APC PMG4DS-A, PMP4DS-A, PMP3S-A, PMF3S-A System Grounding, Inadequate Raceway Electrical Continuity

Page 10

ELECTRICAL

SYSTEM GROUNDING

APC MODULAR PANEL PRODUCTS Surge Protective Device (SPD)

CAUTION

SYSTEM GROUNDING

·SPD must be installed on solidly grounded power systems.

·Verify that the service entrance equipment is bonded to ground in accordance with all applicable codes.

·Verify that the neutral terminals are grounded to system ground in accordance with all applicable codes.

Failure to follow these instructions can result in equipment damage.

An equipment ground conductor must be used on all electrical circuits connected to the SPD. For the best performance, use a single-point ground system where the service entrance grounding electrode system is connected to and bonded to all other available electrodes, building steel, metal water pipes, driven rods, etc. (for reference, see IEEE STD 142-1991). The ground impedance measurement of the electrical system should be as low as possible, and in compliance with all applicable codes, for electronics and computer systems.

When metallic raceway is used as an additional grounding conductor, an insulated grounding conductor should be run inside the raceway and sized in accordance with all applicable codes.

WARNING

INADEQUATE RACEWAY ELECTRICAL CONTINUITY

·Ground impedance must be as low as possible and in compliance with all applicable codes for electronic and computer systems.

·Install an insulated grounding conductor inside a metallic raceway when the raceway is used as an additional grounding conductor. Size the conductor in accordance with all applicable codes.

·Maintain adequate electrical continuity at all raceway connections.

·Do not use isolating bushings to interrupt a metallic raceway run.

·Do not use a separate isolated ground for the SPD.

·Verify proper equipment connections to the grounding system.

·Verify ground grid continuity by inspections and testing as part of a comprehensive electrical maintenance program.

Failure to follow these instructions can result in death or serious injury.

10

Page 9 Page 11
Image 10
Page 9 Page 11
Contents Surge Protective Devices SPD Loss of Branch Circuit Power and Surge Protection Hazard of Electric SHOCK, EXPLOSION, or ARC FlashLoss of Surge Protection This materialContents Introduction TestingIntroduction Packaging Unpacking Preliminary Inspection StorageIdentification Safety LabelsSPD Location Considerations Electrical Installation TorqueElectrical Voltage RatingUndersized Wiring USE only Conductors Rated 30 a or Greater Integral Switch Location of SPDSystem Grounding Inadequate Raceway Electrical ContinuitySpecial Enclosure Considerations InstallationInstallation Danger Patch Cables markedWiring Follow steps 1-5 to make wiring connectionsWiring Diagrams Without Integral Disconnect Single-Phase, 3-Wire, GroundedChasis Ground SPD Module LEDs Wye and Split Phase configurations OperationThree-Phase Display Panel with Surge Counter Dry Contact Configuration Maintenance Troubleshooting MaintenancePreventive Maintenance Troubleshooting Troubleshooting FlowchartsAPC Worldwide Customer Support Customer Support

PMP3DS-A, PMG3DS-A, PML3S-A, PMG4DS-A, PMF4S-A specifications

The APC PML3DS-A, PMP3S-A, PMP4S-A, PMG4S-A, and PMP4DS-A are part of a product line designed for power management and distribution in various applications, from data centers to industrial setups. Each model boasts unique features and technologies that cater to specific operational needs while prioritizing efficiency, reliability, and safety.

The APC PML3DS-A is a highly efficient power management solution suitable for small- to medium-sized enterprises. It features intelligent monitoring capabilities, allowing users to track power usage and optimize efficiency. The model integrates advanced surge protection technology, safeguarding equipment from voltage spikes. With a compact design, it offers flexibility in placement while still providing robust operational support.

The PMP3S-A model focuses on scalability, making it an excellent choice for businesses anticipating growth. This power management unit is compatible with multiple configurations, allowing seamless integration into existing systems. One of its standout features is the energy metering functionality, enabling precise tracking of energy consumption. This feature is invaluable for organizations seeking to reduce costs and improve sustainability initiatives.

Next in the lineup, the PMP4S-A offers enhanced power distribution capabilities, designed to handle higher loads. This unit is equipped with modular design elements, allowing for customization based on specific requirements. Additionally, it features real-time load balancing technology that ensures even distribution of power across connected devices, reducing the risk of overload and enhancing system stability.

The PMG4S-A stands out for its advanced management interface, providing users with a user-friendly experience. Its web-based management system allows remote monitoring and control, facilitating rapid response to any issues that arise. The PMG4S-A also includes built-in redundancy features, ensuring uninterrupted power supply and enhancing overall system resilience.

Lastly, the PMP4DS-A is engineered with advanced diagnostic capabilities, identifying potential issues before they can impact performance. This proactive approach to power management is crucial for maintaining operational integrity in critical systems. It also provides advanced communication options, integrating seamlessly with existing network infrastructure for improved management and reporting.

Together, these models from APC represent a comprehensive solution for power management, balancing performance, scalability, and safety across various applications. Their advanced features and technologies make them essential components for businesses looking to enhance their operational efficiency and reliability in power distribution.
Top Page Image Contents