Usage and characteristics
OPPC is optical fiber phase conductor for short. It is the new special power optical cable by using the principle of optical fiber electromagnetic compatibility, compounding the optical fiber unit at phase line, which has functions of power transmission and fiber communication. When stressed area of OPPC is too small, the stainless steel pipe of optical fiber will become deformed under pressure, which will affect fiber communication, so when make operation OPPC, the crimping clamp fittings for transmission conductor could not be used, but the special designed fittings and accessories should be used, such as preformed armor rod strain fittings, suspension fittings, vibration damper and armor rods etc. For OPPC, optical-electric separation is the most important, so OPPC need equipped with connection box and terminal box.
Helical dead-end for OPPC
Usage and characteristics
Strain clamp for OPPC optical fiber composite phase could be divided into single strain clamp and double strain clamp, be selected and used according to engineering requirement.It consisted of internal armor rod, external armor rod (middle external armor rod should be increased for double strain clamp) and thimble etc. OPPC strain fittings need connect with pole tower through insulator.
Remark: Strain fittings provided by our company not include insulator chain.
Specification of helical dead-end for OPPC
| Type | Available DIA. of cable Min(mm) | Available DIA. of cable Max(mm) | length of preformed Wire Inner (mm) | length of preformed Wire Outer (mm) | Ref. Weight (kg) | Devastating strength (kN) |
|---|---|---|---|---|---|---|
| TF 1410 | 12.9 | 14.1 | 1680 | 1250 | 2.6 | 100 |
| TF 1550 | 14.2 | 15.5 | 1860 | 1380 | 2.9 | 100 |
| TF 1730 | 15.6 | 17.3 | 2050 | 1480 | 3.6 | 100 |
| TF 1920 | 17.4 | 19.2 | 2450 | 1820 | 4.7 | 120 |
| TF 2110 | 19.3 | 21.1 | 2650 | 2020 | 5.2 | 120 |
| TF 2300 | 21.2 | 23.0 | 2820 | 2580 | 6.7 | 120 |
Helical Suspension set for OPPC
Usage and characteristics
The hanging fittings is used in connecting OPPC with insulator on the tower, it has single suspension and double suspension. It consisted of internal armor rod, external armor rod, suspension clamp, U clip, assorted bolt and rubber clip. OPPC hanging fitting must connect with pole tower through insulator.
Remark: Suspension fittings provided by our company not include insulator chain.
The specification for OPPC Suspension Set
| Type | Available DIA. of cable (mm) | Length of Structural Reinforcing Rods (mm) | length of Outer Rods (mm) | Ref. Weight (kg) | Color code |
|---|---|---|---|---|---|
| TF 1360 | 12.9-13.6 | 1950 | 1310 | 2.2 | BK |
| TF 1410 | 13.7-14.1 | 2000 | 1310 | 2.2 | YE |
| TF 1430 | 14.2-14.3 | 2000 | 1310 | 2.2 | PU |
| TF 1450 | 14.4-14.5 | 2110 | 1430 | 2.6 | BU |
| TF 1510 | 14.6-15.1 | 2170 | 1430 | 2.6 | GR |
| TF 1580 | 15.2-15.8 | 2410 | 1430 | 2.7 | BR |
| TF 1600 | 15.9-16.0 | 2410 | 1610 | 3.1 | RE |
| TF 1690 | 16.1-16.9 | 2410 | 1610 | 3.1 | BK |
| TF 1730 | 17.0-17.3 | 2410 | 1610 | 3.2 | YE |
| TF 1800 | 17.4-18.0 | 2410 | 1610 | 3.3 | PU |
| TF 1840 | 18.1-18.4 | 2410 | 1610 | 3.3 | BU |
| TF 1880 | 18.5-18.8 | 2410 | 1610 | 4.7 | RE |
| TF 1890 | 18.9-18.9 | 2410 | 1610 | 4.7 | BR |
| TF 1990 | 19.0-19.9 | 2410 | 1610 | 5.1 | RE |
| TF 2090 | 20.0-20.9 | 2640 | 1830 | 5.6 | BK |
| TF 2190 | 21.0-21.9 | 2640 | 1830 | 5.6 | YE |
| TF 2300 | 22.0-23.0 | 2640 | 1830 | 5.9 | PU |
Closure and Terminal box for OPPC
Usage and characteristics
In OPPC engineering application, separate fiber unit from phase, it concerns fiber splicing and optical-electric separation technology. For OPPC, high voltage insulation should meet demands of splicing and protection of optical fiber. The connection box is the most important part.
OPPC connection box has big difference with OPGW, ADSS optical cable. It is live when it runs, it will affect line safety and normal run directly if there are problems. OPPC connection box should consider composite insulator.
OPPC connection box has middle box and terminal box and fixed corresponding insulator respectively. The middle box is in the middle of line and has function of fiber splicing and protection and power transmission. The terminal box achieve optical-electric final separation.
The OPPC connection box has its own intellectual property right of our company. It overcame the limitation stainless steel unit could not be reserved in OPPC connection box in domestic and abroad at present, the stain. steel pipe with enough length required by construction and maintenance could be reserved in the box, which s the problem of not so many conductors could be reserved at the splicing point of OPPC line and prepare allowance for the future maintenance. It is the real special connection box for OPPC line.
