COPPER WIRES

Pure copper down conductor wires for lightning protection earthing systems. Available in four types: stranded electrolytic copper, bare solid round, PVC insulated stranded and PVC covered solid round. Multiple cross-sections from 7.6mm to 16mm. NFC 17-102, IEC 62305 and EN 50164 compliant.

Wire Types

4 Types

Stranded, solid, PVC, bare

Material

99.9%

Pure electrolytic copper

Variants

19+

Reference codes available

Standard

IEC 62305

NFC 17-102 · EN 50164

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Manufacturer direct — no intermediaries. Ships from Izmir, Turkey worldwide.

ORBITAL copper wires are the preferred down conductor material for lightning protection systems. Per IEC 62305-3, down conductors must have a minimum cross-section of 50mm² for copper — the stranded and solid round variants in this range meet and exceed this requirement. Copper's combination of high conductivity, corrosion resistance and workability makes it the standard choice for down conductor installations worldwide.

Four conductor types are available to suit different installation requirements: stranded electrolytic copper for flexible routing, bare solid round for direct burial, PVC insulated stranded for installations requiring electrical isolation from structural elements, and PVC covered solid round for general purpose down conductor use.

Stranded Electrolytic Copper Wires

Flexible — down conductor

Reference	Dimensions (mm)	Material	Weight/m (kg)
OLT-035D	7.60 × 1000 × 7.60	Copper	0.40
OLT-050D	9 × 1000 × 9	Copper	0.47
OLT-070D	11 × 1000 × 11	Copper	0.65
OLT-095D	12.50 × 1000 × 12.50	Copper	0.85
OLT-120D	15 × 1000 × 15	Copper	1.10
OLT-150D	16 × 1000 × 16	Copper	1.34

Bare Solid Round Wires

Direct burial — earthing system

Reference	Dimensions (mm)	Material	Weight/m (kg)
OLT-058D	8 × 1000 × 8	Copper	0.45
OLT-060D	9 × 1000 × 9	Copper	0.55
OLT-061D	10 × 1000 × 10	Copper	0.75
OLT-110D	12 × 1000 × 12	Copper	1.10
OLT-125D	15 × 1000 × 15	Copper	1.55

PVC Insulated Stranded Copper Cable

Insulated — isolated down conductor

Reference	Dimensions (mm)	Material	Weight/m (kg)
OLT-113D	9.50 × 1000 × 9.50	Copper	0.40
OLT-114D	10.50 × 1000 × 10.50	Copper	0.55
OLT-115D	11.50 × 1000 × 11.50	Copper	0.75
OLT-116D	12.50 × 1000 × 12.50	Copper	1.00

PVC Covered Solid Round Cable

PVC covered — general purpose

Reference	Dimensions (mm)	Material	Weight/m (kg)
OLT-123D	8 × 1000 × 8	Copper	0.40
OLT-124D	9 × 1000 × 9	Copper	0.55
OLT-126D	10 × 1000 × 10	Copper	0.75
OLT-127D	13.16 × 1000 × 13.16	Copper	1.20

Custom cross-sections and lengths available on request. Weights shown per 1000mm. Contact ORBITAL for project requirements.

Material & Construction
Material	99.9% pure electrolytic copper
Stranded Types	Multiple strand construction for flexibility and fatigue resistance
Solid Types	Single conductor — lower inductance, preferred for down conductors
PVC Options	PVC insulation or covering for electrical isolation and mechanical protection
IEC 62305 Down Conductor Requirements
Minimum Cross-Section (Copper)	50mm² per IEC 62305-3 for down conductors
Preferred Type	Flat tape conductor preferred — greater surface area per IEC 62305 guidance
Round Conductor	Acceptable where tape routing is not practical
Compliance & Standards
Primary Standards	NFC 17-102:2011 · IEC 62305-3
Component Standard	EN 50164-1 — Lightning Protection Components
CE Marking	Yes

Routing the Down Conductor

Route down conductors as vertically as possible — avoid horizontal runs exceeding 0.5m. Fix to the structure at maximum 1m intervals. Bend radii must not be less than 200mm to avoid inductance increases. Route away from doors, windows and occupied areas where possible.

Cut End Protection

If a rod must be cut to length, apply a corrosion-resistant compound to the cut end to seal the exposed steel core. The threaded ends are protected by the thread profile itself, but cut ends are vulnerable to accelerated corrosion if left unprotected in aggressive soils.

Earthing Resistance Target

Protect the bottom 2m of the down conductor with a mechanical guard tube where it is exposed at or near ground level. Connect the lower end of the down conductor to the earth electrode via the test joint clamp using an appropriate exothermic weld or listed mechanical connector.