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RS 485 Communication cable for Substatio nYard

RS 485 Communication cable for Substatio nYard

RS 485 Communication cable for Substatio nYard

(OP)
Can anyone please tell me what cable you use for any RS485 communication cable for outside use in a substation? I use to use Belden 9742 but it is not rated for moisture outside etc. Any help would be appreciated.

Thanks

RE: RS 485 Communication cable for Substatio nYard

Any Type TC instrumentation cable - twisted shielded pair should be listed for wet locations.  

Okonite Type P-OS is one options.  It comes in either 300 V or 600 V.  

 

David Castor
www.cvoes.com

RE: RS 485 Communication cable for Substatio nYard

I'd call a Beldon Rep. It's pure torture to wade thru their mounds of data to find what you need with regard to weather protection.

Keith Cress
kcress - http://www.flaminsystems.com

RE: RS 485 Communication cable for Substatio nYard

How about Belden 3105A?

RE: RS 485 Communication cable for Substatio nYard

(OP)
I'm not sure these have the the low capacitance you need for this does it?

RE: RS 485 Communication cable for Substatio nYard

What spec are you trying to meet?

David Castor
www.cvoes.com

RE: RS 485 Communication cable for Substatio nYard

(OP)
I just need a cable that is suitable for rs 485 communication, I am surprised that so many utilities are not using this communication and outside

RE: RS 485 Communication cable for Substatio nYard

RS-485 isn't really too demanding in terms of the cable characteristics.

I think utilities prefer to run fiber inside substations these days for the inherent safety and noise immunity benefits over a copper connection.  Having said that, we have used RS-485 fairly successfully in substations when fiber ports were not available.  



 

David Castor
www.cvoes.com

RE: RS 485 Communication cable for Substatio nYard

We run RS-485 all over our distribution subs for SCADA.  We use standard ethernet cable that we get in a great big roll box.  It's buried in conduit though, so we don't have a weather hardened cable.  

 

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