Demonstrate Proper Use of an Antistatic Wrist Strap

Last Updated on Mon, 16 Jan 2023 | Operating Systems

As discussed previously, an example of ESD is the small shock that someone receives when you walk across a carpeted room and touch a doorknob. Although the small shock is harm less to you, the same electrical charge passing from you to a computer can damage its components. Wearing an antistatic wrist strap can prevent ESD damage to computer components.

The purpose of an antistatic wrist strap is to equalize the electrical charge between you and the equipment. The antistatic wrist strap is a conductor that connects your body to the equipment that you are working on. When static electricity builds in your body, the connection made by the wrist strap to the equipment, or ground, channels the electricity through the wire that connects the strap.

As shown in Figure 2-8, the wrist strap has two parts and is easy to wear:

1. Wrap the strap around your wrist and secure it using the snap or Velcro. The metal on the back of the wrist strap must remain in contact with the skin at all times.

2. Snap the connector on the end of the wire to the wrist strap and connect the other end either to the equipment or to the same grounding point that the antistatic mat is connected to. The metal skeleton of the case is a good place to connect the wire. When connecting the wire to equipment you are working on, choose an unpainted metal surface. A painted surface does not conduct the electricity as well as unpainted metal.

Figure 2-8 Antistatic Wrist Strap

Note

Attach the wire on the same side of the equipment as the arm that is wearing the antistatic wrist strap. This will help to keep the wire out of the way while you are working.

Note

Attach the wire on the same side of the equipment as the arm that is wearing the antistatic wrist strap. This will help to keep the wire out of the way while you are working.

Although wearing a wrist strap will help to prevent ESD, you can further reduce the risks by not wearing clothing made of silk, polyester, or wool. These fabrics are more likely to generate a static charge.

Note

Technicians should roll up their sleeves and tuck in their shirts to prevent interference from clothes. Also, ensure that earrings, necklaces, and other loose jewelry are properly secured.

Caution

Never wear an antistatic wrist strap if you are repairing a monitor or CRT.

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Readers' Questions

  • Eglantine
    Where should you clip your esd strap when opening a computer case?
    2 months ago
    • When opening a computer case, you should clip your ESD strap to an unpainted metal surface on the computer case itself. This helps to ground the ESD strap and prevent electromagnetic interference.
    • kaarle
      Are anti static wrist straps necessary?
      2 months ago
      • No, anti static wrist straps are not necessary for most computer users and other electronic devices. However, for people who work with sensitive electronic equipment and machinery, an anti static wrist strap can help prevent the accumulation of static electricity. This is because static electricity can disrupt the proper functioning of these sensitive devices and cause damage to their components.
      • Wiktor
        How to prevent static electricity while working on computer?
        2 months ago
        1. Wear non-synthetic clothing and avoid materials such as wool, nylon, and polyester.
        2. Use an anti-static wrist band or mat when working on the computer.
        3. Keep the air humidified with an air humidifier.
        4. Clean dust and dirt from your computer on a regular basis.
        5. Avoid rubbing your feet on the carpet.
        6. Avoid touching metal objects while working on the computer.
        7. Don’t use a vacuum cleaner near the computer.
        8. If possible, ground the computer with an anti-static grounding cable.
        9. Keep nearby objects away from the computer and its peripherals.
        • layla
          Why would a person who handles electronic components wear a grounded wrist strap?
          2 months ago
          • A grounded wrist strap helps prevent static electricity from damaging sensitive electronic components. Static electricity can build up from friction between clothes and skin, and can travel through a person to the components they are handling. A grounded wrist strap helps divert this static electricity away from the components.
          • Lee
            When should you not wear a wrist band ground strap?
            2 months ago
            • You should not wear a wrist band ground strap if you are wearing any metal jewelry such as rings or bracelets. Additionally, any fabric or material that has metal components in it such as a watch band should also not be worn with a wrist band ground strap.
            • ilkka
              How does an anti static wristband work?
              2 months ago
              • An anti-static wristband is a device used to safely ground a person working on sensitive electronic equipment, such as in a production or cleanroom environment. It is designed to help prevent the buildup of static electricity in the body. The band typically has one end that attaches to the user’s wrist and the other end to an appropriate grounding source. This allows electricity to be conducted away from the user and safely discharged.
              • IRENE
                How do anti static bracelets work?
                2 months ago
                • Anti-static bracelets work by providing a low-resistance path to ground for the static electricity built up on a person’s body. The bracelet is typically equipped with a one-megohm resistor, designed to slowly bleed away any static charge you acquire, which is necessary when handling sensitive electronic components. The bracelet is connected to a ground source, typically provided by an anti-static wrist strap, which is connected to a grounding source such as a wall outlet. This connection helps to disperse static electricity from the person’s body and prevent damage to sensitive electronic components.
                • vesa
                  Where to clip anti static wrist strap?
                  2 months ago
                  • An anti-static wrist strap should be clipped to the metal part of an electronic device, such as the chassis of a computer, monitor, or the metal enclosure of a printer. If the electronic device does not have any metal parts, then the wrist strap should be clipped to an unpainted metal part of a non-electronic object such as a desk or workbench.
                  • June
                    Where to attach anti static wrist strap?
                    2 months ago
                    • The anti-static wrist strap should be attached to an unpainted surface of a grounded piece of equipment. This can be a metal part of a computer case or the back of a monitor. Alternatively, the strap can be connected to any grounded source, such as an electrical outlet, to ensure a safe static-free environment.
                    • Daniel
                      Where to connect anti static wrist strap?
                      2 months ago
                      • Antistatic wrist straps should be connected to a ground source, such as a metal water pipe, a grounded outlet, or a grounding mat.
                      • nadia
                        How to use anti static bracelet?
                        2 months ago
                        1. Place the anti-static bracelet around your wrist. It should fit snugly, but not so tight that it's uncomfortable.
                        2. Connect the alligator clip to the metal part of your clothing or the non-painted part of an electronic component.
                        3. When handling sensitive electronics and components, the metal bracelet should remain connected to ground the static electricity away from your body and the sensitive components.
                        4. When no longer handling the components, disconnect the clip from the metal part of your clothing or electronics.
                        • elisa
                          Why should you wear an antistatic wrist strap?
                          2 months ago
                          • An antistatic wrist strap is worn to prevent static electricity from damaging sensitive electronic components. Static electricity can be generated by frictional contact between two surfaces, particularly when one of the surfaces is a human body. Whenever handling sensitive electronic components, it is important to wear an antistatic wrist strap to prevent electrostatic discharges that could potentially damage these components.
                          • garry
                            Why should an antistatic wrist strap be worn when working on electronic equipment?
                            2 months ago
                            • An antistatic wrist strap is worn when working on electronic equipment to reduce the likelihood of static electricity being discharged into the equipment, which could cause damage to delicate electrical components. Static electricity is created when two materials come into contact with each other, and it can accumulate on the body and be discharged when touching an electronic component. Wearing an antistatic wrist strap prevents static electricity from accumulating on the body and keeps it grounded, which protects the electronic components.
                            • Fethawi
                              Which statement describes the proper use of an antistatic wrist strap?
                              5 months ago
                              • An antistatic wrist strap should be worn on the wrist and connected to a grounded object, to prevent electrostatic discharge (ESD) from affecting computer components.
                              • saradoc
                                What is the l purpose of an antistatic wrist strap?
                                1 year ago
                                • An antistatic wrist strap is a safety device used to prevent electrostatic discharge (ESD) by connecting a person to ground. It is worn around the wrist and has a metal clip or cord that attaches to a ground source such as an exposed metal part of a workbench, computer chassis, or other ground point. This helps to protect sensitive computer components from being damaged by static electricity.
                                • caleb
                                  How to demonstrate proper use of portable wrist strap on a/c?
                                  1 year ago
                                  1. Start by attaching the portable wrist strap to your wrist. Make sure it is securely fastened around the wrist with no slack.
                                  2. Plug the other end of the strap into the ground connector port of the air conditioner. This port is usually located on the back of the unit.
                                  3. When handling the air conditioner, keep your wrist strapped to the unit to ensure a proper ground connection. This will help to prevent static electricity from building up.
                                  4. When finished, unplug the strap from the unit before removing it from your wrist. This will help prevent any potential shocks.