STANDARDS AND DESIGN CRITERIA
You will be able to document certain standards and design criteria that will be
used to solve line design calculations. This documentation will give your
utility one source to document design criteria identified from past utility
decisions, code and any local government requirements. Your utility can also
select National Electrical Safety Code clearance and strength factors that are
beyond minimum requirements. You will have the option to change any criteria
before performing a line design calculation. The following list identifies
information in the Standards and Design Criteria page.
System Design
Loading Zone
System Voltage (select up to three system voltage)
Design Tolerance
Cold Temperature for Uplift Analysis
Maximum Operating Temperature
Uniform Ice Thickness
Extreme Wind
Load Factors (Grade B, Grade C Crossing, Grade C Elsewhere)
Strength Factors (Grade B, Grade C)
Insulator Line Post Cantilever Strength
Aeolian Vibration (Low, Medium and High Probability Limits)
Allowable Voltage Drop
Pole Information
Minimum Pole Length
Maximum Pole Length
Highest Pole Class
Lowest Pole Class
Pole Species
Overhead and Underground Conductor
Primary and
Neutral Conductor Type (Select seven from a list of eighteen ACSR conductor
sizes)
Multiplex Conductor Type (Select ten from a list of fouteen multiplex
conductor sizes)
Underground Primary Cable (Select five from a list of
thrity-eight cables sizes)
Underground Secondary Cable (Select five from a list
of fourteen cables sizes)
Clearances
Vertical Clearance Over Ten Obstacle Types
Horizontal Clearance Along Four Obstacle Types
Assemblies and Guying
Pole Top
Assemblies (Identify twenty-one utility defined pole top assemblies)
Guy
Assemblies (Identify up to twenty guy and guy wire variations)
Minimum Guy Lead
Distance
Economics
Energy Charge
Demand Charge
Interest Rate
Depreciation
Rate
Tax and Insurance Factor
Carrying Charge Rate
System Losses Caused from Distribution Transformers
Transformer Losses and Purchase Cost (Up to thirteen transformer sizes)