39koHNgV/OU4+dkA at public.gmane.org> wrote:
>   
>> James Knott wrote:
>>
>>     
>>> Chris Aitken wrote:
>>>  
>>>
>>>       
>>>> Can you lay cat 5 alongside electrical wire in the
>>>>         
>> wall frame
>>     
>>>> (pre-drywall) or is there disturbance/heat or any
>>>>         
>> other problem?
>>     
>>>>    
>>>>
>>>>         
>>> While it's always a good idea to keep data and
>>>       
>> power separate, there is
>>     
>>> no interference issue between them.  The 60 Hz AC
>>>       
>> frequency is far
>>     
>>> removed from the frequencies used in ethernet. 
>>>       
>> Also, ethernet was
>>     
>>> designed to share multipair cables with phone
>>>       
>> systems, where the
>>     
>>> frequencies are also much higher than 60 Hz.
>>>  
>>>
>>>       
>> Thanks. We're getting an electrician to inspect it
>> and he wants to see 
>> separate holes minimum six inches apart - so we're
>> going with that.
>>     
>
> Have a look at:
>
> http://www.siemon.com/us/white_papers/99-07-15-nextgencabling.asp
>
> Bottom line in these folks view is that while not
> legally required 24 inches is recommended...
>
>
>   
I wonder what they base that on?  As the safety specs say, the cables
can be close, provided there's a conduit or raceway of some type
protecting them.  And as I mentioned, the frequencies in question are
too far apart for interference to be an issue.  Sure more distance is
nice, but not always attainable.


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