What is an Arc Flash Label? 

Arc flash safety labels are applied to electrical equipment to warn workers of the potential for an arc flash event. These labels provide critical information about hazard levels, safe working distances, and required personal protective equipment (PPE). 

They are typically found on electrical panels, switchgear, control cabinets, and other enclosures where arc flash risks are present. By offering clear visual warnings, these labels help prevent workplace accidents and ensure compliance with safety regulations. 

Compliance: Meeting UK Safety Standards 

Ensuring compliance with UK safety regulations is essential for reducing workplace risks and meeting legal requirements. Key considerations include: 

• Adhering to UK Regulations – Labels should follow guidelines outlined in BS 7671 (IET Wiring Regulations) and Health & Safety Executive (HSE) standards. 

• Proper Label Placement – Labels should be positioned on electrical equipment, ensuring high visibility to workers accessing electrical panels, switchgear, and distribution boards. 

• Regular Risk Assessments – Employers must conduct periodic arc flash risk assessments and update labels accordingly to reflect any changes in equipment or risk levels. 

Key Components of an Arc Flash Label

1. Danger or Warning Header:
   DANGER (Red) and WARNING (Orange): Indicates hazard severity, compliant with BS EN ISO 7010 standards.
2. Arc Flash Boundary (1.2 cal/cm² Exposure Threshold):
   Shows the distance where a worker could suffer a second-degree burn without PPE.
3. Incident Energy at Working Distance (cal/cm² or J/cm²):
   Indicates arc flash severity and helps determine necessary PPE.
4. Equipment Identification:
   Clearly identifies equipment to ensure proper risk assessment.
5. Last Updated Date:
   Indicates when the label was last reviewed or updated.
6. Nominal System Voltage:
   Specifies the system's voltage to inform workers of shock and arc flash risks.
7. Limited Approach Boundary:
   Defines the safe approach distance for unprotected workers.
8. Restricted Approach Boundary:
   Distance for qualified personnel only, requiring full PPE and additional safety measures.
9. Glove Class Requirement:
   Lists Class 00 to Class 4 gloves based on the system's voltage level.
10. PPE Requirements (BS EN IEC 61482-1-1 & UK Regulations):
    Includes arc-rated protective clothing, eye protection, insulated gloves, and hearing protection.

Why Arc Flash Labels Matter 

Arc flash hazard labels are more than just compliance tools—they are a vital part of workplace safety. Key benefits include: 

• Protecting Workers – Clearly communicates hazards, reducing the risk of serious electrical injuries. 

• Enhancing Safety Awareness – Helps workers take appropriate precautions when working with electrical equipment. 

• Reducing Downtime – Prevents electrical accidents that could lead to costly operational disruptions. 

Certags provides durable, high-quality arc flash labels that meet safety standards, helping to protect workers, improve awareness, and minimise downtime in the workplace. 

The Role of Training in Arc Flash Safety 

Arc flash labels alone are not enough to prevent incidents—training is equally critical. Proper training ensures workers: 

• Understand the information provided on electrical hazard labels. 

• Follow PPE requirements and safety procedures. 

• Implement risk mitigation strategies based on hazard assessments. 

Maintaining and Updating Arc Flash Labels 

To remain effective, these labels must be regularly inspected and updated. Key factors to consider include: 

• Routine Inspections – Labels should be checked during scheduled maintenance to ensure they are intact and legible. 

• Environmental Factors – Heat, moisture, and exposure to chemicals can cause labels to fade or degrade over time. 

• Digital Solutions – QR codes on labels can provide real-time access to updated safety data and risk assessments. 

• Updating Labels – Changes in equipment, voltage levels, or hazard assessments require label revisions to maintain compliance and safety. 

Improve Safety with the Right Labels 

Clear, compliant arc flash hazard labels are essential for workplace safety and regulatory compliance. By understanding their importance, ensuring proper placement, and maintaining up-to-date labelling, businesses can create a safer working environment. Now is the time to assess your current electrical hazard labels and safety protocols to ensure they meet UK standards and effectively protect your workforce.