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Difficulty: EasySafety Procedures and Environmental Controls

A technician is preparing an anti-static work area to safely perform internal maintenance on sensitive computer hardware. Place the following steps in the correct order from first to last to properly establish a grounded ESD-safe workstation.

  1. 1Clear the workbench of all non-essential items, especially static-generating materials like plastics, styrofoam, and paper.
  2. 2Unroll and lay the anti-static ESD mat flat across the clean work surface.
  3. 3Attach the grounding wire from the ESD mat to a verified electrical ground source or unpainted metal chassis ground.
  4. 4Wrap the ESD wrist strap snugly around your wrist, ensuring direct metal-to-skin contact.
  5. 5Connect the alligator clip of the wrist strap coiled cord to the grounded snap point on the ESD mat.

Answer

The correct procedural order is: first, clear the workbench of static-generating materials; second, lay the ESD mat flat across the work surface; third, attach the grounding wire from the ESD mat to a ground source; fourth, wrap the ESD wrist strap snugly around your wrist with skin contact; and fifth, connect the wrist strap clip to the grounded snap point on the ESD mat.
Establishing an anti-static workstation follows a logical sequence: first remove static generators (paper, plastics) from the surface; second, lay down the ESD mat; third, ground the mat to a known ground source; fourth, secure the ESD wrist strap against bare skin; fifth, attach the wrist strap lead to the grounded mat snap to equalize potential.

Step-by-Step Solution

1
Remove static-generating items from the workbench area.
The immediate work environment is free of ambient static hazards such as plastic wrappings or synthetic foam.
Eliminating static sources prevents accidental static discharge to components while setting up.
2
Position the ESD mat on the bench.
A dissipative work surface is established.
The mat serves as the central point for grounding both tools and personnel.
3
Connect the mat grounding wire to a verified ground.
The ESD mat is grounded and capable of safely draining electrostatic charges.
Un-grounded mats cannot dissipate static electricity to the earth.
4
Fasten the ESD wrist strap to your wrist with direct skin contact.
The personal body static protection interface is established.
Direct skin contact is required for electrical conductivity to drain body charge.
5
Clip the wrist strap cord to the grounded mat or equipment chassis ground snap.
The technician and mat share the same electrical potential grounded pathway.
Equipotential grounding prevents static potential differences between the technician and the hardware components.

Key Concept

ESD Safe Workstation Setup Procedures
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Topics

Safety Procedures and Environmental Controls

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