Newson Gale
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Glossary

TECHNICAL STANDARDS & GUIDELINES
ANSI Z41 SD Type II USA Standard for Industrial Safety Footwear incorporating Static Diissipative Properties.
API RP2003 American Petroleum Institute: Protection Against Ignitions Arising out of Static, Lighting, and Stray Current.
ATEX 137 European Directive covering work places with Potentially Explosive Atmospheres.
ATEX 95
European Directive covering equipment used in potentially explosive atmospheres.
BS5958 British Standard Code of practice for control of undesirable static electricity.
CLC/TR 50404 Cenelec Code of practice for the avoidance of hazards due to static electricity.
COMAH Regulations governing the storage of hazardous chemicals in the United Kingdom.
DSEAR Regulations governing the use of dangerous substances in the workplace.
EN ISO 20345 European footwear Standard incorporating details of anti-static footwear.
NFPA 77 Recommended practice on Static Electricity, published by National Fire Protection Association.

ELECTROSTATIC TERMINOLOGY

Anti-Static Incapable of retaining a significant electrostatic charge.
Bonding The process of connecting two or more conductive objects together by means of a conductor so that they are at the same electrical potential, but not necessarily at the same potential as the earth.
Bonding Reels (or static discharge reels) Used for connecting conductive objects to an earthing or grounding point.
Capacitance The amount of charge stored on a specified body or material to raise the potential difference by 1 volt.
Conductive The ability to allow the flow of an electric charge.
Conductor A material or object that allows an electric charge to flow easily through it.
Dissipative Footwear Footwear that ensures a person standing on a conductive or dissipative floor has an acceptably low resistance to earth (ground).
Earthing The process of bonding one or more conductive objects to the ground, so that all objects are at zero (0) electrical potential.  (also known as Grounding in the USA)
Earthing Systems With earth (ground) verification indicators often interlocked with the product transfer system.
Electrostatic Static electricity.
Earth Clamps Spring or screw down devices used to provide a secure earth (ground) connection.
Earth Indicators Control systems using explosion protection and intrinsically safe techniques to monitor acceptable resistance to earth (ground) and provide verification and interlocks.
Grounding American term used for "Earthing" as above.
Earthing & Bonding Combination of Earthing and Bonding techniques as defined above.
Earthing Devices Purpose designed equipment used for electrostatic earthing.
Leakage resistance The resistance (expressed in Ohms) between an object and the earth (ground).
Non-conductive The ability to resist the flow of an electric charge.
Non-conductor A material or object that resists the flow of an electric charge through it.
Retractable Bonding Cables Cables with an inherent capability to retract when not in use.
Retractable Earthing Assembly Used for connecting conductive objects to an earthing (grounding) point.
Self Testing Clamps Intrinsically Safe Bonding Clamps with ability to monitor resistance between conductive object and earth (ground) and provide verification of acceptable condition.
Static Dissipative Capable of dissipating a static electric charge at an acceptable rate.
Static Earth Monitoring The process of monitoring the resistance to earth (ground).
Static Earthing Clamps Special purpose clamps designed to enable temporary or semi-permanent connection onto movable conductive objects.
Static Earthing Reels Special purpose retractable cable reels with conductive cross-bonded components, designed to dissipate static electricty at an acceptable rate.
Static Earthing Systems Control systems using explosion protection and intrinsically safe techniques to monitor acceptable resistance to earth (ground) and provide verification and interlocks.
Static Discharge A release of static electricity that might be capable of causing ignition.
Static Electricity Denoting or pertaining to an electric charge that is at rest.
Static Grounding The process of bonding one or more conductive objects to the ground, so that all objects are at zero (0) electrical potential, to prevent static build up.
Static Ground Monitoring Alternative term for Static Earth Monitoring - as above.
Static Grounding Clamps Alternative term for Static Earthing Clamps - as above.
Static Grounding Reels Alternative term for Static Earthing Reels - as above.
Static Grounding Systems Alternative term for Static Earthing Systems - as above.
Static Protection Protection against the build up of static electricity.

HAZARDOUS AREA TERMINOLOGY

Combustible Capable of burning.
Explosion Protected Device enclosed in a housing that is capable of withstanding an explosion of a specified gas or vapor that may occur within it while preventing the propagation of flame to a surrounding flammable atmosphere.
FIBC / IBC Flexible Intermediate Bulk Container, or “Big Bag” used to transfer powders. The IBC is the rigid version, often made from stainless steel or plastic, in a variety of shapes and sizes.
FIBC (Type C) Special conductive FIBC for use with flammable powders.
Hazardous Areas
 Potentially flammable/explosive atmosphere.
Industrial Explosions Explosions in a work place environment.
Ingress Protection Ability of an enclosure to prevent the ingress of undesirable liquids or dust/powders.
Intrinsically Safe Electrical equipment and circuits incapable of generating energy sufficient to present a hazard in a flammable area.
Minimum Ignition Energy The minimum energy that can ignite a mixture of a specified flammable material with air or oxygen.  Often abbreviated as MIE.
Temperature Class (Europe) The hazardous materials are classed by their auto-ignition temperature and the T rating is the maximum surface temperature that the certified equipment can reach (measured at 40ºC ambient).
Temperature Class (USA) Note that Temperature Class sub-divisions are used in the USA.

AREA CLASSIFICATION
Area Classification A system to indicate the degree to which flammable/explosive atmospheres are present (i.e. continuously, intermittently, abnormally).
NEC 500 (USA): Division 1: Explosive atmosphere can exist all of the time or some of the time under normal operating conditions.
Division 2: Explosive atmospheres are not likely to exist under normal operating conditions.
Class I: Atmosphere with flammable gases, vapours or liquids.
Class II: Atmosphere with combustible dusts.
Class III: Atmosphere with ignitable fibers and flyings.
Cenelec/IEC (Europe): Zone 0: Gas/Vapour explosive atmospheres present continuously, for long periods or frequently.
Zone 20: Dust explosive atmospheres - as above.
Zone 1: Gas/Vapour explosive atmospheres are likely to occur in normal operation.
Zone 21: Dust explosive atmospheres - as above.
Zone 2: Gas/Vapour explosive atmospheres are unlikely to occur, or be present only infrequently or for a short period only.
Zone 22: Dust explosive atmsopheres - as above.

TRADE NAMES
Bond-Rite™ Instrinsically Safe Self-Testing Clamp (patented)
Cenelectrex® Brand name of Newson Gale range of Static Control Equipment for Hazardous Areas.
Cen-Stat™ Hytrel® coated cables with anti-static properties. (Hytrel® is a registered Trade Mark of DuPont)
Earth-Rite™ Range of Static Earthing (Grounding) interlock systems.
Retract-A-Clamp® Retractable coiled static earthing (grounding) and bonding assemblies. (Trade Mark of Stewart R Browne)
Sole-Mate® Test station for industrial static dissipative footwear.

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