Electrical Safety and Personal Protective Practices for A+
Short answer
Before working on powered equipment, instruct the technician to disconnect and unplug devices, and if necessary follow lockout/tagout procedures to ensure power cannot be restored inadvertently. Verify capacitors are discharged. Use grounding techniques for ESD (see esd1) separate from high-voltage safety. Wear PPE when there is a risk of debris, chemical exposure, or when working near potential arc or fire hazards. Use proper lifting posture and team lifts for heavy items.
Why it appears on the exam
- Recognition: identify proper PPE for a toner spill scenario. - Short choose the correct sequence to safely service a powered monitor. - Best-choice: select when to call facilities for suspected leaking battery versus continuing repair.
Key concepts
Concept 1
Required terms
Equipment grounding: A connection that provides a low-resistance path to earth to prevent buildup of dangerous voltages on equipment chassis. Personal protective equipment (PPE): Protective items such as safety goggles, gloves, and masks used to reduce personal injury risk during service tasks.
Example
Example 1: Unplugging a desktop and pressing the power button to discharge residual power before opening the case.
Concept 2
How Electrical Safety and Personal Protective Practices works
Before working on powered equipment, instruct the technician to disconnect and unplug devices, and if necessary follow lockout/tagout procedures to ensure power cannot be restored inadvertently. Verify capacitors are discharged. Use grounding techniques for ESD (see esd1) separate from high-voltage safety. Wear PPE when there is a risk of debris, chemical exposure, or when working near potential arc or fire hazards. Use proper lifting posture and team lifts for heavy items.
Example
Example 2: Wearing gloves and goggles while replacing a leaking laptop battery or dealing with toner spills.
Concept 3
Common confusion
- Confusing ESD grounding with electrical safety grounding: ESD straps ground static; electrical safety requires removing power and using certified safe procedures. - Assuming unplugging a power cord eliminates all risk: large capacitors can retain charge; verify and discharge when needed.
Example
Example 1: Unplugging a desktop and pressing the power button to discharge residual power before opening the case.
Concept 4
Core 2 (220-1202) question cues
Recognition: identify proper PPE for a toner spill scenario; Short choose the correct sequence to safely service a powered monitor; Best-choice: select when to call facilities for suspected leaking battery versus continuing repair.
Example
Example 2: Wearing gloves and goggles while replacing a leaking laptop battery or dealing with toner spills.
Sample questions
Select an answer to reveal the explanation. For tracked practice and weak-area review, use the Cultiv8 app.
Q1.An A+ support scenario describes this situation: Example 1: Unplugging a desktop and pressing the power button to discharge residual power before opening the case. Which answer fits best?
Q2.For this A+ objective, the scenario says: Example 2: Wearing gloves and goggles while replacing a leaking laptop battery or dealing with toner spills. What is the best match?
Q3.A support scenario about Electrical Safety and Personal Protective Practices feels similar to a nearby topic. What is the safest way to choose an answer?
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