Connect an Earth Terminal Sign

Connect an Earth Terminal Sign – ISO 7010 Mandatory Symbol MS0012

The Connect an Earth Terminal Sign (MS0012) displays the ISO 7010 M022 blue-circle mandatory pictogram, showing the standard electrical earth/ground symbol on a photoluminescent yellow-green ground. It instructs crew and electricians that equipment must be earthed or bonded to the vessel’s grounding system before it is energised or before work begins. Manufactured for permanent shipboard service, the sign holds its clarity through engine room heat, vibration, and salt exposure across switchboards, workshops, and cargo tank areas.

Static discharge during tank cleaning, fuel transfer, and cargo operations, along with fault current paths in electrical equipment, both rely on a properly connected earth terminal to prevent sparks, shock, or equipment damage. A missed earthing step during a portable tool setup or a tank cleaning operation has been the direct cause of fires and explosions aboard vessels carrying flammable cargo. The Connect an Earth Terminal Sign gives electricians, chief engineers, and safety officers a permanent, unmissable reminder at the point of connection, reinforcing the vessel’s electrical safety and static control procedures.

Why Earthing Matters

Static electricity generated during cargo transfer, tank washing, or fuel bunkering can accumulate to a level capable of igniting flammable vapours if the equipment involved is not properly earthed. Electrical equipment without a sound earth path also presents a shock and fire risk if a fault develops. Under the ISM Code and applicable electrical safety codes, the Company and Master must ensure earthing procedures are followed at fixed connection points, and posting this sign at the terminal itself closes the gap between the written procedure and the point of actual connection.

Compliance and Certification

Manufactured to the ISO 7010 M022 mandatory-action pictogram on photoluminescent substrate, this sign supports the safety sign provisions referenced in SOLAS Chapter II-2 and forms part of a documented electrical and static-control safety programme reviewed during flag State inspection, Port State Control, and class surveys with DNV, ABS, and Lloyd’s Register. Keeping this sign posted at every fixed earthing point keeps procurement and audit trail records aligned for fast reordering across a fleet.

Installation Recommendations

Mount the sign directly at switchboards, portable tool earthing points, tank cleaning machine connections, and cargo hose bonding cable terminals. Rigid aluminium composite panels suit exterior bulkheads and weather decks exposed to salt spray, while the self-adhesive vinyl format is suited to interior switchboard rooms and workshop equipment. Clean the mounting surface before fitting, and keep the sign clear of cable runs or terminal covers so the connection point itself remains fully visible.

• 425 x 425mm rigid or self-adhesive format for steel, aluminium or GRP surfaces (also available in 150 x 150mm and 225 x 225mm)
• Photoluminescent base charges under ambient light and stays visible during blackout or power loss
• UV-stable, saltwater and corrosion-resistant construction rated for exterior deck and engine room service
• Fixing options include self-adhesive vinyl, rigid ACM panel with pre-drilled holes, or mechanical fasteners
• Manufactured to the ISO 7010 M022 mandatory pictogram standard for consistent recognition fleet-wide

Order the Connect an Earth Terminal Sign (MS0012) today to reinforce static and electrical safety procedure before your next survey or inspection. Bulk pricing is available for fleet-wide rollouts, and our team can match sizing and substrate to your vessel’s existing signage package on request.

Complete your onboard PPE programme with our Hazard Signs range and Fire Fighting Signs for full coverage of mandatory, warning, and emergency signage requirements.