Using Power Tools and Equipment
Workers using power tools and equipment should follow these tool safety tips to avoid misusing equipment:
- Never carry a tool by the cord.
- Never yank the cord to disconnect it.
- Ensure cords do not cause a tripping hazard.
There are many tripping hazard in this construction area?
- Keep cords away from heat, oil, and sharp edges.
- Disconnect tools when not in use and when changing accessories such as blades and bits.
- Do not hold fingers on the switch button while carrying a plugged-in tool.
- Use gloves and appropriate footwear.
- Store tools in a dry place when not using.
- Don't use tools in wet/damp environments.
- Keep working areas well lit.
- Remove damaged tools from use.
- Use double-insulated tools.
- using multi-receptacle boxes designed to be mounted by fitting them with a power cord and placing them on the floor
- fabricating extension cords with ROMEX wire
- using equipment outdoors that is labeled for use only in dry, indoor locations
- attaching ungrounded, two-prong adapter plugs to three-prong cords and tools
The ground prong must never be removed from the plug.
- using circuit breakers or fuses with the wrong rating for over-current protection (e.g., using a 30-amp breaker in a system with 15 or 20 amp receptacles - protection is lost because it will not trip when the system's load has been exceeded)
- using modified cords or tools (i.e., ground prongs removed, face plates, insulation, etc.)
- using cords or tools with worn insulation or exposed wires
Workers need to know even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment.
What Must Your Employer do to Protect You?
Your employer needs to ensure all power tools and equipment are maintained in a safe condition to:
- ground power supply systems, electrical circuits, and electrical equipment
- frequently inspect electrical systems to ensure path to ground is continuous
- ensure workers understand to inspect electrical equipment prior to use
- ensure ground prongs are not removed from tools or extension cords
- ground exposed metal parts of equipment
Knowledge Check Choose the best answer for the question.
2-9. Using a 30-amp breaker in a system with 15 or 20 amp receptacles is not allowed because _____.
You forgot to answer the question!