Mastercone 750mm Danger Overhead Cables Two-Piece Road Traffic Cone

Who Is This For?

Electrical contractors, power infrastructure operators, utility companies, highways maintenance teams, and construction site managers working near overhead power lines or electrical cables. Also relevant for any contractor whose method statement or safe system of work requires a specific overhead cable warning cone at a work site boundary, access point, or plant crossing point.

Typical Applications

• Overhead power line crossings on construction and civil engineering sites where plant or vehicles must pass beneath live electrical cables
• Utility works directly below or adjacent to overhead electrical infrastructure including distribution lines, substations, and transmission cables
• Highway maintenance works on routes with overhead cables where an approach warning is required for drivers and plant operators
• Rail and telecoms infrastructure works near overhead line equipment (OLE) where access points must be clearly marked
• Agricultural and rural construction sites where overhead cables cross access tracks used by tall plant and machinery
• Event and temporary structure set-up in areas where overhead cables are present and crew must be warned before raising equipment
• Any site where the risk assessment or method statement specifies deployment of "Danger Overhead Cables" warning cones

How to Use

1. Identify all overhead cable hazards on site during the pre-start risk assessment. Mark the hazard corridor with these cones at every approach point and at regular intervals along the cable run.
2. Position cones so the yellow "Danger Overhead Cables" sleeve faces approaching operatives, drivers, and plant operators. The sleeve must be visible at approach speed from all directions of travel.
3. On public roads, place cones at spacings required by the approved traffic management plan, consistent with Chapter 8 Table A1.3 for the road type and speed limit. The 750mm cone is compliant for single carriageway roads up to 50mph and dual carriageways up to 40mph.
4. Inspect the sleeve before each deployment. The yellow warning text and lightning bolt symbol must be fully legible. A degraded or unreadable sleeve does not fulfil the hazard communication purpose of this cone.
5. Replace sleeves that have faded, cracked, or lost legibility. Replacement "Danger Overhead Cables" sleeves are available separately.
6. At end of shift, recover cones, inspect for damage, and store with sleeves protected from prolonged UV exposure.

Safety

• This cone is a warning device. It does not make an area beneath overhead cables safe to enter. It communicates the hazard. All operatives and plant operators must still follow the relevant requirements of the Electricity at Work Regulations 1989 and any site-specific electrical safety rules.
• Where a safe working distance beneath overhead cables is specified by the network operator or in the risk assessment, the cone deployment perimeter must respect that distance. The cone marks the boundary. It does not define the safe clearance.
• CDM 2015 places duties on principal contractors and designers to identify and manage overhead cable hazards during the planning and construction phase.
• Operatives placing or recovering cones near overhead cables on live carriageways must wear EN ISO 20471 Class 3 high-visibility clothing as a minimum.
• Do not substitute this cone for a permit-to-work system, electrical isolation, or mechanical exclusion zone barrier where those are required by the risk assessment.

Maintenance

Inspect the yellow "Danger Overhead Cables" sleeve at the start of each shift. Wipe with a damp cloth to remove mud, oil, or debris. The sleeve must be fully legible for the cone to fulfil its hazard warning function. Replace the sleeve if the text or lightning bolt symbol is faded, cracked, or obscured. The blue centre and black base should be inspected for cracking or deformation before each deployment. Replace damaged components individually. Contact sales@securasite.co.uk or 0330 056 4420 for replacement orders and sleeve availability.