I saw a white paper probably 30-40 years ago about water and fiber optic strands. Had to do with micro crack either already existing or the water causing them somehow. And the water also increased attenuation at the bends if the coating on the strand deteriorated.
Just now found a similar paper. http://www.idacs.uk.com/images/uploads/downloads/Datwyler_WP_Water_Impact_FO_2014.pdf From: Adam Moffett Sent: Saturday, April 08, 2017 5:43 AM To: [email protected] Subject: Re: [AFMUG] any reason to not use this cable underground in conduit? I was advised to use gel filled loose tube cable underground. The stated reason being that every underground conduit eventually ends up with water in it, and you don't want the water to find its way into your cable. That one could have gel in it, but I don't see it stated on the spec sheet. Honestly I don't know how the water hurts the glass.....I was just told not to let it in. ------ Original Message ------ From: "Paul McCall" <[email protected]> To: "[email protected]" <[email protected]> Sent: 4/8/2017 12:45:33 AM Subject: [AFMUG] any reason to not use this cable underground in conduit? http://www.fs.com/products/29610.html We have about 550 feet to distribute to 40 unit MDU situation. Thinking of using 2 of these in 24 count to save me some termination work. The main question is, if we pull this in conduit, would the cable hold up long term? Obviously, we seal the conduit, but if/when water got into the conduit, would the cable jacket hold up over time? ? Paul McCall, President PDMNet, Inc. / Florida Broadband, Inc. 658 Old Dixie Highway Vero Beach, FL 32962 772-564-6800 [email protected] www.pdmnet.com www.floridabroadband.com
