Re: CAT 5 in innerduct

Re: CAT 5 in innerduct


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Posted by Roman Kitaev on February 28, 19100 at 12:00:29:

In Reply to: CAT 5 in innerduct posted by Mick Leonard on February 24, 19100 at 22:33:46:

Mike,

my research shows that you need the National
Electrical Safety Code (NESC, ANSI/IEEE C-2), Section 23. It
provides specs regarding aerial construction to
and between buildings.

Generally, NESC covers requirements for the safeguarding
of the persons from the hazards arising from the
installation and operation of outside plant overhead and
underground.

A basic requirement is separation from power conductors. For
example, BICSI TDDM states that the required
separation from power conductors at building attachments
is 11 cm (4 in.) horizontally and 31 cm (12 in.)
vertically. Additionally, you have to have the
required clearance from vertical roof conductors
(antennas etc.) of 1.9 m (6 ft.) horizontally.

Also, be sure that you place *outside* Cat5 cable
into the duct. One example is Lucent's Cat5 OSP
4-pair UTP cable.

For ultimate answer, contact your local agency
responsible for issuing building permits.


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