Electrical Power Distribution System Checklist
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General System Overview & Documentation
Reviewing system documentation and assessing overall system health.
Describe the overall electrical power distribution system layout.
Date of Last System Design Review
Total System Capacity (kVA or kW)
System Voltage Level(s)
Upload Single Line Diagram
Document any known issues or limitations of the system.
Date of Last Comprehensive System Review
Type of System Architecture (e.g., Radial, Ring)
Main Incoming Service
Inspection of the main electrical service entrance and related equipment.
Main Service Voltage (V)
Main Service Amperage (A)
Main Meter Reading
Last Meter Reading Date
Service Entrance Condition (Visual)
Notes/Comments on Service Entrance Condition
Disconnect Switch Operability
Service Entrance Photo
Switchgear & Distribution Panels
Detailed examination of switchgear, distribution panels, and circuit breakers.
Panel Voltage (V)
Panel Ampacity (A)
Panel Condition (Visual)
Notes on Panel Appearance/Condition
Circuit Breaker Operation Test Result
Number of Breakers Tripped (if any)
Details of any Breaker Trips or Abnormalities
Last Maintenance Date
Busbar Condition
Transformers
Assessment of transformers, including visual inspection, oil level, and temperature.
Transformer KVA Rating
Input Voltage (Primary)
Output Voltage (Secondary)
Oil Level (inches from sight glass)
Oil Temperature (°C/°F)
Oil Condition (Visual Inspection)
Cooling Method
Any unusual noises or smells?
Date of Last Oil Analysis
Emergency Power System (EPS) / Generator
Verification of EPS functionality and generator performance (if applicable).
Generator Run Time (Hours)
Voltage Output (V)
Frequency Output (Hz)
Last Exercise Date
Exercise Start Time
Exercise Results/Observations
Fuel Level (Approximate)
Coolant Level
Generator Performance Report (if available)
Uninterruptible Power Supply (UPS)
Inspection and testing of UPS systems (if applicable).
UPS Input Voltage (VAC)
UPS Output Voltage (VAC)
UPS Capacity (kVA or kW)
UPS Load Percentage (%)
UPS Status (Online, Standby, Test, Fault)
Last Battery Replacement Date
Observations/Notes on UPS Performance
UPS Event Log (if available)
Battery Type
Grounding & Bonding
Verification of proper grounding and bonding throughout the electrical system.
Ground Resistance Measurement (Ohms)
Bonding Resistance Measurement (Ohms)
Grounding Electrode Type
Description of Grounding System Configuration
Visual Inspection of Grounding Connections
Areas Checked for Bonding
Last Grounding System Inspection Date
Wiring & Conduit
Visual inspection of wiring, conduit, and related supports.
Conduit Installation Condition Rating (1-5, 1=Poor, 5=Excellent)
Conduit Damage Observed?
If 'Other' damage selected above, please specify:
Number of Conduit Supports Securely Attached
Wiring Condition (Overall)
Wiring Degradation Observed?
If 'Other' degradation selected above, please specify:
Wire Identification (Color Coding) Consistency
Upload Photo(s) of Conduit/Wiring (if issues found)
Load Monitoring & Energy Management
Reviewing load monitoring data and energy management system performance.
Total Facility Power Consumption (kWh)
Peak Demand (kW)
Power Factor
Energy Management System (EMS) Status
Notes on Recent Energy Usage Trends
Last EMS Software Update Date
Energy Saving Initiatives Implemented?
Baseline Energy Consumption (kWh)
Safety & Compliance
Verification of safety measures and compliance with relevant codes and standards.
Last Safety Audit Date
Number of Safety Violations Found in Previous Inspection
Details of Any Safety Concerns Identified
Arc Flash Risk Assessment Up-to-Date?
Date of Last Arc Flash Study
Lockout/Tagout (LOTO) Procedures Reviewed?
Upload of Relevant Safety Certifications (e.g., NFPA 70E)
Compliance with Local Electrical Codes?
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