At the end of this module, you will be able to:
- Ground fault interrupter circuits
- Working on electrical components
- Electric cords
- Reducing personal conductivity
The following key questions are answered in this module:
What is the most common form of electrical protection device?
The most common form of electrical protection device is the fuse or circuit breaker. These are devices that are designed to protect the electrical system from receiving too much current.
What is grounding and how does this safety feature work?
Grounding occurs when a ground wire is connected from ground potential to the frame of an electrical device. A ground wire is provided so that there can be an alternate path for the electricity to flow back to ground potential if an electrical short occurs.
What are the two levels of electrical safe practices that all workers should follow?
The first, qualified work practices are those performed by team members who have relevant electrical education or experience that has prepared them to work with electrical systems. The second, authorized work practices are those performed by team members formally identified to perform a lockout/tagout, as well as permitted to work on or near energized conductors when the appropriate permit is in place.
What are some safety procedures that should be implemented to ensure good housekeeping to prevent electrical fires?
You should keep your equipment and work area(s) clean and organized, dispose of trash properly, and follow the following practices: keep machines and tools properly lubricated, do not leave machinery or heating equipment running unattended after working hours, do not leave grease, dust, or dirt build up on machinery, and to not leave cords tangled or lying across an area where people walk.
What are some conductive materials that should be removed by workers before starting work on an electrical task?
The following should be considered dangerous conductive materials, and should be removed before starting electrical work: Conductive apparel-watch bands, bracelets, rings, key chains, necklaces, metalized aprons, cloth with conductive thread, and metal headgear. Not only conductive apparel, but conductive tools, which should be handled in ways that prevent them from contacting exposed, energized conductors or circuit parts. Lastly, portable ladders must not be used when working on or near exposed, energized parts.
Below is a transcript of the video sample provided for this module:
Use the additional resources and links below to learn more about this topic: