Working with Line Voltage (110 V / 230 V / >50 V)

Dangers of Line Voltage

  • Line voltage poses serious hazards and can cause injury or death or damage to equipment.
  • Voltages above 50 volts are typically considered dangerous (depending on the regulation).
  • Always obey local regulations and obtain necessary permissions before working with line voltage.
  • Strictly adhere to safety instructions provided by the manufacturer of any used equipment / tool / component.

Basic Safety Advice

  • Always disconnect from mains before working on equipment.
  • Implement safety measures against unintended equipment activation.
  • Wear personal protective equipment (PPE) suitable for the task.
  • Avoid working in wet or damp conditions.
  • Use insulated tools and equipment rated for the specific voltage.
  • Always test for voltage presence before beginning any work.
  • Ensure a clear and safe workspace, free from potential hazards.
  • Never bypass safety devices or features.
  • Stay informed about potential changes in local regulations and safety standards.


The provided safety advice and information are general in nature. Always refer to and respect local regulations and standards specific to your jurisdiction when working with line voltage. Any advice given here must be cross-referenced with local requirements.
No liability whatsoever is assumed by the providers of this information or any advice given here or in any post. Ensure that all practices and precautions are in full compliance with applicable regulations.
It is strongly advised to consult with professionals experienced in electrical work and safety for specific guidance.