Florida,USA. Jan 11, 2021. #1. I am trying to calculate the load on an existing two story mixed use building on a college campus. The first floor houses a commercial kitchen and dining room along with a bookstore. The second story is offices and large meeting rooms. Commercial electrical load calculation is vital to the running of an efficient and cost-effective business. Industrial power systems. Industrial electrical loads may be much more varied than domestic and commercial electrical loads. For example, in a factory, you would expect there to be many inductive loads to power machinery and specialised Electrical Load Calculation Worksheet City of Boulder City Community Development Department Building and Safety Division 401 California Avenue Boulder City, NV 89005 702-293-9282 (Main Line) 702-293-9392 (Fax) Author: Nancy Sommer Created Date: 3/17/2021 12:24:54 AM Title: Calculate the Total Service Load and Service Rating. Sup up the results from lines 7, 8, 9-16, and you will get the total service load in volt-amperes. Divide the result by 240 and write the total service load in the next line (in amperes). Enter the electrical service rating and compare it with the service load. It is intended to introduce the concepts of estimating building cooling and heating loads and is limited to introducing the components that make up the load on a building, the variables that affect each of these components, and simple meth ods used to estimate thes e load components. The way to complete the electrical load calculation sheet editable download form on the internet: To start the blank, utilize the Fill camp; Sign Online button or tick the preview image of the form. The advanced tools of the editor will guide you through the editable PDF template. Enter your official contact and identification details. NEC Standard Electrical Load Calculation for Single Family Dwellings (Only for Service Ratings of 120/240V, 225 Amps Max) Owner: Location: Total Floor Area of Dwelling (NEC 220.12) SQFT. Factor. Quantity Volt Amperes (VA) " General Lightin. g" Plus 65% of the Sum of the Calculated Load in the Next Unit W Electric space heating loads (as permitted in CEC Section 62) W First 10,000 Watts at 100% of electric base board heat (CEC Section 62) W The balance of the connected heating load at 75% (CEC Section 62) W Subtotal watts W **Total Watts W DWELLING UNIT ELECTRICAL LOAD CALCULATION* Permit Number Service Amperes Job Address Feeder Amperes Quantity Load Item Min. Rate (VA**) Column 1 (VA) Column 2 (VA) Dwelling Square Footage 3/sq.ft. Small Appl. (2 min) 1,500/ea. Electric-cook top(s) 5,100 Electric oven(s) 8,000 Dish Washer 1,200 Total connected load = 200kVA You calculate the first 200kVA at 80%. 200kVA × 0.80 = 160kVA Total demand load = 160kVA I = VA ÷ (E x 1.732) I = 160,000VA ÷ (208V x 1.732) I = 160,000VA ÷ 360V I = 444A To determine the ungrounded service conductor size, if installed parallel in two raceways: 444A ÷ 2 raceways = 222A Design organizations use normative specific load to calculate the power consumed by residential and public building. The practice of construction and operation of urban power supply systems has Other loads: (i.e.. pool pump, spa, welder) VA = VA (7) Add 20 Amps at 240 volts [SNA 220.5(C)]= VA = VA (8) Clark County Department Of Building SFR, Main Electrical Service/Sub Panel Calculation Worksheet 2008 NEC EFAGC 05.09 Standa