Grade 11 ITC · Term 4 · Digital Security Textbook
Unit 4 · Health, Safety & Ergonomics · Chapter 24

Lab Hazards, Electrical and Fire Safety

Week 8 · Day 3 · Benchmark 11.4.2.4 Apply health, safety and ergonomic practices in ICT use
Essential question

What could go wrong in a computer lab, and what should we do about it?

Learning objectives
  • Identify common lab hazards
  • State electrical safety rules
  • Describe fire response steps in a lab

Overview

Computer labs are safer than workshops, but hazards still exist: overloaded sockets, trailing cables, spilt drinks, and electrical fires. A short checklist of habits keeps everyone safe.

Common Hazards

Trailing cables (trip), overloaded power strips (fire), drinks near equipment (short-circuit), damaged plugs, blocked exits.

Electrical Safety

One appliance per socket where possible. Never touch equipment with wet hands. Report damaged cables. Do not open computer cases.

Fire Response

Raise the alarm. Do NOT throw water on an electrical fire — use a CO2 or dry-powder extinguisher. Evacuate calmly to the assembly point.

Activity

Lab Safety Poster

  1. In pairs, draft a 'Computer Lab Safety Rules' poster with 6 rules and simple icons.
  2. Gallery walk — vote on the clearest poster.
  3. Display winning poster in the lab.
Review questions
  1. Which extinguisher is safe for electrical fires?
    Reveal answer

    CO2 (or dry powder) — never water.

  2. Give two common lab hazards.
    Reveal answer

    Trailing cables, overloaded sockets, drinks near equipment, damaged plugs.

  3. What is the first step when you spot a fire?
    Reveal answer

    Raise the alarm.

Take it home

Sketch the evacuation route from your lab to the assembly point.