Power protection for computers: Which option is specifically designed to clamp transient overvoltages and help prevent power surges from damaging equipment?
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ASurge suppressor
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BSpike protector
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CUPS system
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DHigh-grade multi-meter
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ENone of the above
Answer
Correct Answer: Surge suppressor
Explanation
Introduction / Context:Electrical surges and spikes can damage power supplies, storage, and logic boards. Different devices protect against different power problems; selecting the right one minimizes downtime and data loss.
Given Data / Assumptions:
- Concern is transient overvoltage (surges/spikes) on AC mains.
- Consumer/professional protective devices include surge suppressors and UPS units.
- Measurement tools (multimeters) do not provide protection.
Concept / Approach:
A surge suppressor (surge protector) uses components like MOVs (metal-oxide varistors) or TVS diodes to clamp high-voltage transients, diverting surge energy away from loads. It is the primary device for surge protection. UPS units may include surge suppression, but their core purpose is ride-through power during outages and brownouts.
Step-by-Step Solution:
Identify the hazard: short-duration overvoltage.Choose device intended to clamp overvoltage: surge suppressor.Optionally add UPS for backup power and line conditioning.Verification / Alternative check:
Spec sheets list joule rating and let-through voltage for surge strips. Higher joule ratings imply greater energy absorption. A UPS specification emphasizes VA/W capacity and battery runtime; surge ratings are secondary.
Why Other Options Are Wrong:
- Spike protector: Not a standard product term; if meant as a generic, it is redundant with surge suppressor. The precise term is surge suppressor.
- UPS system: Provides backup and regulation; not primarily a surge protective device.
- High-grade multi-meter: Measurement only; offers no protection.
- None of the above: Incorrect because surge suppressors directly address surges.
Common Pitfalls:
Confusing power conditioning with surge suppression; ignoring proper grounding; overloading multi-outlet strips beyond their rating.
Final Answer:
Surge suppressor