Running analog signal sensors cables in the same conduit than PV DC power cables

josealjim

Hi everyone,
WHat do you think about running the analog signal cables (pyranometer and TC at the solar field ) into the same conduit than DC power cables?
The trench for the DC power cables is already covered so if we dont open it again to install another conduit we would have to run the analog signal cables into the same conduit. Another option is to transfer the data with wireless adapter supplied by 230 v from another part of the building (it would be more expensive)

Could I run the cable into the same conduit?

Thanks

zoneblue

Re: Running analog signal sensors cables in the same conduit than PV DC power cables

Analog you say? Depends on how fragile a signal, how long the trench, and whats going through the DC cables. If its PV cables, i would say that there shouldnt be much noise on those, at least if its a mppt controller. A PWM controller would be another story. You might have to try it and see. Can you get some sheilded cable perhaps? Audio or similar...

Mustang65

Re: Running analog signal sensors cables in the same conduit than PV DC power cables

Use CAT5/6 cable and you should be OK. We ran CAT5 along with the Central Office 48VDC cables in the same wire racks. Never had any issues. AC is a different story.

Don

mike95490

Re: Running analog signal sensors cables in the same conduit than PV DC power cables

josealjim wrote: »

Hi everyone,
WHat do you think about running the analog signal cables (pyranometer and TC at the solar field ) into the same conduit than DC power cables?...

Sounds like very low level signals, try with double shield twisted pair, and you will find if you have to re dig the trench.

zoneblue

Re: Running analog signal sensors cables in the same conduit than PV DC power cables

mike95490 wrote: »

Sounds like very low level signals, try with double shield twisted pair, and you will find if you have to re dig the trench.

Yes cat6 should work well. Cat 7 if you can get it.