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The Power Quality Program is designed to promote maximum operating reliability for sensitive electronic equipment such as computer equipment, PC's, workstations LAN/WAN equipment/systems, POS, and telecommunication equipment while providing for a safe working environment.
There are many factors that determine how long the Power Quality Program will take to complete depending on the size of the facility, the scope of the work, and the program category selected. The Power Quality Program is divided into four phases. The first phase is the Power Quality Survey. The average survey can typically be completed in one day. Once completed, all the findings are documented in a report along with recommendations for any changes that may be required. The second phase is to either support, assist, or perform the changes that are required. The third phase is a reverification once the changes have been made. This is performed to insure that changes have been completed correctly and that no hidden deficiencies now surface due to the changes. The fourth phase is the monitoring period. This is where the site is monitored to insure that any operating performance problems that were identified have been corrected.
The Power Quality Survey is made up of four distinct services. These services are an electrical system evaluation, power quality monitoring, equipment installation examination, and an operating environment evaluation.
The electrical system evaluation encompasses inspecting and testing the electrical system. The electrical system evaluation begins at the electrical service entrance and continues on to the equipment receptacle. The inspection process examines the electrical system from the stand point of the National Electrical Code, industry electrical standards (e.g. Institute of Electrical and Electronics Engineers), personal safety requirements (e.g. OSHA), manufacturers procedures, and internal company practices. The testing process covers the earthing system, electrical service grounding and bonding methods, electrical system distribution, and receptacles. The electrical system evaluation provides the necessary information in determining if the electrical system can properly support the present and future sensitive electronic equipment loads.
Power quality monitoring is performed using a graphic power line data acquisition instrument for recording and analyzing electrical system operating information. Some of the information recorded covers voltage quality, harmonics, and electrical anomalies. This recorded information is used to determine if the quality of power supplied to the sensitive electronic equipment is within an acceptable range as compared to industry standards, manufacturers parameters, and internal company specifications.
The equipment installation examination focuses on the installation methods that were used for the sensitive electronic equipment along with the data cable management practices. The installation methods are examined and compared to industry standards, applicable codes, manufacturers procedures, and internal company practices. This step is to determine if operating performance of the sensitive electronic equipment is effected by the manner in which it was installed.
An operating environment evaluation examines temperature and humidity, Radio Frequency Interference (RFI), and Electromagnetic Interference (EMI), to name a few. This information is compared to industry standards, manufacturers parameters, and internal company specifications. This step is conducted because a poor environment can adversely effect the operating performance of sensitive electronic equipment.