1, The HONGCHUANG, with the optical fibers incorporated in a stainless steel tube, has mechanical and electrical properties close to the ground wire that is to be replaced. Not only for ground wires with small or medium-sized cross-sections, such as GJ-50 and GJ-70 for110 and 220 KV lines, appropriate OPGW products are avalable, also for ground wires with large cross-sections as e.g. LGJ-400/32 for 500 kV systems, HONGCHUANG has extensive experience with OPGW design and installation supervision.

2. The stainless steel fube that houses the fiber has a high tensile strength and a high crush resistance in order to provide an effective protection. The fiber is mechanically decoupled from other component parts of the cable structure in all expected condftions of use. This ensures successful operation during the life time of the cable.

3. HONGCHUANG strives for compact and lightweight OPGW designs in order to reduce influences of wind and ice, and to minimize toll on the towers of the power line grid.

4., By protecting the opticing fiber using a gel filled stainless steel tube which has a high radial thermal resistance, OPGW temperatures up to 400 ℃ can be allowed in a single phase short-circult situation.

5, HONGCHUANG realizes high strength I small diamoter OPGW designs by selecing the right type and size for the aluminium cladded steel wires in the center of the structure.

6. HONGCHUANG strives for designs with properties that maximaly approach those of conventional earth wires in order to meet shorl-circuit requirements and to ensure secure operation op the power line circuit.

7. HONGCHUANG OPGW designs are in accordance with IEEE1138, IEC1396, DL/T832-2003 and related standards.

8. To ensure reliable telecommunication and secure electrical power transport, many factors should be taken into account for the design of an OPGW. Most important in this are tensile strength and short circuit capability. HONGCHUANG offers excellent OPGW constructions that can be tailored to your specific requirements.