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#597907 02/11/16 06:07 PM
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Does anyone know the nec code regarding p-89 cable? I recall it can't run more than 10 feet exposed inside a building. More than that it needs to be in a conduit. I can't seem to find the code regarding it though. False
memory? Thanks.

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SST #597910 02/11/16 06:22 PM
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Look in NEC Art 800. OSP cable no more than 50 feet.

-Hal


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SST #597916 02/11/16 08:42 PM
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800.48

SST #597920 02/11/16 10:36 PM
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Any PE cable is treated the same (PE-22, PE-39, PE-86, PE-89, you name it). Polyethylene Jacketed cable was never intended for indoor installations, as in for outside plant construction only. I'm surprised that the fifty foot rule even applies because that stuff burns like a match when exposed to flame. Yes, it must be contained within metallic conduit when run indoors for more than fifty feet.

The 50' limitation wasn't ever intended to permit these cables to be run within ceilings and walls in buildings. It was more of an allowance when bringing OSP cables into vaults or frames within buildings where they just needed that much room in huge installations, such as in central offices or large buildings where one sheet of plywood wasn't even close to cutting it for the terminations of tens of thousands of pairs.

If it was my decision to make, I'd limit it to five feet indoors, which is typical for unprotected electrical service entrance conductors.


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We used to bring Outdoor fiber into a building in PVC pipe. Nearby, we'd mount a LARGE (usually 4'x4'x4') steel junction box. I used to keep a slew of PVC to steel adapters (Connectors and couplings) and we'd bring the PVC pipe into the JB. We'd splice the OSP cable onto an indoor cable and then (usually) pipe it out to the customers location.

In Verizon's cable vaults, well.....it depended on who the CO Engineer was for that building.


Sam


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SST #597951 02/12/16 10:37 PM
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Would this CO meet 5ft rule? laugh

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SST #597952 02/12/16 10:48 PM
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Did a lot of splicing in vaults. Anybody know what the large bulges to the left of the splice cases are?


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SST #597955 02/12/16 11:35 PM
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Yes, but I don't want to spoil it for everyone else.


Ed Vaughn, MBSWWYPBX
SST #597956 02/12/16 11:45 PM
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aok I almost said anyone but Ed. Sam and Arthur probably know too.


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SST #597957 02/13/16 12:08 AM
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I wasn't a splicer but are they dams?

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