ICEA S-56-434:1983

Products

This Standard covers optical fiber communications cable intended
for outdoor use and normally installed aerially, directly buried,
or placed in underground ducts. Additional requirements are
included in Annex D for "figure-8" aerial self-supporting cables
and in Annex F for all-dielectric self-support cables, as
appropriate. Materials, constructions, and performance requirements
are included in the Standard, together with applicable test
procedures. Refer to other published ICEA (TIA) cable product
standards for information on optical fiber cable requirements for
other applications:

• S-83-596: Standard for indoor optical fiber cable
  (TIA-472C000-C)
• S-104-696: Indoor-outdoor optical fiber cable
  (ANSI/TIA-472E000)
• S-110-717: Optical fiber drop cable (ANSI/TIA-472F000)
• S-112-718: Optical fiber cable for placement in sewer
  environments (TIA- 472G000)

Applications Space

Products covered by this Standard are intended for operation
only under conditions normally found in communications systems.
These products normally convey communications signals (voice,
video, and data) from point-to-point or point-to-multipoint,
external to buildings. Products covered by this Standard may be
factory terminated with connectors or splicing modules.

When a composite cable is required, the applicable metallic
conductor requirements shall be as established by agreement between
the end user and the cable manufacturer. The requirements of
ANSI/ICEA S-84-608 should be considered when determining
appropriate requirements.

Temperature Ranges

The normal temperature ranges for cables covered by this
Standard are given in Table 1.1

For the purposes of this standard, very-low temperature
applications are defined as -50 °C (-58 °F) per 1.4.1.6 and are
addressed in Annex C (Normative), which contains requirements for
lower operating and storage temperatures than listed in Table
1.1.

Tensile Rating

The standard installation tensile rating for cables covered by
this Standard is 2670 N (600 lbf). Higher tensile ratings are also
acceptable. For applications where a lower tensile rating is
appropriate the standard lower tensile rating is 1330 N (300 lbf).
In all cases, the residual load is defined as a load equal to 30
percent of the installation tensile rating.

For self-supporting aerial applications there are additional
considerations that need to be addressed to ensure that the cable
design is appropriate for the selfsupporting distance and
environmental loading conditions. See 7.30 and Annex D for
information on figure-8 self-supporting aerial cable requirements
and considerations.

For aerial applications in which the optical cable is lashed to
a separate messenger wire, the use of a cable designed for a
standard tensile rating for installation by direct burial,
trenching, or pulling into duct may be adequate.

Minimum Bend Diameter

The standard minimum bend diameters for cables covered by this
Standard are:

Residual (Installed): 20 x Cable OD or 30 x Cable OD for ribbon
cables greater than or equal to 216 fibers

Loaded Condition (During Installation): 40 x Cable OD

For very small cables, such as those installed in miniature
ducts, manufacturers may specify a fixed cable minimum bend
diameter (e.g., 300 mm) that is independent of the cable outer
diameter (OD).

For cables not having a circular cross-section, bend diameter
requirements are to be determined using the thickness (minor axis)
as the cable diameter and bending in the direction of the
preferential bend.