Electrical Hazard Sign

Electrical Hazard Sign – ISO 7010 Warning Symbol HS0042

This Electrical Hazard sign warns crew and contractors that the panel, cable run or enclosure nearby carries live electrical current capable of causing shock, burns or arc-flash injury. The sign combines the standard black lightning-bolt hazard triangle with a bold “DANGER – Electrical hazard” text panel beneath it, giving anyone approaching the area an instant visual cue plus an explicit written instruction in a single fixture.

As SKU HS0042 in the Hazard Signs range, it is built for continuous marine exposure and suits electrical workshops, cable trunking runs, distribution boards and any compartment where exposed or enclosed live wiring presents a shock risk.

The upper section shows the familiar black lightning bolt inside a warning triangle, while the lower panel spells out “DANGER” in bold capitals followed by “Electrical hazard” in smaller text, a combined pictogram-and-wording format that gives a broader shock warning than a single piece of high voltage plant alone.

Because electrical hazards can be present in general wiring, distribution boards and control panels throughout a vessel and not only at dedicated high voltage plant, the written panel gives crew and visiting contractors clear, general context wherever live equipment is installed. The photoluminescent base keeps the electrical hazard warning visible for a period after lighting fails, useful in machinery and workshop spaces where a power event and a loss of main lighting can occur together.

Why Electrical Hazard Marking Matters

Electrical shock and arc-flash incidents remain a leading cause of injury in maintenance work, and clear signage at distribution boards, panels and cable runs is a fundamental control recognised across marine and industrial electrical safety codes.

Electrical hazard signage supports permit-to-work and isolation procedures before any panel or enclosure is opened, and reminds crew and visiting contractors that appropriate isolation and testing is required before work begins. It also gives supervisors a clear reference point when briefing new starters on which general areas of the vessel carry live electrical risk.

Compliance and Certification

This sign is produced to align with IMO shipboard safety signage guidance and the combined pictogram-and-text warning format used across shipping and industrial electrical safety, supporting the ISM Code’s requirement for documented control of electrical hazards. A visible electrical hazard warning at distribution boards, panels and workshop cable runs is a documented control that classification surveyors and internal safety auditors expect to see during an electrical safety review.

Installation Recommendations

Mount the sign directly on or beside every distribution board, panel or cable run presenting a live electrical hazard, at a height that is seen before the enclosure is opened or work begins nearby. Use the pre-drilled fixing holes with marine-grade fasteners for exterior and high-vibration machinery spaces, and the self-adhesive backing for interior panel doors and workshop applications. Confirm during permit-to-work reviews that the sign remains legible on every relevant panel, particularly after equipment has been serviced or replaced.

• 425 x 567mm rigid or self-adhesive format for steel, aluminium or GRP surfaces
• Photoluminescent base for visibility during power loss or blackout drills
• UV-stable, saltwater-resistant construction for long-term exterior exposure
• Self-adhesive or pre-drilled fixing options for fast, secure installation
• Combined pictogram and bold English text for added clarity beyond the symbol alone

Order the HS0042 Electrical Hazard sign today to mark every distribution board, panel and workshop cable run before your next electrical safety audit. Safety Sign Hub stocks the complete IMPA/ISSA-coded hazard sign range and ships marine-grade signage across Australia and to vessels in port, with bulk pricing for fleet orders.

See the full Hazard Signs range for related ISO 7010 warning pictograms, or browse our Fire Fighting Signs for IMO A.654(16) fire control signage to complete your vessel’s safety signage plan.