High-voltage cable 35mm² (150kA) copper

Verified performance – the cable holds the SEP-BBJ certificate confirming resistance to a 150 kA current impulse and a 200 kV voltage impulse. These parameters allow its use in Lightning Protection Class I, the most demanding category of lightning protection installations.

When to use it? A high-voltage cable is essential wherever the lightning current discharge route runs near electrical installations, metal pipes, ventilation ducts, or other conductive elements, and maintaining the standard isolation distance is not possible. The insulation reduces the required separation distance to just 750 mm, compared to the standard values applicable to uninsulated conductors.

Cable construction consists of a stranded copper conductor with a cross-section of 35 mm², a cross-linked polyethylene insulation layer, and an outer protective sheath. The total outer diameter is 18.5 mm, making it straightforward to route the cable through existing cable runs and to fit dedicated connection heads.

Technical specifications

Dedicated accessories: compatible connection heads are available for this cable – a mast connection head and an equipotential bonding connection head – ensuring a secure and durable connection within the lightning protection system.

Cable cut to length – important information before you buy

This cable is sold by the metre: we cut it from the drum or coil to exactly the length stated in your order, so you only pay for what you actually need. A length cut to your specification is a made-to-order item and therefore cannot be returned – including under the right to cancel distance contracts. Before placing your order, please check the required length and cross-section carefully.

This does not affect your statutory rights: if the cable is faulty, or the length or cross-section delivered does not match your order, please let us know – we will handle your complaint under the general rules.