Jan 18, 2019 download free excel program for cable sizing calculation. In the following example, the length is calculated as 12 11 764. Guy wire calculator is the newest entry in wirelessestimators suite of etools trying to identify the various components and wire lengths in a guy wire system can oftentimes be a. Cable size calculator developed by power plus cable co. This program has been derived from a public domain basic program written by l. Download free excel program for cable sizing calculation.
Specific resistance or resistivity of conductor is used here for copper and aluminum is 11. Wire gauge size and resistance calculator inch calculator. Its recommended to check the ampacity of a wire after doing a voltage drop calculation. The full drum capacity is calculated below using the formula below. An212 application note 12 volt wire length calculator quick overview as electric current flows through wire, there is a loss in voltage. Advantages of this system include the ability to readily calculate the physical dimensions or weight of wire, ability to take account of noncircular. Wire size calculator ad free is a tool and not responsible for its misuse. The antenna calculator above uses this formula as a starting point to calculate wire lengths for the dipole.
This final calculator can be useful if you are using a. Wire diameter in or mm number of turns turns bobbin length in or mm bobbin diameter in or mm d rated current optional, for force calc i gap distance between solenoid and metal optional, for force calc in or mm g results. Circuit distance calculator online wire size calculators. The circuit distance calculator calculates the maximum circuit distance based on the maximum percent voltage drop.
Click here for wire weight calculator it will open in new window weight of g. This app does nothing more than the standard 468freq mhz type calculations. Use this online nichrome wire calculator to calculate resistance, power, current and voltage of the nichrome coil by just providing the length, thickness and temperature of the nicr. The currents can get high and any voltage drop becomes significant.
Wl wire length r resistance lc load current sv source voltage. The distance between the receptacle and the panel along the x axis is 10. If you make it the right length, then it will present a good match to your feedline, but if you have a tuner, and either place it near the antenna or use a lowloss feedline, then that doesnt matter. This is a simple calculator for determining approximate wire gagesize based on the length of the wire in feet and the current in amps in general automotive applications. Feb 10, 2019 download free excel program for cable sizing calculation. If you use a 2 wire measurement the calculator assumes you have 0. Enter the information below to calculate the appropriate wire size. The results of this calculator are based on conductor temperatures of. If you use a 2wire measurement the calculator assumes you have 0. However, when i use sterling silver wire or goldfilled wire, this question is important. Nichrome wire can be used as an alternative for platinum wire in flame testing. Download hf dipole calculator 12 wave wire dipole antenna.
It was written for dos many years ago and ported to win32. The spreadsheet calculates cable size according to length, amperage, temperature. This is a calculator for the estimation of the voltage drop of an electrical circuit based on the wire size, distance, and anticipated load current. Wire cable voltage drop calculator and how to calculate. Wire calculator for android free download and software. There are many factors to consider before choosing the proper gauge. The length is calculated as the sum of the distances along the x, y, and z axes. Select the transformer with the closest voltage at or higher than that shown on the calculator and with the amp rating closest or higher for that transformer voltage. Guy wire calculator is the newest entry in wirelessestimators suite of etools trying to identify the various components and wire lengths in a guy wire system can oftentimes be a timeconsuming and difficult task. If you make a fourwire measurement the estimate will be more accurate. The measurements below are for building a simple dipole antenna. Cable size calculation spreadsheet electrical engineering portal. At 12 volts dc a loss of more than 10% in voltage across the length of the wire can mean the difference between the inverter running or not running.
This formula is based on the practices of wire rope manufacturers and assumes uniform winding of the wire rope. The length of the wire doesnt practically have an effect on the current, but it has a considerable effect on the voltage profile across the wire provided that the wire is feeding a considerable amount of load in the intermediate path or at the extremity. All data used in this excel sheet are according to iee. The spreadsheet calculates cable size according to length, amperage, temperature and number group cables.
Dipole antenna length calculator dipoles antennas are easy to build and can be very effective when placed half a wavelenth or more above ground. The results are conveniently displayed in inches, centimeters, feet and meters. Use an ohmmeter to measure the resistance of the wire. Wire antenna calculator amateur radio station ws6x. Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run. The requirements of the national electrical code nec and local codes must always be followed. The voltage drop v in volts v is equal to the wire current i in amps a times 2 times one way wire length l in feet ft. Download electrical cable size calculator excel electrical cables. It gives you the appproximate length of, for instance, 75. Voltage drop wire resistance x amps of current eir note we have an interactive excel wire loss calculator at. Select the type conductor wire material, the circuit voltage and the phase of the circuit. View our wire weight and length calculations for the wire division.
Nichrome is wound in coils to a certain electrical resistance, and current is passed through it to produce heat. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun. This calculator also calculates the voltage drop and the resulting voltage at the load. This formula to obtain the length of a halfwave dipole antenna will give a good ballpark value to start with. When sizing conductors, calculations limits wire size to voltage drop and nec ampacity. You can use this calculator to estimate how much wire is left on a spool. Type a and type c are the common types of nicr coils. Please check with your electrical inspector or a licensed electrician for the proper wire size. Wire size calculator ad free is designed for estimating wire gauge in ac circuits. Specific resistance or resistivity of conductor is used here for copper and aluminum is 12. This can be helpful if doing your own repairs or adding custom wiring to make sure. Wire products weight calculator tie wire weight calculator. The transformer to use should is determined by the results obtained for the selected wire gauge, length, and temperature.
Finding the exponent for 00, 000, and 0000 gauge wire is slightly different. Consult with an engineer if your application requires more complex calculations. Coil physical properties calculator production solution. Guy wire calculator is the newest entry in wirelessestimator. Wire calculator wire calculators in commerce, the sizes of wire are. The wire size calculator will give you a very simple and quick solution to the problem of calculating the size of wires and cables for pump applications in golf courses, landscape projects, and agriculture. This calculator does not account for all possible variables and factors relevant to the selection of wire size and circuit protection. Wire sizes and maximum length determination 752007 page 1 of 11 wire sizes become important at low voltages. First find the exponent in the equation by subtracting the wire gauge from 36 then dividing by 39. In some applications wire sizes are specified as the cross sectional area of the wire, usually in mm. This is a world wide web front end for a public domain program written by w4vp9kf using php. In actual practice, drum capacities may be 2530% less than the values given by this formula due to uneven spacing, loose winding and overlapping.
This program has been derived from a public domain basic program written by. Wire length calculator for chainmaille chain of beauty. If im using silver plated wire or copper wire, i dont need to worry about the length because the wire is so cheap, and i always have a lot on hand. This formula takes into consideration the capacitive endeffect from insulators which shortens the physical length requirement for the equivalent electrical length. Displacement to length ratio calculator disclaimer. Cable size calculations based on motor horse power hp and specified current. Start by measuring the resistance of the length of wire. We have a fully fledged application where you can size lv and mv cables up to 33 kv, current capacity in accordance with bs 7671, era 6930 and iec 60502 and with clear easy to read calculations and reports. The basic formula for determining the length of a center fed, halfwave wire dipole or inverted vee antenna is 468. Wire weight and length calculations wire division elgiloy. For best results, use the longest wire wire length feet 1. Its also possible to get really unlucky and pick a wire length thats outside of your tuners range. Southwire s voltage drop calculator is designed for applications using awg and kcmil sizes only. Always use the total length of the circuit for calculations.
For wire length of 2x10ft, wire length should be 10ft. Avoid dangerous wiring miscalculations with this simple wire gauge selector 120v480v. The calculator allows entry of a voltage drop, but caution should be used when doing so to make sure you are calculating the wire sizes in accordance with nec article 21019 fpn no. About wire length calculation revit products autodesk. Wire size calculator for android free download and software. If you make a four wire measurement the estimate will be more accurate. A very basic program for calculating the length of each leg of a 12 wave wire dipole antenna. So, for every foot of twist, you need an extra 12 0. The overall length of wiring in a circuit is calculated and displayed as the value for length in the properties palette. Download the best cable calculation software windows report. The maximum distance between the source and the equipment is half the calculated distance.
Even the length, diameter of wire used, and type of feedline can be a factor to some extent. In nicrc, additionally iron fe is added along with nickel and chromium. The nec allows a maximum of a 3% voltage drop on the main branch of a circuit at the farthest outlet of power and 5% total to both feeders and branch. Cable sizing, sustained current capacity bs 7671 wiring regulations, voltage drop clctr 50480, fault level and impedance iec 60909. Swr will vary based on topography, wire orientation and use of ground or counterpoise. An212 application note 12 volt wire length calculator. Southwires voltage drop calculator is designed for applications using awg and kcmil sizes only.
Second find 92 to the power calculated in the previous step. Substitute 1, 2, and 3 for the gauge in the formula above instead of the awg value. Cablemate, etap cable sizing, prodesign, and electricalom are some of the best cable calculation software solutions you can download on. The calculator can be used to calculate maximum length of copper wires. How do you calculate the length of twisted conductors. Helps determine the proper wire size for an electrical circuit based on the voltage drop and current carrying capacity of. The purpose of the calculator is to determine the size of the conductor wire in a circuit of a given distance with a given amperage load. Endfed wire antenna lengths amateur radio stack exchange.