- Optical cables
- Mounting cables "twisted pair"
- Control cables
- Universal cables
- Installation wires and cables
- Universal Power Cables
- Cables for fire and security alarm
- Telephone cables
Universal Optical Cable ГЕРДА-КОУ
manufactured acc. to ТУ 3587-20-76960731-2010

Certificate ГЕРДА-КОУ-Б-нг(А)-FRHF (PDF 1,27 МБ)
Declaration ГЕРДА-КОУ (PDF 1 МБ)
Declaration ГЕРДА-КОУ-Б (PDF 1 МБ)
Declaration ГЕРДА-КОУ-К (PDF 1 МБ)
Declaration ГЕРДА-КОУ-К (-60 to 70 С) (PDF 1 МБ)
Declaration ГЕРДА-КОУ-Кс (PDF 1 МБ)
Declaration ГЕРДА-КОУ-Кв (PDF 1 МБ)
Declaration ГЕРДА-КОУ-Ш (PDF 1 МБ)
Declaration ГЕРДА-КОУ-Т (PDF 1 МБ)
Declaration ГЕРДА-КОУ-ТБ (PDF 1 МБ)
Declaration ГЕРДА-КОУ-ТК (PDF 1 МБ)
Declaration ГЕРДА-КОУ-ТКв (PDF 1 МБ)
Declaration ГЕРДА-КОУ-Тр (PDF 1 МБ)
Declaration ГЕРДА-КОУ-ТТр (PDF 1 МБ)
Universal Optical Cables ГЕРДА-КОУ are designed for digital signals transmission at a lining in the main, local and intra-zone communication lines, as well as to connect electronic devices with the possibility of simultaneous use of digital and analog signals.
Application and design features of the cable are shown in Table 1.
For the cables are used different types of single-mode and multimode optical fibers, according to GOST R 52266-2020 (see. Table 2).
Tight buffer coating (tight buffer) of optical fiber provides a fiber strength, serves as a damping element (absorbs shock) and provides additional environmental protection for a fiber. The characteristics of the optical fibers in a tight buffer coating are presented in Table 3.
The cables are manufactured as of modular, tubular design and an optical cord.
The number of optical fibers in cables of modular design - from 2 to 144, in cables with a central tube and in optical cords - from 2 to 12.
The colouring while coating of optical fibers and optical modules allows unequivocal definition within the mounting process (see. Table 4).
ГЕРДА-КОУ cable may be manufactured in a combined design - when in one cable the electric energy (by the conductors) and optical signals (via optical fibers) are transmitted. Optical fibers may be combined with any cable of "Cable" Gerda system". The usage a combined design cable saves on cabling.
The fire safety index and working temperature of cables, depending on a insulation and jacketing material, are given in Table 5.
Table 1. Application and design features of the cable. |
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ГЕРДА-КОУ |
The cable is designed for hanging on supports of communication lines, for installation in special (protective plastic) pipes inside buildings and installations. The number of optical fibers in the cable – up to 144. On image:
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ГЕРДА-КОУ-К |
The cable is designed for laying in grounds of 1-3 groups, cable ducts, tunnels, sewers, block, inside buildings and installations. The number of optical fibers in the cable – up to 144. On image:
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ГЕРДА-КОУ-Б |
The cable is designed for laying in grounds of 1-3 groups, cable ducts, boxes, tunnels, sewers, inside buildings and installations. The number of optical fibers in the cable – up to 144. On image:
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ГЕРДА-КОУ-Кв |
The cable is designed for hanging on the air lines supports, in special pipes, tunnels, sewers, while electric field exposure. The number of optical fibers in the cable – up to 144. On image:
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ГЕРДА-КОУ-Тр |
The cable is designed for hanging on supports of communication lines, public lighting lines, between buildings, at contact network of railways and on power lines supports at the points with the maximum value of potential of up to 12 kV, on bridges and overpasses. The number of optical fibers in the cable – up to 144. On image:
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ГЕРДА-КОУ-Т |
The cable is designed for installation inside buildings, to use in local area computer networks as a distribution fiber optic cable. The number of optical fibers in the cable – up to 12. On image:
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ГЕРДА-КОУ-ТК |
The cable is designed for laying in grounds of 1-3 groups, cable ducts, tunnels, sewers, blocks, inside buildings and installations. The number of optical fibers in the cable - 12. On image:
|
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ГЕРДА-КОУ-ТБ |
The cable is designed for laying in grounds of 1-3 groups, cable ducts, blocks, tunnels, sewers, inside buildings and installations. The number of optical fibers in the cable - 12. On image:
|
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ГЕРДА-КОУ-ТКв |
The cable is designed for installation outdoors and inside buildings, at tunnels, sewers and as of electric field exposure. Static stretching efforts resistance - at least 3kN. On image:
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ГЕРДА-КОУ-ТТр |
The cable is designed for hanging on supports of communication lines, at contact network of railways, public lighting poles, between buildings and installations, on power line supports in the points with the maximum value of potential of up to 12 kV, on bridges and overpasses. The number of optical fibers in the cable - 12 On image:
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Combined cable |
The cable is designed for the simultaneous transmission of electrical energy and optical signals. Insulated strend can be maintained to all grades of modular cable design, except cables of ГЕРДА-КОУ-Кв (Кс, Кв2, Кс2). On image:
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ГЕРДА-КОУ-Ш |
The cable is designed for the manufacture of lightweight cords, for installation inside buildings and equipment, in cable ducts wells, sewers, tunnels, on suspension. On image:
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Table 2. Characteristics of the optical fibers. |
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---|---|---|---|---|---|---|---|
Characteristic |
Optical fiber type. |
||||||
МГ1 |
МГ2 |
Е1 |
Е2 |
Е3 |
Е4 |
Е5 |
|
1. Mode field diameter, microns: λ = 1310 nm. λ = 1550 nm. |
- - |
- - |
8,6-9,5 - |
- |
- |
- |
- |
2. Cutoff wavelength, λcc, |
- |
- |
≤ 1260 |
≤ 1530 |
≤ 1260 |
≤ 1260 |
≤ 1480 |
3. The attenuation coefficient at the reference wavelength, dB / km: λ = 850 nm. λ = 1300 nm. λ = 1310 nm. λ = 1550 nm. λ = 1625 nm. λ = 1383 nm. λ = 1460 nm. |
≤ 0,7 - - - - - |
≤ 0,8 - - - - - |
- - ≤ 0,36 ≤ 0,22 - ≤ 0,35 - |
- - - ≤ 0,20 - - - |
- - - ≤ 0,22 ≤ 0,25 - ≤ 0,40 |
- - - ≤ 0,22 - - - |
- - - ≤ 0,22 ≤ 0,25 - - |
4. The numerical aperture |
0,200 ± 0,015 |
0,275 ± 0,015 |
- |
- |
- |
- |
- |
5. Spread spectrum factor λ = 1300 nm. |
≥ 500 |
≥ 500 |
- |
- |
- |
- |
- |
6. Chromatic dispersion coefficient, λ = (1285-1330) nm. λ = (1525-1575) nm. λ = (1530-1565) nm. |
- - - |
- - - |
≤ 3,5 ≤ 18 - |
- ≤ 20 - |
- - 1,0-14,0 |
- ≤ 3,5 - |
- - |
7. Dispersion slope in λ = (1285-1330) nm. λ = (1525-1575) nm. |
- - |
- - |
≤ 0,093 - |
- ≤ 0,06 |
- - |
- ≤ 0,085 |
- - |
Table 3. Characteristics of the optical fibers in a tight buffer coating |
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---|---|---|---|
The parameters of the optical fiber |
Optical fiber type |
||
МГ1 |
МГ2 |
Е1 |
|
1. Mode field diameter, microns.: λ = 1310 nm. λ = 1550 nm. |
- - |
- - |
9,2 ± 0,4 10,4 |
2. Cutoff wavelength, λcc, nm. |
- |
- |
≤ 1260 |
3. The damping coefficient on the reference wavelength, dB / km: λ = 850 nm. λ = 1300 nm. λ = 1310 nm. λ = 1550 nm. |
≤ 3,5 ≤ 1,25 - - |
≤ 3,5 ≤ 1,25 - - |
- - ≤ 0,8 ≤ 0,5 |
4. The numerical aperture |
0,200 ±0,015 |
0,275 ±0,015 |
- |
5. spread spectrum factor MHz⋅km λ = 850 nm. λ = 1300 nm. |
≥ 400 ≥ 400 |
≥ 160 ≥ 500 |
- - |
6. Chromatic dispersion coefficient, ps/nm⋅km: λ = λ = |
- - |
- - |
≤ 3,5 ≤ 18 |
7. Tilt dispersion characteristics |
- |
- |
≤ 0,092 |
Table 4. The colors of optical fibers and optical modules | |
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The sequence number of the optical fiber or optical module |
Color |
1 |
Unpainted |
2 |
Red |
3 |
Yellow |
4 |
Blue |
5 |
Brown |
6 |
Gray |
7 |
Orange |
8 |
Green |
9 |
Black |
10 |
Purple |
11 |
Pink |
12 |
Turquoise |
Table 5. Fire safety index and working temperature depending on the jacketing material | |||
---|---|---|---|
Sign of insulation material |
Fire Safety Index |
Material of insulation (core insulation for all the cables – cross-linked polyolefin) |
Working Temperature, °С |
П |
- |
polyethylene |
-40°...+60°С * |
В |
нг(A) |
PVC compounds of low flammability |
-50°...+70°С * |
нг(A)-LS |
PVC compounds of low flammability with low smoke and gas emission |
-50°...+70°С * |
|
нг(A)-FRLS |
PVC compounds with low smoke and gas emission, flame retardant cable |
-50°...+70°С * |
|
нг(A)-HF |
halogen-free polymeric compositions |
-50°...+70°С * |
|
нг(A)-FRHF |
halogen-free polymeric compositions, flame-retardant cable |
-50°...+70°С * |
|
Т |
нг(A) |
low flammability thermoplastic elastomers |
-60°...+125°С |
нг(A)-FR |
low flammability thermoplastic elastomers, flame-retardant cable |
-60°...+125°С |
* The cables may be made in cold-resistant performance of "ХЛ" with operating temperatures from -60 °C