ELECTRICAL DESIGN GUIDELINE STEPS Maria C. Gonzalez.

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Presentation transcript:

ELECTRICAL DESIGN GUIDELINE STEPS Maria C. Gonzalez

ELECTRICAL DESIGN STEPS 1.What equipment do you want to install? 2. How do we install it? –Power requirements: conductor size –Communications requirements 3. Cost

ELECTRICAL EQUIPMENT

ELECTRICAL PLAN

POWER REQUIREMENTS STEPS: 1. Find the total load in Watts for the electrical equipment you want to install. 2. Calculate the current 3. Calculate the conductor size

POWER REQUIREMENTS CALCULATIONS: 1. Total Wattage 2. Calculate the current knowing the total wattage W:

CONDUCTOR SIZE Using Ohm’s Law, find R Resistance per unit length  km = voltage drop is 5% of 120V or 6 v D; distance in Km from PG&E pole to service cabinet

CONDUCTOR SIZE TABLE

ELECTRICAL ELEMENTS 1 POWER AND COST

ELECTRICAL ELEMENTS 1 Communications

ELECTRICAL ELEMENTS 2 POWER AND COST

ELECTRICAL ELEMENTS 2 Communications

ADDITIONAL ELECTRICAL ELEMENTS COST

COMMUNICATIONS APPLICATION BANDWITH REQUIREMENTS

COMMUNICATIONS TECHNOLOGY BANDWIDTH