Minimum Distribution System Concepts and Applications

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Weighted Linear Regression For <strong>Distribution</strong> Poles m = [ N× ∑nXY] − [ ∑nX× ∑nY] 2 [ N× nX ] − [ nX] 2 ∑ SLOPE ∑ N = Total feet of all poles of a given type, e.g., 55,642 ft of 40 ft wood poles n = Number of feet of a given size pole based on its GLMC, e.g., 21,137 ft of 76.80 kilopounds (kips) poles b y-INTERCEPT ⎡ ⎤ ∑nY ⎢∑nX = − m× ⎥ N ⎢ N ⎥ ⎣ ⎦ X = Ground Line Moment Capacity in kips, e.g., 48.0, 60.8, 76.8, 96.0, etc. Y = Pole unit cost in $ per feet, e.g., $12.05/ft (cost of a 76.8 kips pole) 42
Zero-Intercept Example Wood Poles 1. ZERO-INTERCEPT: $7.883/ft Based on various kip ratings of 40’ southern pine poles 2. TOTAL LINEAR FEET OF WOOD POLES: 5,579,390 ft CUSTOMER COMPONENT = $7.883 × 5,579,390 = $43,982,773 3. TOTAL WOOD POLE COST: $66,254,744 DEMAND COMPONENT = $66,254,744 - $43,982,773 = $22,271,971 CUSTOMER COMPONENT = 66.4% DEMAND COMPONENT = 33.6% 43
Page 1 and 2: MINIMUM DISTRIBUTION SYSTEM CONCEPT
Page 3 and 4: Basic Cost Components The classific
Page 5 and 6: The Access Function Of The Distribu
Page 7 and 8: Distribution System Lines and Facil
Page 9 and 10: Customer or Demand 9
Page 11 and 12: Customer or Demand 11
Page 13 and 14: Protection Scheme Permanent Fault C
Page 15 and 16: Customer or Demand
Page 17 and 18: Zero-Intercept Methodology Applied
Page 19 and 20: Weighted Linear Regression For Dist
Page 21 and 22: Zero-Intercept Analysis The Problem
Page 23 and 24: Primary and Secondary Conductors an
Page 25 and 26: Weighted Linear Regression For Dist
Page 27 and 28: Determination Of Overhead Circuit L
Page 29 and 30: CONDUIT FOR UNDERGROUND CABLES RIGI
Page 31 and 32: Pole Heights Relative Frequency Dis
Page 33 and 34: Clearance Requirements Poles lines
Page 35 and 36: Distribution Pole Classification Co
Page 37 and 38: Standard Pole Classes Example: 35
Page 39 and 40: Pole Class Requirements Based On Tr
Page 41: Pole Capacity Poles have no electri
Page 45 and 46: Example MDS Analysis Results Distri

Minimum Distribution System Concepts and Applications

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