P-89 cable entrance

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P-89 cable entrance #597907 02/11/16 06:07 PM
Joined: Jul 2003 Posts: 766 CA SST Member
SST Member Joined: Jul 2003 Posts: 766 CA	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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Re: P-89 cable entrance SST #597910 02/11/16 06:22 PM
Joined: Feb 2005 Posts: 12,354 Likes: 4 New York hbiss Member
hbiss Member Joined: Feb 2005 Posts: 12,354 Likes: 4 New York	Look in NEC Art 800. OSP cable no more than 50 feet. -Hal CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.

Re: P-89 cable entrance SST #597916 02/11/16 08:42 PM
Joined: Aug 2003 Posts: 5,155 Likes: 5 Gainesville, FL, USA nfcphoneman Moderator-Vertical, Vodavi
nfcphoneman Moderator-Vertical, Vodavi Joined: Aug 2003 Posts: 5,155 Likes: 5 Gainesville, FL, USA	800.48 Gainesville Telephone Systems Jacksonville Telephone Systems

Re: P-89 cable entrance SST #597920 02/11/16 10:36 PM
Joined: Jan 2005 Posts: 15,394 Likes: 17 Fayetteville, NC EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire
EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire Joined: Jan 2005 Posts: 15,394 Likes: 17 Fayetteville, NC	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. Ed Vaughn, MBSWWYPBX

Re: P-89 cable entrance EV607797 #597922 02/11/16 11:13 PM
Joined: May 2007 Posts: 5,059 Likes: 6 NYC Silversam Moderator-1A2, Cabling
Silversam Moderator-1A2, Cabling Joined: May 2007 Posts: 5,059 Likes: 6 NYC	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 "Where are we going and why are we in this hand basket?"

Re: P-89 cable entrance SST #597951 02/12/16 10:37 PM
Joined: Feb 2009 Posts: 664 Central Maine hawk82 Member
hawk82 Member Joined: Feb 2009 Posts: 664 Central Maine	Would this CO meet 5ft rule?

Re: P-89 cable entrance SST #597952 02/12/16 10:48 PM
Joined: May 2002 Posts: 17,742 Likes: 32 Western Nebraska justbill Member
justbill Member Joined: May 2002 Posts: 17,742 Likes: 32 Western Nebraska	Did a lot of splicing in vaults. Anybody know what the large bulges to the left of the splice cases are? Retired phone dude

Re: P-89 cable entrance SST #597955 02/12/16 11:35 PM
Joined: Jan 2005 Posts: 15,394 Likes: 17 Fayetteville, NC EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire
EV607797 Moderator-Vertical, Vodavi, 1A2, Outside Wire Joined: Jan 2005 Posts: 15,394 Likes: 17 Fayetteville, NC	Yes, but I don't want to spoil it for everyone else. Ed Vaughn, MBSWWYPBX

Re: P-89 cable entrance SST #597956 02/12/16 11:45 PM
Joined: May 2002 Posts: 17,742 Likes: 32 Western Nebraska justbill Member
justbill Member Joined: May 2002 Posts: 17,742 Likes: 32 Western Nebraska	I almost said anyone but Ed. Sam and Arthur probably know too. Retired phone dude

Re: P-89 cable entrance SST #597957 02/13/16 12:08 AM
Joined: Oct 2004 Posts: 376 Vancouver, BC Canada Bob3470 Member
Bob3470 Member Joined: Oct 2004 Posts: 376 Vancouver, BC Canada	I wasn't a splicer but are they dams?

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