BoatHowTovideo

Lightning Protection for Boats - NIGEL CALDER's take on the subject | Ask The Expert from BoatHowTo

1 December 2022 · 5 min · 16K views

What this video covers

Nigel Calder explains that while fully shielding marine electronics from lightning remains difficult, boaters can effectively protect the hull and crew by following established lightning protection standards.1:35 The ABYC previously downgraded its lightning standards to an advisory bulletin due to a lack of scientific consensus, but modern European standards for buildings provide a reliable framework for marine applications because they focus on the physical properties of lightning.1:06 A proper installation requires a substantial conductor, such as 1/0 gauge or 50mm wire, tied to the boat’s grounding system.3:10 When a boat sits on the hard, this system must also connect to a ground on shore to prevent catastrophic damage to masts, VHF antennas, and internal electrical components.3:21 While surge protection devices for DC systems are improving, protecting sensitive electronics often requires specialised expertise.1:56 Proper internal bonding of all metal objects remains the primary method for preventing hull breaches and ensuring personnel safety during a strike.3:58

Watch on YouTube

More from BoatHowTo

Rewiring an old boat if everything works as should? 😟💰 | Ask The Expert with NIGEL CALDEROct 2026Grounding on Aluminium Yachts 🔧 | Ask The Expert with NIGEL CALDERSept 2026Boat ELECTRIC PROPULSION with only LEAD ACID Batteries ?? | Ask The Expert with NIGEL CALDERSept 2026MaxProp: More Pitch in Reverse than in Forward? 🤔 | Ask The Expert with NIGEL CALDERSept 2026

From BoatHowTo — see the channel’s boat, crew, and every analysed video.

The Sailing Directory Newsletter

One email with the fleet's best finds — the moments, boats, and stories worth your watch time. Enter your own address to get your own copy.

Report an issue