Owner's manual
Industrial Automation Wiring and Grounding Guidelines20
Publication
1770-4.1 – February 1998
• National Electrical Code (ANSI/NFPA 70) — Article 250 of
this code provides information about the types and sizes of
conductors and methods for safely grounding electrical
equipment and components. Articles 725-5, 725-15, 725-52, and
800-52 restrict the placement of different types of conductors in a
composite cable, a raceway, or a cable tray.
• IEEE Recommended Practice for Grounding of Industrial and
Commercial Power Systems (IEEE Std 142-1991)
• Grounding for the Control of EMI (by Hugh W. Denny —
publisher, Don White Consultants Inc., 1973)
• Electromagnetic Interference and Compatibility, Volume 3 (by
R.J. White — publisher, Don White Consultants, Inc., 1981)
• Military Handbook 419, “Grounding, Bonding, and Shielding for
Electronic Equipment and Facilities”
• IEEE Guide for the Installation of Electrical Equipment to
Minimize Electrical Noise Inputs to Controllers from External
Sources (IEEE Std 518-1982)
• IEEE Recommended Practice for Powering and Grounding
Sensitive Electronic Equipment (IEEE Std 1100-1992)
DH+,
and FLEX I/O are trademarks of Rockwell Automation.
ControlNet is a trademark of ControlNet International.
DevicNet is a trademark of Open DeviceNet V
endor Association.
Allen-Bradley, a Rockwell Automation Business, has been helping its customers improve pro-
ductivity
and quality for more than 90 years. W
e design, manufacture and support a broad range
of automation products worldwide. They include logic processors, power and motion control
devices, operator interfaces, sensors and a variety of software. Rockwell is one of the world’s
leading technology companies.
Worldwide representation.
Argentina
•
Australia
•
Austria
•
Bahrain
•
Belgium
•
Brazil
•
Bulgaria
•
Canada
•
Chile
•
China, PRC
•
Colombia
•
Costa Rica
•
Croatia
•
Cyprus
•
Czech Republic
•
Denmark
•
Ecuador
•
Egypt
•
El Salvador
•
Finland
•
France
•
Germany
•
Greece
•
Guatemala
•
Honduras
•
Hong Kong
•
Hungary
•
Iceland
•
India
•
Indonesia
•
Ireland
•
Israel
•
Italy
•
Jamaica
•
Japan
•
Jordan
•
Korea
•
Kuwait
•
Lebanon
•
Malaysia
•
Mexico
•
Netherlands
•
New
Zealand
•
Norway
•
Pakistan
•
Peru
•
Philippines
•
Poland
•
Portugal
•
Puerto
Rico
•
Qatar
•
Romania
•
Russia–CIS
•
Saudi Arabia
•
Singapore
•
Slovakia
•
Slovenia
•
South Africa, Republic
•
Spain
•
Sweden
•
Switzerland
•
T
aiwan
•
Thailand
•
Turkey
•
United Arab Emirates
•
United Kingdom
•
United States
•
Uruguay
•
V
enezuela
•
Y
ugoslavia
Allen-Bradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 Fax: (1) 414 382-4444
Publication
1770-4.1 – February 1998
Supersedes
Publication 1770-4.1 — November 1995
PN
9551
18-08B
Copyright
1998 Rockwell International Corporation Printed in USA