IEEE 1594-2008 pdf free.IEEE Standard for Helically Applied Fiber Optic Cable Systems (Wrap Cable) for Use on Overhead Utility Lines.
IEEE 1594 covers an all-dielectric fiber optic (wrap) cable designed to be helically wrapped around a conductor or other messenger on overhead power facilities. This covers the mechanical, electrical, and optical performance. installation guidelines, acceptance criteria, test requirements. environmental considerations, packaging and shipping guidelines, and accessories.
1.2 Purpose
Other existing standards do not cover all-dielectric fiber optic (wrap) cable designed to be helically wrapped around a conductor or other messenger on overhead power facilities. This standard simplifies procurement, standardiies testing, assures product quality, and assists usage.
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e, they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
3. Description of wrap cable and component
The wrap cable shall consist of coated glass optical fibers contained in a protective dielectric fiber optic unit, surrounded by a UV resistant jacket. The cable shall not contain metallic components. The cable shall meet the design requirements under all installation conditions, operating temperatures, and ground wire environmental loadings.
4.1 Support systems
Support systems for thc cablc itself arc not required. Thc ground wirc, phase wire, or other messenger in overhead power facilities around which the cable is wrapped provides all the support for the composite system and eliminates the need for the cable to be self-supporting.
4.2 Fiber optic cable core
The fiber optic cable core shall be made of coated glass optical tibers housed to proteci them from mechanical, environmental, and electrical stresses, Materials used within the core shall be compatible with one another, shall not degrade under the electrical stresses to which they may be exposed. and shall not evolve hydrogen sufficient to degrade optical performance of fibers within the cable.
4.2.1 Fiber strain allowance
The fiber optic cable core shall be designed so that the fibers remain tensile stress-free under the maximum working elongation of the cable being wrapped on. and taking into consideration strains created during the installation,
4.2.2 Central structural element
If a central structural element is necessary. it shall be of reinti.rced plastic. epoxiglass, or other dielectric material, If required. this element shall provide the necessary tensile strength to limit axial strain on the fibers and minirni/e fiber buckling due to cable contraction at low temperatures.
4.2.3 Buffer tube filling compound
Loose buffer tubes shall be tilled with a suitable compound compatible with the tubing material, fiber coating, and coloring to protect the optical lihers and prevent moisture ingress.
4.2.4 Cable core filling/flooding compound
The design of the cable shall include a suitable filling/flooding compound or watcr-swcllable material in the interstices to prohibit water migration along the fiber optic cable core. The tilling/flooding compound or water-swellable compound shall be compatible with all components with which it may come in contact.IEEE 1594 pdf download.