Electrical Resistance

Showing 18 of 18 articles in total.

The measure of a material's ability to conduct a charge to ground.

The time for the resistance measuring instrument to stabilize at the value of the upper resistance range verification fixture.

The rapid, spontaneous transfer of electrostatic charge induced by a high electrostatic field. Note: Usually, the charge flows through a spark between two bodies at different electrostatic potentials as they approach one another. Details of such processes, such as the rate of the charge transfer, are described in specific electrostatic discharge models.

The point, electrodes, bus bar, metal strips, or other system of conductors that form a path from a statically charged person or object to ground.

The ESD level that causes component failure.

The transmission of a rogue electrical signal, caused by ESD, and received by a computer or electrical device and has the potential to cause disruption and downtime. An example of EMI is the static interference you may hear over an automobile radio, caused by lightning, when you drive in the vicinity of an electrical storm.

Based in Rome, NY - Four thousand members representing the largest trade association for the ESD issues. The association assists in writing and setting industry standards and test methodologies and publishing the latest research and technology on ESD.

The abbreviation for electrostatic discharge. In layman’s terms: an electrical event that takes place when two conductors with different electrical potential make contact. ESD events occur when people walk across various forms of flooring and then they touch or approach computers and sensitive electronic devices. ESD should not be identified with shocks or zaps. Although shocks and zaps are ESD events, they are the result of at least three thousand five hundred (3500) volt discharges. An ESD event as low as 20 volts can disrupt electronic components. Because of this extremely low voltage, the event can go completely undetected.

Used to control the accumulation of electrostatic discharge on people, chairs and tables. A modular floor tile comprised of conductive carpet and a conductive thermoplastic backing. Usually manufactured using conductive fibers woven into the carpet face. A floor tile designed to provide an electrical path to ground for the dissipation of unwanted static electricity charges in applications where electronics are stored, manufactured, used or handled. An ESD grade flooring material will remain conductive at any relative humidity level. Not to be confused with computer grade or low Kv carpet materials.

(A static discharge or spark) ESD events range across a broad spectrum from microscopic discharges far below the threshold of human sensitivity to violent static shocks like the ones you may feel when you touch a metal door handle on a dry day. ESD events can cause damage to sensitive devices.

This is a catch-all term for any type of floorcovering with antistatic or conductive properties. This description is usually used during the investigation phase of static control flooring materials. Referring to a conductive or antistatic flooring material as an ESD floor is not a sufficient reference for defining certifiable electrical properties. The proper way to specify a flooring material used in sensitive electronic environment requires stating the resistance to ground which is measured in ohms.

A property of materials capable of one or more of the following: preventing the generation of static electricity, dissipating electrostatic charges over its surface or volume, or providing shielding from ESD or electrostatic fields.

The ESD Association Standard 7.1 - "Resistance Characteristics of Materials." A generally accepted test method used to determine conductivity of flooring and other material surfaces.

See electrostatic discharge sensitivity and electrostatic discharge susceptibility.

The maximum level that does not cause component failure.

Electrostatic Discharge Susceptible.

Stringent testing of a wrist strap to determine its electrical and mechanical performance abilities. Data are in the form of values from laboratory testing.

Any subfloor surface that has an extremely rough surface, such as concrete that has recently been shot-blasted (blastracked), any subflooring that has leftover residue of old latex adhesive, recently skimcoated, rough wood subflooring, etc. Such subfloor conditions can create bonding issues and lead to the necessity of using sealers or a greater amount of adhesive to properly adhere floorcoverings.