PRELIMINARY ELECTRICAL DESIGN CONSIDERATIONS
CONTENTS
Page
1.1
Scope ..................................................1
1.2
Cancellation ...........................................1
1.3
Related Criteria .......................................1
1.4
Other Government Criteria Sources ......................1
1.5
Other Sources of Criteria ..............................1
1.6
Load Data ..............................................2
1.7
Load Analysis ..........................................2
1.8
Terminology ............................................2
1.8.1
Demand Factor ..........................................2
1.8.2
Coincidence Factor .....................................2
1.8.3
Diversity Factor .......................................2
1.8.4
Load Factor ............................................2
1.8.5
Maximum Demand .........................................2
2.1
Preparation of Load Data ...............................3
2.2
Individual Loads .......................................3
2.2.1
Lighting ...............................................3
2.2.1.1
Small Appliance Loads ..................................3
2.2.1.2
Electric Power Loads ...................................3
2.2.1.3
System Loss ............................................3
2.2.2
Demand and Load Factors ...............................10
2.2.2.1
Guides for Demand Factors .............................10
2.2.2.2
Guides for Load Factors ...............................10
2.2.3
Load Growth ...........................................10
2.2.4
Emergency Loads .......................................17
2.3
Area Loads ............................................17
2.3.1
General Loads .........................................17
2.3.2
Coincidence Factor ....................................17
2.3.2.1
Relationships .........................................17
2.3.2.2
Selection .............................................17
2.3.2.3
Electric Power Consumption ............................17
2.3.2.4
Influencing Factors ...................................23
2.3.2.5
Individual Loads ......................................23
2.3.2.6
Groups of Loads or Areas ..............................23
2.3.3
Load Growth ...........................................23
2.3.4
System Losses .........................................23
2.3.5
Emergency Loads .......................................24
2.3.6
Expansion .............................................24
2.4
Activity Loads ........................................24
2.4.1
General Loads .........................................24
2.4.2
Coincidence Factor ....................................24
2.4.3
Load Growth ...........................................24
2.4.4
Expansion .............................................24
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