Core Equipment Stock (Helsinki Logistics Center)
SKU: GS-CB16-1500-FI
Threaded Copper-Bonded Earth Rod
High-tensile steel core with 99.9% pure electrolytic copper coating engineered for moraine and glacial till soils.
| Diameter / Length | 16 mm / 1500 mm |
| Copper Thickness | ≥ 254 microns |
| Tensile Strength | 600 N/mm² |
SKU: GS-EXW-90G-FI
Exothermic Weld Metal & Graphite Mold
Creates permanent molecular copper-to-copper or copper-to-steel bonds immune to freeze-thaw cycles.
| Cartridge Weight | 90g / 115g / 150g |
| Reaction Temp | > 2500 °C |
| Mold Lifespan | 70–90 Welds |
SKU: GS-SPD-T12-4P
Type 1+2 Industrial Surge Arrester (3+1)
Pluggable DIN-rail SPD with thermal disconnector and remote signaling contact for main distribution boards.
| Max Discharge (Imax) | 50 kA (8/20 μs) |
| Lightning Current (Iimp) | 12.5 kA (10/350 μs) |
| Operating Temp | -40 °C to +80 °C |
SKU: GS-BRS-CPL16
High-Strength Silicon Bronze Coupler
Counter-bored heavy-duty coupling sleeve ensuring direct rod-to-rod contact during deep hydraulic installation.
| Thread Size | M16 / 5/8" UNC |
| Material | CuSi3Mn1 Bronze |
| Corrosion Rating | EN 62561-1 Class H |
SKU: GS-GEM-25KG
Conductive Carbon Earthing Backfill
Low-resistivity graphite-bentonite compound for drilled boreholes in Finnish granite and gneiss bedrock.
| Resistivity | < 0.12 Ω·m |
| Package Weight | 25 kg Moisture-Proof Bag |
| Leaching | Zero Groundwater Impact |
SKU: GS-PIT-POLY-AR
Frost-Resistant Polymer Earth Inspection Pit
Load-rated ground access chamber with removable copper test bar for periodic earth resistance testing.
| Static Load Rating | 5000 kg (50 kN) |
| Dimensions | 250 × 250 × 300 mm |
| Cold Impact Rating | Down to -45 °C |
Vertical Rod Grid Resistance Estimator
Estimated Grid Resistance (Rg)
12.63 Ω
For high-resistivity moraine or granite terrain, consider deep borehole electrodes with conductive backfill (GS-GEM-25KG) to achieve < 4 Ω.
Finnish & European Technical Standards
| Standard Code | Scope & Application | Verification Status |
|---|---|---|
| SFS 6000 | Low-voltage electrical installations — Finnish national requirements for protective earthing | COMPLIANT |
| SFS-EN 62561-2 | Lightning protection system components (LPSC) — Conductors and earth electrodes | VERIFIED |
| SFS-EN 62305 | Protection against lightning — Risk management and structural grounding grids | VERIFIED |
| IEEE Std 837 | Qualifying Permanent Connections Used in Substation Grounding (Exothermic Welds) | VERIFIED |
| SFS-EN 61643-11 | Low-voltage surge protective devices — Performance requirements and cold-climate testing | VERIFIED |
Registered Office & Nordic Logistics Hub
Corporate Headquarters (Finland)
- Legal EntityGround Store Pro Oy
- Street AddressMannerheimintie 113
- Postal Code / City00280 Helsinki
- Region / CountryUusimaa, Finland
- Direct Telephone+358 9 4245 1890
Engineering & Dispatch
- Sales & Quotessales@ground-store.pro
- Technical Deskengineering@ground-store.pro
- Operating HoursMon–Fri, 08:00–16:30 EET
- Dispatch HubVantaa / Vuosaari Cargo
- Portal StatusCatalog Sync v4.2