OKZB-M fiber optic cables

Brand design

1. The central power element is metallic or dielectric.

2. Optical fiber.
3. Optical module - polybutylene terephthalate.
4. Optical modules are located around the CSE.
5. Type B outer cover:
- water blocking material;
- corrugated steel tape with polyethylene coating;
- sheath - polyethylene or composite polymer material, for "ng (C) - LS" version - material with low smoke and gas emission.

Specifications

Resistance to static tensile forces, kN - not less than 1.5 to 2.7

Resistance of cables to dynamic tensile forces - not less than 15% more than to static ones
Crush resistance, kN / cm - not less than 0.2 to 0.4
Water resistance at excessive hydrostatic pressure, kPa - up to 9.8
Resistance to damage by rodents - yes
Impact resistance with energy, J - not less than 5
The number of optical fibers in the core is from 1 to 256 pcs.
Resistance to low operating temperature of the medium:
- underground cables with tubular core - - 40 ° С;
- underground cables with a modular core - - 60 ° С;
- for cables operated outdoors - - 60 ° С.
Resistance to high working temperature of the environment, ° С
- underground cables with tubular core - 50 ° С;
- underground cables with a modular core - 70 ° С;
- for cables operated outdoors - 70 ° С.
Resistance to cyclic temperature changes in the range:
- underground cables with tubular core - from minus 40 to 50 ° С;
- underground cables with a modular core - from minus 60 to 70 ° С,
- for cables operated outdoors - from minus 60 to 70 ° С.
Resistance to high relative air humidity up to 98% at 35 ° С
Cables are designed for laying (installation) at temperatures from minus 10 to plus 40 ° С, cables with a modular twist core from minus 30 to plus 40 ° С.
The minimum bending radius is 20 times the nominal cable diameter.
Resistance to mold fungi, dew, atmospheric precipitation, frost, salt fog, solar radiation - yes
Resistance to vibration loads with an acceleration of 4 g in the frequency range from 10 Hz to 200 Hz - yes
Construction length - at least 2 km
Electrical resistance of current - carrying conductors to direct current, recalculated for a length of 1 km and a temperature of 20 ° C - set by agreement with the customer in accordance with GOST 22483.
Insulation resistance of the "armor - ground" circuit - not less than 2000 MOhm x km
Insulation resistance between current - carrying conductors and metal structural elements OK - at least 10 megohm x km.
Flame retardant cables meet the requirements of GOST R IEC 60332 - 1 - 2 - 2007
Cables with low smoke and gas emission (version "LS") comply with the requirements of GOST R IEC 61034 - 2 - 2005
Smoke formation of cables with reduced smoke and gas emission (version "LS") does not lead to a decrease in light transmission in the test chamber - no more than 50%
The amount of halogen acid gases emitted during the combustion and smoldering of the materials of the sheaths and the protective hose of cables with low smoke and gas emission (version "LS") in terms of HCl is not more than 140 mg / g.
The value of the toxicity index of combustion products of polymeric materials for the sheaths and protective hose of cables with low smoke and gas emission (version "LS") - no more than 40 g / m3.
Cables with low corrosiveness of smoke and gas products (version "HF"), meet the requirements of GOST R IEC 60754 - 1 - 99 and GOST R IEC 60754 - 2 - 99
Smoke formation of cables with low corrosive activity of smoke and gas products (version "HF"), does not lead to a decrease in light transmission in the test chamber - no more than 40%
The amount of halogen acid gases emitted during the combustion and smoldering of the materials of the sheaths and the protective hose of cables with low corrosiveness of smoke and gas products (version “HF”) in terms of HCl is not more than 5 mg / g.
The value of the toxicity index of the combustion products of polymeric materials for the sheaths and the protective hose of cables with low corrosiveness of smoke and gas products (version "HF") - no more than 40 g / m3.
The conductivity of an aqueous solution with adsorbed products of smoke and gas emission of cables with a reduced corrosive activity of products of smoke and gas emission (version “HF”) is not less than 10 μS / mm.
Acid number (pH) - not less than 4.3
Fire hazard class in accordance with GOST 31565 - 2012 for cables of the "ng (C) - LS" version - P3.8.2.2.2.
The service life of the cables is at least 25 years.
Shelf life of cables
- when stored in heated rooms - at least 15 years;
- when stored in the field under a canopy - at least 10 years.
Warranty period of operation - 2 years, no more than 2.5 years after shipment by the manufacturer
The temperature during transportation of an optical cable is from minus 50 to 50 ° С.
The temperature during storage of an optical cable outdoors under a canopy is from minus 50 to 50 ° С.
Storage temperature in heated warehouses is from 5 to 40 ° C.