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Cable marine universal GERDA-KSd in acc. with ТУ 3586-009-76960731-2007
– for control , for monitoring, mounting, power, for communication, inclusive flame retardant «нг», «нг-LS», «нг-HF»
and incombustible «нг-FR» и «нг-FRHF», oil-and petrol-resistant, salts-resistant, UV-resistant
Cables GERDA-KSd cables are designed for use in power and lighting networks, control circuits, signaling and inter-instrument connections, the data lines forming, connecting sensors with digital frequency modulated signal, signal of 4-20 mA, the HART, with an RS485, RS482, RS422 and other interfaces, that require the use of "twisted pair" as a channel transmit / receive data channel.
Cables are used for stationary and temporary laying indoors and outdoors, if protected from direct solar radiation exposure, channels, tunnels, ground (trenches), in places exposed to stray currents, on the river fleet and navy ships of unlimited navigation area, on floating and onshore plants, offshore platforms, in the fish-processing workshops, refrigerated rooms, as well as for fixed installation in sea water. Cables can be used in hazardous zones of 0, 1, 2 classes (in accordance with ГОСТ Р 51330.13-99), as well as in nuclear power plant safety systems.
- Wide range of applications - including terrestrial applications that require cable resistance to salt and/or oil
- Tinned copper stranded wires of 4th or 5th grade, by total or double twisting, digital or color-coded
- The cross section of 0,35mm² up to 240mm², number of wires from 1 to 61, number of pairs from 1 to 30
- Each wire(pair) may be with single or general shield
- Shielded power cable
- Wide operating temperature range of -60° up to +200°С
- All cable are made as of «нг» performance - non-combustible
- Cable performance «FR» - flame retardant
- New materials are applied – «нг-LS», «нг-HF»
- Moisture penetration prevention technology
- Cable performance "УФ" – UV resistant cable
- Hybrid cable-copper conductors and optic fibre within the same cable
Design features, materials and performance types
The cable jacket with the material designation "Пс" is made of low flammable PVC composition, and with "LS" material designation – made of and low smoking PVC composition, and the insulation is made of cross-linked polyolefin, so the cables are recommended for use as a "twisted pair" with improved frequency characteristics.
The cable insulation and the sheath with the material designation "П" is made of polymer compositions and does not contain halogens («HF»). The cables marked "Т" have got the sheath and insulation made of thermoplastic elastomers, therefore have greater flexibility and extended operating temperature range. All cables can be manufactured in a flame retardant version - «FR». The cables with the material designation "Пс" and "П" are available with copper stranded conductor of 4th grade, and with the designation of "Т" – of 5th grade.
The cables are made by general or double twisting ("twisted pair" with a pitch of 60 mm); conductors (pairs) may have a separate shield and / or a shared shield in a braid of copper wires or AlumoFlex coil or be unshielded. The cable core is covered with water blocking tape to prevent longitudinal propagation of moisture.
| Table 1. |
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Material code
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Fire safety index
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Insulation and sheath material
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Coding example
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Пс
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нг-LS
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insulation - cross-linked polyolefin; PVC outer sheath, low flammability composition (low smoke and gas emission) |
ГЕРДА-КСд нг-LS 3х2,5 Э Пс
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нг-FRLS
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insulation - cross-linked polyolefin; flame retardant cable; outer sheath made of PVC composition of low flammability |
ГЕРДА-КСд нг-FRLS 5х10л Пс
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П
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нг-HF
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insulation and outer sheath made of polymeric compositions that do not contain halogens |
ГЕРДА-КСд нг-HF 2х2х0,5 Эл П
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нг-FRHF
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flame retardant cable; insulation and outer sheath made of polymeric compositions that do not contain halogens |
ГЕРДА-КСд нг-FRHF 5х2 П Э
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Т
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нг
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insulation and outer sheath made of a thermoplastic elastomer |
ГЕРДА-КСд нг 1х50 Т К-УФ
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нг-FR
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flame retardant cable; insulation and outer sheath made of a thermoplastic elastomer |
ГЕРДА-КСд нг-FR 10х2х1,0 Т-Т
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Flame retardant cable (index «нг-FR», «нг-FRHF», «нг-FRLS»)
In fire-resistant cable (with index «нг-FR», «нг-FRHF», «нг-FRLS») a conductor under insulation is winded with two mica tapes. The cable keeps working in conditions of open flames and temperature to +780 °C within at least 90 minutes. In case of fire, it helps to avoid accidental power failure (for example, in fire alarm systems, emergency lighting, smoke, in fire pumps, elevators, etc.)
Production of cables on request
It’s possible to manufacture cable on request:
- With coloured outer sheath (yellow, red or other colour);
- With combined cross-section of conducting wires (pairs) – for example, cable with four wires may have one wire of smaller cross-section (grounding or zero);
- Hybrid cables – within the same cable there is power transmission (by conducting wires) and optic signal transmission (by optic fibre);
- Made of thermos-resistant materials (up to +200°С).
| Table 2. Cable technical data |
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Operating temperature
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- from -30° up to +85°C
- from -60° up to +125°C for the «Т» material labelled cables
- from -40° up to +200°C for the «Т-Т» material labelled cables
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Minimal mounting temperature
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- above minus 30°С
- above minus 15°С for «нг-LS» material labelled cables
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Rated voltage
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- up to 690V of AC voltage at up to 400 Hz or up to 1000V DC for cables with cross-section of 0,35..2,5 mm²
- up to 1000V AC voltage at up to 700Hz or DC voltage up to 1200V for cables with cross-section more than 2.5mm²
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| Insulation electrical resistance during operation, t = +20°C |
- above 50 МОm·km
- above 150 МОm·km for the cables with «LS» index |
| Bending radius (measured by cable outer diameter D) |
- above 6D
- above 3D for the cables with index «Т» |
| Resistance to alternating bending |
Up to 20 000 alternating bends, for the sheath and insulation material with "Т" index and cross-section of 0,35..2,5 mm² |
| Radial hydrostatic pressure impact resistance |
- up to 2,94 MPa (30 kgs/sm²)
- stand for hydrostatic pressure of 6,0 MPa within 3 hours |
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Climatic performance
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Performance В, placement category 2-5 (по ГОСТ 15150-69). It’s possible to use the cables at all micro-climatic areas, including tropical ones.
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Resistance to specific environments
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gasoline, diesel oil, sea water, salt (sea) fog, vapors and condensate of oil and fuel, vapors of acids and alkalis; apatite, coal, cement and other dust; fish and other seafood flour
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Resistance to longitudinal moisture spread in case of the outer shell damage
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the moisture is completely blocked
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Fire resistance (for «FR» cable)
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above 90 minutes while exposed to open flame and temperature up to +780°С
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Resistance to short-term heating of the conductor
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Up to +250°С within 1 sec, number of heating cycles not more than 10 within service life
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Service life
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- above 30 years
- above 25 years for cables with material index «Т»
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| Table 3. Nominal wire cross-section, number of wires and pairs |
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Cable grade
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Nominal wire cross-section, mm²
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Number of wires and pairs (pairs are designated with - «х2»)
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ГЕРДА-КСд нг-LS *** Пc
ГЕРДА-КСд нг-LS *** Э Пс
ГЕРДА-КСд нг-LS *** Пс Э
ГЕРДА-КСд нг-HF *** П
ГЕРДА-КСд нг-HF *** Э П
ГЕРДА-КСд нг-HF *** П Э
ГЕРДА-КСд нг *** Т
ГЕРДА-КСд нг *** Э Т
ГЕРДА-КСд нг *** Т Э
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0,35;0,5;0,75;1,0;1,2;1,5;2,5
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2;3;4;5;6;7;8;10;12;14;16;18;19;20;24;27;30;37;44;48;52;61
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0,35;0,5;0,75;1,0;1,2;1,5;2,5
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1х2;2х2;3х2;4х2;5х2;6х2;7х2;8х2;10х2;12х2;14х2;16х2;18х2;
19х2;20х2;24х2;27х2;30х2
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4;6;10;16;25;35;50
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1;2;3;4;5
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70;95;120;150;185;240
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3;4;5
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ГЕРДА-КСд нг-FRLS *** Пc
ГЕРДА-КСд нг-FRLS *** Э Пс
ГЕРДА-КСд нг-FRLS *** Пc Э
ГЕРДА-КСд нг-FRHF *** П
ГЕРДА-КСд нг-FRHF *** Э П
ГЕРДА-КСд нг-FRHF *** П Э
ГЕРДА-КСд нг-FR *** Т
ГЕРДА-КСд нг-FR *** Э Т
ГЕРДА-КСд нг-FR *** Т Э
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0,35;0,5;0,75;1,0;1,2;1,5;2,5
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2;3;4;5;6;7;8;10;12;14;16;18;19;20;24;27;30;37;44;48;52;61
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0,35;0,5;0,75;1,0;1,2
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1х2;2х2;3х2;4х2;5х2;6х2;7х2;8х2;10х2;12х2;14х2;16х2;18х2;
19х2;20х2;24х2;27х2;30х2
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1,5;2,5
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1х2;2х2;4х2;6х2;8х2;10х2;12х2;14х2
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4;6;10;16;25;35;50
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1;2;3;4;5
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70;95;120;150;185;240
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3;4;5
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*** - Number and designation of a twisted pair [if necessary], and cross section (see the notation structure when ordering).
| Table 4. Current capacity of power cables when installing |
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Nominal wire cross-section, mm²
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Current capacity of power cables, А
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Single wire
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Double wire
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Triple, quadruple and quintuple
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4
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53
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44
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37
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6
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67
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56
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49
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10
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91
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76
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66
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16
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121
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101
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87
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25
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160
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134
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115
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35
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197
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166
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141
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50
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228
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195
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164
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70
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286
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248
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205
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95
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388
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283
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262
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12
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443
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496
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318
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150
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522
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451
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372
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185
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604
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527
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429
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240
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-
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-
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499
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Cable electrical parameters (Reference data)
| Table 5. Maximum operating capacitances and inductances of cable pair with the material designation "П" and "ПС" at a temperature of 20°C, referred to 1 km of cable length |
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Frequency, kHz
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Maximum operating capacitance, nF
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Maximum inductances, mkHn
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Cross-section, mm²
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0,50
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0,75
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1,00
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1,50
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2,50
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0,50
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0,75
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1,00
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1,50
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2,50
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0,05
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99
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113
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122
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124
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128
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0,73
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0,68
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0,66
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0,62
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0,51
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8,00
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97
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109
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117
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118
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122
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0,71
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0,67
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0,64
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0,61
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0,50
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16,00
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95
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106
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113
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114
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119
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0,71
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0,67
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0,64
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0,59
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0,48
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64,00
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88
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97
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104
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105
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108
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0,70
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0,64
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0,60
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0,54
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0,43
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256,00
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86
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93
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99
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100
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102
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0,65
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0,59
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0,55
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0,49
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0,37
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| Table 6. The maximum ratio of inductance to resistance and maximum resistance of cable pair with the material designation "П" and "ПС" at a temperature of 20 ° C, referred to 1 km of cable length |
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Frequency, kHz
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Maximum ratio of inductance to resistance, mkHn /Om
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Maximum resistance, Om
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Cross-section, mm²
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0,50
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0,75
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1,00
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1,50
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2,50
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0,50
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0,75
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1,00
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1,50
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2,50
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0,05
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9,3
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13,2
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17,3
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24,6
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55,0
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74
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49
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36
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24
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9
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8,00
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8,9
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12,5
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16,2
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22,4
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40,0
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76
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51
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38
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26
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12
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16,00
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7,9
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10,8
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13,3
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16,6
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27,4
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85
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58
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45
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34
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17
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64,00
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6,2
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7,4
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7,7
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8,2
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10,6
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105
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81
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72
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61
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39
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256,00
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3,2
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3,2
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3,2
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3,3
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3,4
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189
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167
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154
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136
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106
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Note:
The data presented in Table 5 and Table 6 are necessary for use of the cable in intrinsically safe circuits.
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+7 495 755 88 45
Cable marine universal ГЕРДА-КСд (2013-04-03)