Article specifications
| Part no. | 705732 |
|---|---|
| Item description | HELUWIND® WK 137-TORSION FT4 black 4 G 25 mm² |
| AWG, approx. | 4 |
| Outer diameter, approx. (mm) | 26,2 |
| Copper factor per km | 960,0 |
| Weight, approx. (kg/km) | 1540,0 |
| Metres per packaging unit | 500, 1000 |
| Custom cut lengths available | yes |
| EAN / GTIN | 4060892329159 |
| Customs tariff number | 85444995 |
Manufacturer technical information
Torsion resistant cable acc. to UL-Std. 758 (AWM) Style 20234, CSA-Std. C22.2 No. 210 - AWM I/II A/B
Temperature range
flexible -40°C to +90°C
fixed -40°C to +90°C
UL (AWM) to +80°C
fixed -40°C to +90°C
UL (AWM) to +80°C
Permissible operating temperature of the conductor
+90°C
Nominal voltage
VDE AC U0/U 600/1000 V
UL (AWM) AC 1000 V
UL (AWM) AC 1000 V
Max. permissible operating voltage
alternating current (AC) conductor/earth 700 V
three-phase alternating current (AC) conductor/conductor 1200 V
direct current (DC) conductor/earth 900 V
direct current (DC) conductor/conductor 1800 V
three-phase alternating current (AC) conductor/conductor 1200 V
direct current (DC) conductor/earth 900 V
direct current (DC) conductor/conductor 1800 V
Test voltage core/core
4000 V
Test voltage core/screen
2000 V
Minimum bending radius
flexible 10x Outer-Ø
fixed 5x Outer-Ø
fixed 5x Outer-Ø
Cable Structure
- Copper wire bare acc. to DIN VDE 0295 / IEC 60228
- Core insulation: special compound
- Core identification acc. to DIN VDE 0293-334, black cores with consecutive labeling in white digits
- x = without protective conductor,
- G = with protective conductor GN-YE
- Cores stranded in layers with optimal lay lengths
- Outer sheath: special compound
- Sheath colour: black
Properties
- resistant to: oil, UV radiation
- extremely abrasion-resistant, low adhesion
- Torsion tested
- halogen-free
- highly flame-retardant
- Suitable for use in multiple climates
- Designed for CCV applications
- Suitable for offshore applications
- Torsion angle: +/- 150°/m
Tests
- halogen-free acc. to DIN VDE 0482-754-1 / DIN EN 60754-1 / IEC 60754-1
- flame-retardant acc. to CSA FT4
- bundle fire test acc. to DIN VDE 0482-332-3-24 / DIN EN 60332-3-24 / IEC 60332-3-24
- smoke density acc. to DIN VDE 0482-1034-1+2 / DIN EN 61034-1+2 / IEC 61034-1+2
- oil-resistant acc. to DIN VDE 0473-811-404 / DIN EN 60811-404 / IEC 60811-404, UL Std 1277 Tab. 12.2, Oil Res I / Oil Res II
- Cable Flame Test acc. to UL Std. 1581 Sec. 1061
Notes
- the conductor is metrically (mm²) constructed, AWG numbers are approximated, and are for reference only
- Further details, as well as information regarding custom solutions and suitable connection technology, can be found at [email protected]
Application
- Designed for flexible use, especially for torsional stress in the cable loop of a wind turbine. Thanks to its halogen-free composition, the CSA FT4 flame test and an extremely abrasion-resistant sheath, it is ideal for use in offshore wind turbines. The voltage level for all dimensions is designed for 0.6/1 kV. This means that the cable can also be laid in parallel in accordance with UL standards; spatial separation of the cable routes is not necessary. The HELU WK series has been successfully tested with over 18,000 torsion cycles and therefore offers optimum functional reliability far beyond the service life of a wind turbine. Advantages of the WK 137 torsion compared to H07BN4-F: Fire behaviour according to IEC 60332-3-24, higher abrasion resistance.
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