Neta standards free download

Acceptance Testing Specifications for Electric Power Distribution Equipment and Systems

These specifications have been developedThese specifications have been developed by the InterNational Electrical Testing Association for use by

electrical power distribution system engineers. Copyright InterNational Electrical Testing Association PO Box Stone Street Morrison, CO Fax: E-mail: neta@www.cronistalascolonias.com.ar Web site: www.cronistalascolonias.com.ar

NETA Standards Review Council These specifications were submitted for public comment and reviewed by the NETA Standards Review Council.

Charles K. Blizard Roderic L. Hageman

Diane W. Johnson Mary R. Jordan

Mark Lautenschlager Alan D. Peterson

NOTICEIn no event shall the InterNational Electrical Testing Association be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the use of these materials. This document is subject to periodic review, and users are cautioned to obtain the latest edition. Comments and suggestions are invited from all users for consideration by the Association in connection with such review. Any such suggestions will be fully reviewed by the Association after giving the commenter, upon request, a reasonable opportunity to be heard. This document should not be confused with federal, state, or municipal specifications or regulations, insurance requirements, or national safety codes. While the Association recommends reference to or use of this document by government agencies and others, use of this document is purely voluntary and not binding.

InterNational Electrical Testing Association PO Box Stone Street Morrison, CO FAX E-mail: neta@www.cronistalascolonias.com.ar Web Site: www.cronistalascolonias.com.ar Mary R. Jordan, EdD - Executive Director

PREFACE The purpose of these specifications is to assure that all tested electrical equipment and systems supplied by either contractor or owner are operational and within applicable standards and manufacturers tolerances and that equipment and systems are installed in accordance with design specifications. The need for acceptance testing of electrical power systems is very clear to those with extensive startup and/or operating experience. Shipping and installation damage, field and factory wiring errors, manufacturing defects, and systems and components not in accordance with drawings and specifications are some of the many problems that can be detected by appropriate testing. When these defects are found before startup they can be corrected under warranty and without the safety hazards and possible equipment and consequential damages of loss of use/production that can occur if discovered after startup or energizing. In addition, test results obtained during acceptance testing are invaluable as base reference data for the periodic testing that is an essential element of an effective maintenance program. It is the intent of this document to list a majority of the field tests available for assessing the suitability for service and reliability of the power distribution system. Certain tests have been assigned an optional classification. The following considerations were used in determining the use of the optional classification: 1. Did another test listed provide similar information? 2. How did the cost of the test compare to the cost of other tests providing similar information? 3. How commonplace was the test procedure? Is it new technology? While acknowledging the above, it is still necessary to make an informed judgment for each particular system regarding how extensive the testing should be. The approach taken in these specifications is to present a comprehensive series of tests that is applicable to most industrial and larger commercial systems. The guidance of an experienced testing professional should be sought when making decisions such as how extensive testing should be. In smaller systems some of the tests can be deleted. In other cases, a number of the tests indicated as optional should be performed. As a further note, it is important to follow the recommendations contained in the manufacturers instruction manuals. Many of the details of a complete and effective acceptance testing procedure can only be obtained from that source. The Association encourages comment from users of this document. Please contact the NETA office at or your local NETA member firm.

Alan D. Peterson NETA Technical Chair

ATS

CONTENTS

ELECTRICAL ACCEPTANCE TESTS 1. 2. 3. 4. 5. GENERAL SCOPE, ACCEPTANCE TESTING SPECIFICATIONS APPLICABLE REFERENCES QUALIFICATIONS OF TESTING ORGANIZATION AND PERSONNEL DIVISION OF RESPONSIBILITY GENERAL Safety and Precautions Suitability of Test Equipment Test Instrument Calibration Test Report 6. POWER SYSTEM STUDIES Short-Circuit and Coordination Studies Load Flow Studies - Reserved Stability Studies - Reserved Switching Transients Studies - Reserved Motor Starting Studies - Reserved Harmonic Analysis - Reserved Ground Mat Studies - Reserved Cable Ampacity Studies - Reserved Reliability Studies Reserved 7. INSPECTION AND TEST PROCEDURES Switchgear and Switchboard Assemblies Transformers 1. Dry-Type 1. Air-Cooled, Volt and Below - Small ( kVA Single-Phase, kVA Three-Phase, and Smaller) 2. Air-Cooled, All Above Volt and Volt and Below - Large (Greater than kVA Single-Phase and kVA Three-Phase) 2. Liquid-Filled Cables 1. Low-Voltage, Low-Energy - Reserved 2. Low-Voltage, Volt Maximum 3. Medium-Voltage, 69 kV Maximum 4. High-Voltage Metal-Enclosed Busways Switches 1. Air Switches 1. Low-Voltage 2. Medium-Voltage, Metal-Enclosed 3. High- and Medium-Voltage, Open 2. Oil Switches: Medium-Voltage 3. Vacuum Switches: Medium Voltage

ATS

SF6 Switches: Medium-Voltage - Reserved 5. Cutouts - Reserved Circuit Breakers 1. Low-Voltage 1. Insulated Case/Molded Case