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geomech
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LDF 450 Signal Corruption

08/23/2006 7:10 AM

I have 30M of LDF 450 signal cable with 7 M of it grouted in a Cable bolt Hole. This cable was supposed to monitor ground movement but it was not protected properly and was destroyed during a blast by fly rock. A small section survives sticking out the hole. The cable cannot be read casually as it is just above a 100m hole. Cutting out the damaged section and rejoining it with the standard connectors (L4PNM RC - RingFlare Connectors) is not an option as the signal degrades once the cable is broken and reconnected. Is there another way to reconnect without data corruption over such a distance?

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HerbVic
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#1

Cable repair

08/23/2006 8:29 AM

I guess this is as much a question as a suggestion. Can you use silver soilder and heat shrink insulation?

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geomech
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#2
In reply to #1

Re:Cable repair

08/23/2006 11:09 PM

Thanks for the reply. I had the same thought but the sparkies say no, as the shielding is broken and too much outside electrical interference will also corrupt the data.It will leak to much.

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ca1ic0cat
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#3

Going to have to use a powered repeater

08/24/2006 8:18 AM

Hate to say it, but the only way I think you're going to get around this is to put a powered data tranceiver at the remains of the cable end and hook your long run up to that. This is going to be even more sensitive to blast damage than the previous set up, so I guess you'll have to use a NEMA enclosure that is shock isolated from the ground and weather tight. And tell the guys that make things go "kaboom" to be more careful next time... Eric

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