Electrophoresis equipment may be a major source of electrical hazard in the laboratory. The presence of high voltage and conductive fluid in this apparatus presents a potentially lethal combination.

Many people are unaware of the hazards associated with this apparatus; even a standard electrophoresis operating at 100 volts can deliver a lethal shock at 25 milliamps. In addition, even a slight leak in the device tank can result in a serious shock. Protect yourself from the hazards of electrophoresis and electrical shock by taking these precautions:

• Use physical barriers to prevent inadvertent contact with the apparatus.
• Use electrical interlocks.
• Frequently check the physical integrity of the electrophoresis equipment.
• Use warning signs to alert others of the potential electrical hazard.
• Use only insulated lead connectors.
• Turn the power off before connecting the electrical leads.
• Connect one lead at a time using one hand only.
• Ensure that your hands are dry when connecting the leads.
• Keep the apparatus away from water and water sources.
• Turn the power off before opening the lid or reaching into the chamber.
• Do not disable safety devices.
• Follow the equipment operating instructions.