24 Questions
What causes the issues with electronics equipment, according to the text?
The movement of static electricity
What voltage range is mentioned as being able to cause damage to equipment?
100 volts or less
What happens when electrostatic discharge occurs?
Damage to the equipment
Why is maintaining over 60% humidity levels impractical in most environments?
It leads to uncomfortable working conditions
What type of environment is typically associated with low humidity levels?
Air-conditioned environment
What term is used to describe the electricity that effectively stays in one place?
Static electricity
What is the recommended action before opening a computer or device?
Remove all power sources
Why is it recommended not to touch components you are uncertain about?
To prevent electrocution
What should you do if you find very high voltages inside a server or laser printer?
Avoid working around that much power
What should you never do when there is an electrical fault inside a device?
Connect yourself to the electrical ground
How should you lift heavy equipment safely?
Always lift with your legs and keep your back straight
What is the recommended action in case of an electrical fire with equipment?
Use carbon dioxide FM 200 chemicals or dry chemicals
Which one of these reduces the risk of getting particulates inside your nose and mouth while working with dusty computers?
Air filter mask
What should you never do in case of an electrical fault?
Connect yourself to an electrical ground
What is the purpose of touching any exposed metal on the device you're working with?
To prevent electrostatic discharge
What should you never do when working inside a device connected to the power system?
Connect yourself to the electrical grounding system of the building
What is one way to prevent electrostatic discharge when moving around in the work environment?
Stand or sit on an anti-static mat
What role does an anti-static pad play when working with electronic components?
Prevents electrostatic discharge
Why is it important to hold electronic components around the edges?
To avoid damaging sensitive parts
What temperature range is recommended for storing computers and devices?
50-80 degrees Fahrenheit
What is the purpose of using silica gel packs with components?
To act as a desiccant and absorb moisture
How can you protect components during shipment if you don't have the original box?
Combine bubble wrap and an anti-static bag
What should you never do when connecting yourself to a grounding system?
Connect yourself to the electrical grounding system of a building
What do silica gel packs do?
Absorb moisture from the air
Study Notes
- Static electricity is electricity that remains in one place and doesn't move until there's a discharge.
- Static electricity discharges, or ESD, can damage electronic equipment, causing visible damage as seen in the image.
- Touching a metal doorknob after shuffling feet on a carpeted floor results in a static electricity discharge of about 3,500 volts.
- Preventing ESD involves keeping humidity levels over 60%, but most work environments are not practical for this.
- To minimize ESD instances, touch a metal piece on the device you're working on or wear an anti-static strap.
- Using anti-static pads, mats, and bags can also help prevent ESD.
- When handling and transporting electronic components, hold them around the edges, store in a regulated environment, and use silica gel packs.
- Electrical safety when working with equipment includes ensuring power sources are removed before opening, avoiding touching components, and checking electrical grounds.
- Electrical grounding can protect against electrical faults, but connecting yourself to an electrical grounding system can be dangerous.
- Lifting heavy equipment requires proper lifting techniques, and safety goggles and masks may be necessary when working with small components or chemicals.
- Fire safety involves using carbon dioxide FM 200 chemicals or dry chemicals instead of water or foam and turning off power sources.
- Regulations may require the use of safety goggles, air masks, and adherence to fire protection and electrical codes.
Learn about static electricity discharge, such as the experience of touching a doorknob after shuffling on a carpet. Discover how static electricity stays in place until discharged and its impact on electronics.
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