INOX STAINLESS STEEL WIRES

Inox stainless steel down conductor wires for lightning protection systems in marine, coastal and chemically aggressive environments. Where copper cannot be used due to galvanic compatibility or environmental regulations, stainless steel wires provide a compliant and durable alternative. NFC 17-102, IEC 62305 and EN 50164 compliant.

Material

Inox SS

304/316 stainless steel

Application

Marine & SS

Corrosive environments

Variants

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 inox stainless steel wires are the preferred down conductor choice for lightning protection installations in marine, offshore, coastal and chemically aggressive environments. Where copper conductors would suffer accelerated corrosion or where regulations prohibit copper, stainless steel provides a durable, long-service-life alternative that fully complies with IEC 62305-3 requirements for down conductors.

Available in six cross-sections from 7mm to 13mm, the range covers the full spectrum of down conductor requirements from single lightning rod residential installations to multi-conductor industrial systems. All variants are manufactured from 304/316 grade stainless steel for maximum corrosion resistance.

Inox Stainless Steel Wires

304/316 SS — marine & aggressive environments

Reference	Dimensions (mm)	Material	Weight/m (kg)
OLT-230D	7 × 1000 × 7	Stainless Steel	0.25
OLT-231D	8 × 1000 × 8	Stainless Steel	0.42
OLT-232D	10 × 1000 × 10	Stainless Steel	0.57
OLT-233D	13 × 1000 × 13	Stainless Steel	0.91
OLT-234D	7 × 1000 × 7	Stainless Steel	0.31
OLT-235D	8 × 1000 × 8	Stainless Steel	0.40

Custom cross-sections available on request. Weights shown per 1000mm.

Material & Construction
Material Grade	304 / 316 Stainless Steel
Construction	Stranded stainless steel wire
Primary Advantage	Excellent corrosion resistance — marine, coastal and chemical environments
Performance
Copper Thickness	254µm — exceeds IEC 62561 minimum of 250µm
Conductivity	Lower than copper — verify cross-section meets IEC 62305-3 requirements
Service Life	Exceptional — suitable for installations with no planned maintenance access
Compliance & Standards
Primary Standards	NFC 17-102:2011 · IEC 62305-3
Component Standard	EN 50164-2 · IEC 62561
CE Marking	Yes
Applications
Primary Use	Earth termination system for lightning protection systems
Advantage vs Solid Copper	Lower cost, higher mechanical strength — suitable for hard and rocky soils
Soil Suitability	All soil types — use with ORBetter® in high-resistivity soils

Down Conductor Routing

Route as vertically as possible — avoid horizontal runs exceeding 0.5m. Fix with stainless steel saddles and fixings compatible with 304/316 grade steel. Avoid contact with dissimilar metals in wet conditions to prevent galvanic corrosion at fixing points.

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

Install test joint at approximately 0.5m above ground level on each down conductor. Protect lower 2m with a mechanical guard tube. Connect to earth electrode using stainless steel compatible exothermic weld or listed mechanical connector.