ISA90, Instrumentation and Computer Grounding

Scope

Provide guidance to those involved in the manufacture, design installation, and maintenance of instrumentation and process computer systems for the proper grounding of these systems.

The committee shall consider the total scope of instrument and computer grounding problems from the field transmitter to the process computer and all interconnecting wiring.

Instrument grounding in classified as well as unclassified locations will be included.

Protection against noise and other electrical unwanted electrical disturbances will also be a part of this recommended practice, as will analog and digital signal systems.

Coordination and compatibility with national and international standards and codes will be the committee's responsibility.

Purpose

To write standards or recommended practices that will establish criteria for the electrical grounding of instrumentation and process computer systems to meet the following objectives:

Minimize noise and electrical interference resulting from improper grounding practices.
Insure safety of I.S. and other instrument systems in classified locations by proper grounding.
Comply with the grounding requirements of the NEC and Canadian Electrical Code.
Provide grounding recommendations that are compatible with other power grounding criteria.

A Word from the Chairman

The ISA90 Committee is currently reassessing committee needs and membership. There is currently no work being done on a draft within this committee. For more information or if you would like to join ISA90, please contact ISA Staff, Eliana Brazda. The committee has no near future plans to meet; however, this site will be updated by the chairman or managing director as new information is available.

See all ISA90 Standards

Contacts:

William Aird Information Member	Eliana Brazda Staff Contact ISA Phone: (919) 990-9228 Fax: (919) 549-8288
Ronald Brown Information Member Phoenix Digital Corp Phone: (602) 483-7393	David Brown Voting Member Bechtel Corporation Phone: (713) 235-5103
Richard Buschart Voting Member	Andrew Engels Information Member Praxair Inc
Gurinder Garcha Voting Member GE Energy Phone: (518) 385-4101	James Gilsinn Managing Director Kenexis Consulting Phone: (614) 323-2254
Lawrence Goettsche Information Member	James Howell Information Member Alabama Power Co Phone: (205) 257-3369 Fax: (205) 257-1588
Thomas Key Information Member EPRI Phone: (615) 675-9505	Guilherme Lovisi Voting Member BAYER Technology Services Phone: +55 21 21890717 Fax: +55 21 27617791
Victor Maggioli Voting Member Feltronics Corp Phone: (302) 547-6870 Fax: (302) 737-5472	Trenton Martin Information Member Transocean Phone: (713) 232-7445
Horace Maxwell Information Member Bechtel Power Corp Phone: (301) 228-6919 Fax: (301) 682-7080	Gary Miller Information Member Edison Electric Institute Phone: (202) 508-5173 Fax: (202) 508-5225
Alejo Moreno Information Member IEI Ltd Phone: 562 2 04 1868 Fax: 562 2 09 0235	William Mostia Information Member SIS-Tech Solutions Phone: (281) 334-3169
Jim Ramlein Information Member MIS Labs Phone: (414) 262-8000 Fax: (414) 262-8005	Jerry Rockhold Information Member Phone: (206) 522-7186 Fax: (206) 517-8126
Raul Rodriguez Voting Member Avo Intl Phone: (214) 330-3541 Fax: (214) 339-7505	David Rundle Voting Member AMP Inc Phone: (717) 561-6275 Fax: (717) 561-6179
Zalo Shulimovitch Information Member Phone: 97248466038 Fax: 97248466767	Fredrick Smith Voting Member Westinghouse Savannah River Phone: (803) 557-2249
Malcom Thaden Information Member Potomac Elect Power Co Phone: (202) 872-2713	Robert Thomas Information Member CITGO Petroleum Corp Phone: (630) 257-4934
Ian Verhappen Information Member Industrial Automation Networks Inc Phone: (403) 829-1077	Terry Wilford Voting Member Renaissance Phone: (281) 754-4300 Fax: (281) 754-4332
Dennis Williams Information Member Celanese Phone: (361) 242-4350	Donald Zipse Information Member Zipse Electrical Engineering Phone: (610) 358-1462 Fax: (610) 793-1693