Circuit & System Protection

Clearing the Static: ESD wrist straps

27 July 2022 Circuit & System Protection

The human body is the primary source of electrostatic charge generation. In order to control and reduce static charge build-up and prevent electrostatic discharges (ESD) at an electronic equipment facility, we use grounding systems to ensure that all components are at the same electrical potential.

Greg Barron, Actum Group director.

ESD wrist straps help to disperse static electricity generated from a person safely to ground. They are the most reliable method of grounding a person within the ESD Protected Area. According to European standards, every employee or operator within the ESD Protected Area needs to wear a wrist strap while seated. An ESD wrist strap set consists of a conductive wrist band and grounding cord that will effectively drain static charge away from the body so that it cannot discharge onto the object being worked on.

Types of Wrist Straps

Operators can opt for single-wire, dual-wire or disposable wrist straps, based on the application and requirement. Quality straps are manufactured from anti-allergenic materials, and designed with safety in mind. Specific types include:

• Adjustable elastic band: made from wide-knitted anti-stretch material.

• Thermoplastic wrist straps: lightweight, adjustable zipper-style design.

• Metal wrist straps: adjustable or fixed; very reliable and durable.

• Coil cords: available in black PVC and blue/yellow polyurethane.

To ensure your wrist strap is functioning optimally, daily testing should be conducted, and the results logged. As a standard, wrist straps need to maintain less than 100 V on the human body.

Actum Group is a specialised importer and distributor of industrial and electronic products in South and Southern Africa.


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Compact varistors offer surge capability of 6000 A
Electrocomp Circuit & System Protection
TDK has released the new EPCOS B72314S2* series of leaded disk varistors which cover a wide operating voltage range of 175 VRMS to 625 VRMS.

Actum Group leads in the interconnect industry
Actum Electronics News
Actum Group is a specialist importer and distributor of industrial and electronic products in Southern Africa and a leader in the interconnect industry.

Clearing the Static: ESD Flooring
Actum Group Circuit & System Protection
Altico’s ESD flooring has been specially engineered to facilitate a uniform flow of static electricity directly to a ground point.

Conduction-cooled electronics cases
Actum Electronics Enclosures, Racks, Cabinets & Panel Products
As electronics and processing systems become smaller and smaller, the need for versatile, compact form-factor cases that allow efficient heat dissipation increases. nVent Schroff offers customisable conduction-cooled ...

New transient voltage suppressors for automotive applications
EBV Electrolink Circuit & System Protection
The devices offer high surge capability of 3000 W and a high temperature operation up to 175°C for signal line protection.

Clearing the Static: Safe storage and transportation of ESD-sensitive components
Actum Group Circuit & System Protection
During storage and transportation outside of an ESD-protected area (EPA), it is recommended that ESD-sensitive items are enclosed in packaging that provides ESD shielding. In addition to effective static ...

Clearing the Static: Three steps to a dry ESD packaging system
Actum Group Circuit & System Protection
To protect PCBs from both ESD and moisture, they should be stored in a vacuum-sealed moisture barrier bag. To complete a dry-packaging system, desiccant packs and humidity indicator cards should be ...

Double-row, fine-pitch ERNI connectors
Actum Electronics Interconnection
As a distributor of ERNI, manufacturer of compact and robust SMD connectors, Actum Group announced the addition of the MicroCon series. These are miniaturised, double-row, fine-pitch connectors with a ...

High-power resistors
Actum Electronics Passive Components
Choosing the right resistor for an application is not simply a matter of calculating the correct value and tolerance for the most cost-effective solution. High-performance electronic resistors are demanding ...

Clearing the Static: Complete ESD solutions for EPAs
Actum Group Circuit & System Protection
An electrostatic protected area (EPA) is a designated area where static is controlled under strict regulations. At Actum Group, we advise that EPAs should be viewed and completed as a whole project and ...