15 Nov Ground wire strands
ENERGY – GROUND WIRE STRANDS
STEEL STRANDS
The ground wire strand is an essential element in overhead power lines to protect conductors from lightning.
FGC are able to respond to the technical specifications of every nation.
The strand is supplied as finished or semi-finished product in the following versions:
- galvanized
- heavy galvanization
- aluminium clad steel (ACS)
- zinc-5% aluminium Mischmetal alloy
TERNA CERTIFIED FINISHED PRODUCTS – Ground wire steel strands
PROPERTIES OF MATERIALS
GALVANIZED AND HEAVY GALVANIZED STEEL
| Characteristics | Value |
|---|---|
| Diameters | from 8,00 to 12,50 mm |
| Tensile strength | > 135 daN/mm2 |
| Class and mass of coating | A > 230 g/m2 |
| Heavy galvanized coating | > 549 g/m2 |
| Theoretical unit weight | from 396 to 733 kg/km |
| MBL | from 5685 to 14450 daN |
| Theoretical electric resistance at 20°C | from 1,705 to 2,416 Ohm/km |
| Standards | CEI 7.2, EN50189, IEC, ASTM, BS |
| Certifications | TERNA, ENEL, RFI |
ALUMINIUM CLAD STEEL – ACS
| Characteristics | Value |
|---|---|
| Diameters | from 9,00 to 14,50 mm |
| Theoretical unit weight | from 329 to 842 kg/km |
| MBL | from 5900 to 15240 daN |
| Theoretical electric resistance at 20°C | from 0,6821 to 1,714 Ohm/km |
| Standards | CEI 7.11 |
| Certifications | TERNA, ENEL, RFI |
ZINC-5% ALUMINIUM MISCHMETAL ALLOY COATED STEEL
| Characteristics | Value |
|---|---|
| Diameters | from 8,00 to 12,50 mm |
| Tensile strength | > 135 daN/mm2 |
| Class and mass of coating | A > 230 g/mm2 |
| Theoretical unit weight | from 396 to 733 kg/km |
| MBL | from 5685 to 14450 daN |
| Theoretical alectric resistance at 20°C | from 1,705 to 2,416 Ohm/km |
| Standards | EN50540, ASTM B598-08 |
CONSTRUCTIONS
ADVANTAGES
– Hot dip heavy galvanization
– Computerized control of the coating thikness
– Integrated production cycle
– Ability to respond to the international technical specifications
– Small lots for maintenance/repair
RTE (Réseau de transport d’électricité) CERTIFIED SEMI-FINISHED PRODUCTS
Steel core for bimetallic ground wire strands
PROPERTIES OF MATERIALS
GALVANIZED STEEL
| Characteristics | Value |
|---|---|
| Diameters | from 4,30 to 12,25 mm |
| Coating | Galvanized |
| Grease (on request) | Type A EN50326 |
| Standards | EN 50189/50182, IEC 60888/61089, ASTM B 498, BS 215 |
| Certifications | RTE (ACSR Phlox and Pastel) |
CONSTRUCTIONS
ADVANTAGES
– Computerized control of the coating thikness
– Integrated production cycle
– Ability to respond to the international technical specifications
