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-
- |----------------------- ELECTRC5 -------------------------|
- | Copyright 1987,88 |
- | All Rights Reserved |
- |------------------------------------------------------------|
-
-
- SYSTEM REQUIREMENTS :
- MS/DOS OR PC/DOS Version 2 or higher
- 150k of free memory
- 1 disk drive
-
-
- Program Description :
-
- ELECTRC5 is designed to perform most common electrical contracting
- calculations such as :
-
- Power/voltage/current/resistance of resistive loads.
- Lighting fixture calculations based on zonal cavity method.
- Calculate voltage drop for various loads, voltages and run lengths.
- Calculate required wire size based on allowable voltage drops.
- Determine the cost to operate various loads at different kwh charges.
- Determine conduit size for combination of different wire sizes & types.
- Quick calculation of Device Box fill.
- Lookup of system grounding conductors.
- Equipment grounding conductor size table.
- Underground cover table.
- KW to ampere conversion tables.
-
- -----------------------------------------------------------------------------
-
-
- Changes from ELECTRC4 :
- 1. The Zonal Cavity Method of Lighting Calculation has been revised
- to allow "what if" calculations using different fixtures without
- having to re-enter all of the room data.
-
- 2. The Voltage Drop Calculator has been revised to accomidate
- larger current values and conductor sizes.
-
- 3. Addition of type THHN conductors in the Wire Selector.
-
- 3. Addition of a quick reference table of proper sizing of
- grounding electrode conductors, and also of equipment
- grounding conductors.
-
- 4. Addition of an underground cover requirement table.
-
- 5. Addition of Kw to Ampere conversion tables.
-
- ------------------------------------------------------------------------------
-
-
- Functions in ELECTRC5 :
-
-
- (A) Dc Power/Voltage/Current/Resistance :
-
- PURPOSE:
- Calculates values for two unknown values of power, voltage,
- current and resistance in DC circuits or in
- 100% power factor AC circuits.
-
- DESCRIPTION:
- This function uses Ohm's Law, which states that there is a relation-
- ship between voltage, current, resistance and power.
-
- Power = Current x Voltage
- Current = Voltage / Resistance
- Current = Power / Voltage
- Voltage = Current / Resistance
- Voltage = Power / Current
- Resistance = Voltage / Current
-
- If you want to solve for Power, Voltage, Current or Resistance, you
- only need to know 2 of the 4 values.
-
- USE:
- Enter the values for any two parameters and the results are calc-
- ulated for the other two.
-
-
-
- (B) Lighting Calculation ( Zonal Cavity Method )
-
- PURPOSE:
- Calculates the number of lighting fixtures required.
-
- DESCRIPTION:
- The Illuminating Engineering Society (IES) has devised a flexible
- and accurate method for calculating lighting requirements, called the
- ZONAL CAVITY METHOD.
-
-
- USE:
- ROOM LENGTH and ROOM WIDTH values must be entered in FEET.
- Decimal points are accepted (Ex. 125, 50.5, etc...)
- The Maximum acceptible value for each input is 1000.
-
- FIXTURE HEIGHT must also be entered in FEET.
- Decimal points are acceptable.
-
- After the above values have been entered, a second box will appear
- and internally calculated values will be displayed within the box.
-
- After all calculations and displays are completed in the second box,
- a third box will appear. You will be presented with a Fixture Type
- Menu. From here you can choose fixture types contained internally or
- you can choose to specify your own fixture. Fixture types stored
- internally include Recessed Incandescent, Fluorescent, and High
- Intensity Discharge. COEFFICIENT of UTILIZATION values which have
- been compiled by IES are stored internally for these fixtures.
- The internally stored fixtures are representitive of their types.
- You will get accurate results using them, but if you wish to
- use a type of fixture not available internally, you can choose to
- specify your own type. If you choose Specify, you will be prompted
- for the CU of your fixture. You will need to have the fixture
- manufacturer's CU specs. By looking at the values in the first two
- boxes you can select the correct CU for your fixture from the
- manufacturer's CU TABLE. Next you will be prompted for the number of
- LAMPS per fixture and for the LUMENS per lamp. LUMEN specs are
- available from various sources. Your electrical supply house generally
- has lamp catalogs from General Electric and other lamp manufacturers
- which will list LUMEN values for their line.
-
- After the fixture type (internal or specify) has been selected and
- the prompts have been answered, the program will calculate the
- required quantity of fixtures and display the result on screen.
-
- From here you can choose to perform another lighting calculation by
- pressing the ENTER key. Or you can escape to the Main Menu by
- pressing the ESC key.
-
-
- (C) Voltage Drop Calculator :
-
- PURPOSE :
- Calculates the voltage drop on single phase or polyphase AC circuits.
- Copper and aluminum conductors from #14 to 2000 mcm are supported.
-
-
- DESCRIPTION :
- The Voltage Drop Calculator asks whether or not the load is single
- phase, the length of the run, the source voltage, the load amperage,
- and the wire conductor size and material.
- The resultant calculation is based on the Ohms/mil/ft of the
- specified conductor size and material, together with the rest of
- the user inputted values.
-
- USE :
- At the prompt " Is load Single Phase ?", if you answer no it is
- assumed to be three phase.
- The RUN LENGTH is the length in feet from the final overcurrent
- device to the load terminals.
- The SOURCE VOLTAGE is the voltage measured at the final overcurrent
- device.
- The AMPERAGE is the current which would be used by the load if
- distance were not taken into account. For example, if the load is a
- resistance heater requiring 10 amps to operate as designed, then
- the AMPERAGE would be entered as 10.
- The WIRE SIZE is in the range of #14 awg to 2000 mcm. Do not include
- the # sign or the letters mcm. At the prompt, enter the numeric size
- of the wire (ex. 14, 1/0, 250, 750).
- The COPPER or ALUMINUM prompt is self explanatory.
-
- After entering the above values, the program will calculate and
- display on screen:
- 1. The VOLTAGE DROP of the circuit. (the number of volts dropped)
- 2. The VOLTS AT LOAD (the voltage delivered to the load terminals)
- 3. The % DROP (the percentage of the source voltage dropped)
-
-
-
- (D) Select Wire Size Based On Percent Voltage Drop :
-
- PURPOSE :
- Calculates the conductor size required to carry a certain load
- for some distance at a certain voltage while not exceeding a specific
- voltage drop percentage (types THW and THHN are supported).
-
-
- DESCRIPTION :
- This function asks for values of Maximum allowable voltage drop
- percentage, conductor material, load amperage, source voltage,
- circuit length and circuit type. It then calculates the minimum
- allowable conductor size required.
-
- USE :
- DESIRED % VOLTAGE DROP is the maximum allowable for that calculation.
- COPPER or ALUMINUM is self explanatory.
- AMPERAGE OF LOAD is the amperage required by the load.
- SOURCE VOLTAGE is the voltage measured at the final overcurrent device.
- LENGTH OF RUN is the distance in FEET from the final overcurrent
- device to the load terminals.
- The circuit type (single phase, 3 phase-3 wire, or 3 phase-4 wire)
- is whichever type is applicable to the particular circuit.
-
- After entering values for the above parameters, the program will
- calculate and display on screen, the correct conductor size required.
-
-
-
- (E) Calculate Cost To Operate Various Loads :
-
- PURPOSE :
- Calculates the cost to operate a certain load a number of hours daily
- for some number of days at a certain KWH utility charge.
-
- DESCRIPTION :
- Self explanatory.
-
- USE :
- POWER OF LOAD is the number of WATTS the load draws.
- DAILY USE is the number of HOURS the load is operated per day.
- NUMBER OF DAYS is the number of days the load is operated.
- PRICE / KWH is the utility charge per killowatt hour.
-
- After entering the above information, the program calculates and
- displays the dollar cost to operate the load for the number of
- hours daily for the number of days at the chosen utility charge.
-
-
-
-
- (F) Conduit Size Selector :
-
-
- PURPOSE :
- Calculates the trade size of conduit required for a group of conductors.
-
- DESCRIPTION :
- The Conduit Size Selector allows you to quickly and accurately
- determine the conduit size required for 1 or more conductors.
- Results are based on the 1988 National Electric Code.
- Calculations are based on the Dimensions and Percent Area of
- Conduit and Tubing from table 4 of the NEC. Maximum allowable
- percent conduit fill is 53% for 1 conductor, 31% for 2 conductors
- and 40% for more than 2 conductors, as per table 4. These percentages
- are built into the program's calculation procedure.
-
- USE :
- Move cursor block to the desired wire size/type position then enter
- the quantity of that size/type to include in the conduit.
- At this point you can press ENTER to record that entry or you can
- abort that entry by moving the cursor block with the direction keys.
- You can use the BACKSPACE key to edit the entry at any time.
- If you want to include other size/types of conductors into the same
- conduit, then repeat the above procedure. You can enter any combination
- of conductors in the same conduit.
- When you are finished entering, press the CONTROL and END keys
- together. The program will then list all the conductors you chose for
- the calculation then calculate the required trade size conduit required.
-
-
- (G) Device Box Fill Calculator :
-
- PURPOSE :
- Calculates the minimum size device box to be used.
-
- DESCRIPTION :
- Each conductor in a device box must have free air space around it.
- The Device Box Fill Calculator asks for the quantity and size of
- conductors and whether any clamps, devices, etc, are contained in
- the box. Based on this information, it calculates the total cubic
- inch capacity required, and chooses a box from each type (3x2, FS,
- 4" square, etc..) which can be used.
-
- USE :
- At the prompts, enter the quantity of the conductors.
- Pressing the ENTER key without first typing in a value inputs a
- quantity of 0 for that size. When prompted for the inclusion of
- any studs, clamps, devices, etc, enter a Y or N response.
-
- The program will then print to the screen the minimum size device
- box which may be used from each device box type.
-
-
-
- (H) System Grounding Electrode Conductor Table :
-
- PURPOSE :
- To determine the proper grounding electrode conductor size.
-
- DESCRIPTION :
- Table 250-94 from NEC
-
- USE :
- Self explanatory.
-
-
- (I) Equipment Ground Conductor Table :
-
- PURPOSE :
- To determine the required size equipment ground conductor.
-
- DESCRIPTION :
- Table 250-95 from NEC.
-
- USE :
- Self explanatory.
-
-
- (J) Underground Cover Table :
-
- PURPOSE :
- To determine the minimum cover requirements of underground cable,
- conduit, and other raceways.
-
- DESCRIPTION :
- Table 300-5 from NEC.
-
- USE :
- Self explanatory.
-
-
- (K) KW to Ampere Tables :
-
- PURPOSE :
- To quickly convert single and poly phase KW values to ampere values
- and vice versa.
-
- USE :
- Self explanatory.
-
-
- ==============================================================================
- ==============================================================================
-
-
- ---------- REGISTRATION AND UPGRADE --------
-
- If you are finding ELECTRC5 useful in your job planning and
- designing tasks, please take the time to support the many hours of designing,
- coding, debugging, testing and upgrading of this program. Your registration
- entitles you to an expanded version on disk.
- The expanded version, (ELECTRC6), includes all the functions of ELECTRC5,
- plus these additions:
-
- An expanded version of the Lighting Calculator which is 100%
- compatible with the Illuminating Engineering Society's Zonal
- Cavity Method of lighting calculation.
-
-
- A pipe and wire selector which will prompt you for the type, rating,
- length, desired maximum voltage drop, etc... , of any load circuit,
- then automatically calculate and report the required wire size and
- trade size conduit required (THW and THHN).
-
-
- A price comparator which uses the results of the pipe and wire
- selector calculations and displays the total cost of using THW
- and also THHN conductors. You select the desired type of raceway
- and the quantity of fittings, and costcomp searches data files
- for trade prices and calculates and displays the total costs.
- The data files are in ASCII format, and can easily be modified
- by you with any word processor to reflect your actual cost from
- your supply house. Costcomp currently supports E.M.T., Galvanized,
- and P.V.C. conduits and associated fittings and sweeps.
-
-
-
- ================================================================================
-
-
- Once again, thanks for using and supporting ELECTRC5.
- As always, any questions, comments and suggestion are welcome.
- Registration fee $35.00.
-
-
- Robert J. La Capra
- 50 Hillside Terrace
- Andover, NJ 07821
-
-