FIBER OPTIC CABLE FOR DIRECT BURIED INSTALLATION (ROUND STEEL DIRECT BURIED INSTALLATION IKBApplied in harsh environments with potential mechanical impact: in grounds, rivers crossings, in bogs to the depth of 2 meters, in ducts, over the bridges and overpasses, in tunnels, in sewer ducts, inside buildings. Special characteristics of optical fi ber cables:
- Flame-retardant â IKBN⦠(for installation in tunnels, sewer ducts, inside buildings);
- Improved moisture protection (with double plastic-coated aluminium sheath) â IKBZâ¦
- Double armour-coating of steel acirc; IKB2⦠Mâ¦This construction can be installed in the grounds of all categories (when low-temperature deformations are possible).
Cable type | IKB...-T... |
Design | Central-tube |
of optical fi bers in the cable | to 48 |
of tubes around central strength member | Â 1 |
Minimum outer cable diameter, mm | 8,7 |
Minimum weight, kg/km | 125 |
Minimum long-term tension, kN | no less 2,5 |
Minimum crush resistance, kN/cm | 0,4 |
Minimum allowed impact resistance, J. | 10 |
Minimum bending radius | 20Â |
Operating teperature range, °С | from -50 to +50 |
Minimum Installation temperature, °С | -30 |