Electrical Load Analysis
Comprehensive technical specifications for appliance power consumption and load calculation.
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Power Calculations
- Real Power: P = V × I × PF
- Apparent Power: S = V × I
- Reactive Power: Q = S × sin(φ)
- Energy (kWh) = P × t/1000
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Load Characteristics
- Power Factor: 0.65-0.95
- Inrush Current: 3-6× FLA
- Duty Cycle: 30-70%
- Load Factor: 0.4-0.8
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Circuit Requirements
- Voltage Drop: ≤3% branch
- Circuit Loading: 80% max
- OCPD Sizing: 125% FLA
- Ground: ≤0.25Ω path
Efficiency Standards
Energy efficiency requirements and performance metrics:
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Energy Star Ratings
- Refrigerator: 350-780 kWh/yr
- Dishwasher: 270 kWh/yr
- Washer: 125 kWh/yr
- HVAC: 16+ SEER
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Standby Power
- TV/Monitor: ≤0.5W
- Microwave: ≤2W
- Computer: ≤1W sleep
- Audio: ≤0.5W standby
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Performance Metrics
- EER: 11.0+ cooling
- COP: 3.0+ heat pump
- MEF: 2.0+ washers
- Annual Operating Cost
Installation Guidelines
Technical requirements for safe and efficient operation:
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Electrical Safety
- GFCI: 4-6mA trip
- AFCI: Class 2 protection
- Isolation: 1000V minimum
- Grounding: ≤25Ω electrode
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Ventilation Requirements
- Clearance: 3-6" minimum
- Airflow: 50-100 CFM
- Heat Dissipation: 3.41 BTU/W
- Ambient Temp: 50-95°F
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Load Management
- Demand Factor: 0.6-0.8
- Diversity Factor: 0.5-0.7
- Peak Shaving: 10-15%
- Harmonic THD: ≤5%