5044 B U Bowman Dr #102  :::  Buford, Georgia  30518

e-mail stedipower@tvss.net   :::  Phone: 678.546.6780

 

How to Install a Three-Phase Surge Suppressor in accordance with National Electrical Code Article 285 (Surge Suppressors)

IMPORTANT!  IMPROPER SPECIFICATION OR INSTALLATION OF A SUPPRESSION SYSTEM MAY SEVERELY RESTRICT THE CAPABILITIES OF  YOUR SYSTEM AND WILL ADVERSELY AFFECT ALL BENEFICIAL ASPECTS OF YOUR INSTALLATION.

Select your Configuration from the choices below:



 note: See your Installation Instructions                         
for wire color coding                   		3 Phase "WYE" Configuration

  1. The goal is to install equipment at a point that allows the shortest possible wiring without sharp bends or kinks.  Preferably, the combination of the neutral wire and the longest of the powered conductors will be less than 12 inches (approximately 30cm).

  2. The ground wire does not need to be extremely short but no wires may be spliced or extended.

    Please see: remote configuration.

  1. Check all voltages with a true RMS measuring meter.  Do not rely on "wire counting" to determine what type of service is installed.  As final confirmation, transformers should be checked for nameplate configuration information.

3-Phase Corner Ground Configuration

  1. The goal is to install equipment at a point that allows the shortest possible wiring without sharp bends or kinks.  Preferably, the combination of the neutral wire and the longest of the powered conductors will be less than 12 inches (approximately 30cm).

  2. The ground wire does not need to be extremely short but no wires may be spliced or extended.

    Please see: remote configuration.

note: See your Installation Instructions                         
for wire color coding                   

  1. Check all voltages with a true RMS measuring meter.  Do not rely on "wire counting" to determine what type of service is installed.  As final confirmation, transformers should be checked for nameplate configuration information.



 note: See your Installation Instructions                         
for wire color coding                   		3 Phase "DELTA" Configuration
 (Sometimes called "Stinger" or "High-Leg Delta")

  1. The "High Leg" should be marked with either an orange wire or an orange marking on the power conductor.  The corresponding orange wire on the suppressor/arrester is attached at this point.

  2. The goal is to install equipment at a point that allows the shortest possible wiring without sharp bends or kinks.  Preferably, the combination of the neutral wire and the longest of the powered conductors will be less than 12 inches (approximately 30cm).

  1. The ground wire does not need to be extremely short but no wires may be spliced or extended.

    Please see: remote configuration
  2. Check all voltages with a true RMS measuring meter.  Do not rely on "wire counting" to determine what type of service is installed.  As final confirmation, transformers should be checked for nameplate configuration information.

    The electronic systems used today require the best power conditioning available.  This requirement becomes even more critical in older facilities whose "contents" may have changed without changing their structure or electrical supply.

    The first step in decreasing your downtime and making your equipment last longer than you thought possible is within your grasp.  Contact us at for more information, or if you have specific questions, feel free to contact our engineering staff at . 

    We look forward to fulfilling your needs and will supply all a ssistance possible.

 

PHONE:   (678) 546-6780      FAX:   (678) 546-6782

Technical Support
tech@tvss.net 

Stedi-Power, Inc.
5044 B U Bowman Drive,
Suite 102
Buford GA 30518

General Inquiries
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Stedi-Power, Inc
5044 B U Bowman Drive #102
Buford, Georgia 30518
PHONE: (678) 546-6780

Last Updated: 07 Jun 2004
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