General Electronics Safety
This protective gear should always be worn when working with electronics, especially when soldering
What are safety goggles?
The temperature of a soldering iron tip can reach up to 400°C (750°F). You should never touch this part of the iron
The element or tip
Coming into direct contact with an electrical current can lead to this, ranging from a slight shock to cardiac arrest
Electric shock
In the event of an electrical emergency, you should know how to turn off the power to a specific circuit and to this
The whole house
These chemical-resistant gloves should be worn when handling etching chemicals like ferric chloride
Nitrile gloves
This electrical phenomenon can damage sensitive components and even start fires
What is electrostatic discharge (ESD)?
This piece of safety equipment should always be worn when soldering to protect your eyes from splashes of hot solder or flying debris
Safety goggles
This type of damage occurs when a wire's insulation deteriorates, exposing the live wire
Damaged insulation
If someone is touching a live wire, the first step in rescuing them is to do this
Turn off the power at the source
This common household product can be used to neutralize spills of acidic etching chemicals
Baking soda
Before handling components, you should do this to discharge static electricity
What is touching a piece of metal?
This action helps prevent inhalation of harmful fumes produced during soldering
Working in a well-ventilated area
Using damaged electrical equipment or plugging in too many devices can lead to this dangerous situation
Overloaded circuits
This is the immediate action you should take if you or someone else receives an electrical shock
Immediately cool the affected area under cold water for 15 minutes
Etching chemicals can release harmful fumes, so it's important to work in this kind of area
A well-ventilated area, such as under a fume hood or outdoors
To prevent ESD damage, you should do this to yourself before handling sensitive electronic components
Ground yourself (by touching a metal object)
To avoid accidentally starting a fire, you should always return the soldering iron to this when not in use
Its stand
In an accident, if you suspect a utility wire is on a car, you should describe how to do this to safely exit the vehicle
Safely get out of a car in an accident if you suspect a utility wire is on the car
You should know how to render this to a person who is unconscious from an apparent electrical shock
First aid
You should never dispose of used etching chemicals in this way
Pouring them down the drain
Using excessive force when inserting components can lead to this type of damage
Component breakage or bending wires too tightly
What are the specific hazards associated with solder dross and waste disposal?
Lead-containing waste is considered hazardous and must be disposed of properly in sealed containers.
Improper disposal can contaminate the environment and expose individuals to harmful substances.
What is the overlooked in the common belief relating to wire colors, being black (hot), white (neutral), and green (ground)
Wire colors can vary based on regional or international standards
You discover an unknown liquid seeping from a battery in an electronic device, and the device is hot to the touch and showing signs of swelling. What is your immediate course of action?
- Do not touch the device directly or attempt to handle the leaking substance
- Evacuate the area immediately to a safe distance
- Notify emergency services or the designated safety personnel of the situation, specifying a potential lithium battery hazard
- Do not try to cool the device with water, as this can worsen the situation
- Follow the instructions of the emergency responders
What are the dangers of an "acid trap" in a PCB design
Acid traps are acute angles in a circuit layout that can trap etching solution, leading to prolonged exposure and potential damage or etching away of traces, compromising connections and making the trace defective