Multiple awg choices consult responsible engineer for required ampacity awg american wire gauge to mm2 millimeters squared conversion spec a185 april, 2010. Review the above input data and press the button below when youre. Dlo cable stands for diesel locomotive cables or dlo wire. This takes into account correction factors for voltage drop, temperature and the number of currentcarrying conductors. Based on not more than three conductors in raceway or cable or earth per nec table 310. Usually, a general purpose house circuit is designed for 20 amps. Prysmian and draka cable ecosafe co iv 8 awg through 750 mcm copper single conductor class i flexible strand with braid cable. In this case the 5% adjustment of rule 81061 cannot be applied. Conduit fill calculator conduit fill is the percent of area inside the conduit taken up by the cable s. Our products lie in the walls of your home, in the transmission lines that power our neighborhoods, in the places we work, schools where we learn and the hospitals that keep us well. Correction factors for ambient temperatures over 30c, multiply the ampacities shown in table 1 or table 3 by the appropriate correction factor to determine the maximum allowable load current. Ampacity is a term for the maximum current carrying capacity, in amps, of a particular device. Diesel locomotive cable or dlo cable is used for wiring of dieselelectric locomotives, telecom power supply, shipyards, motor leads, mining and earthmoving equipment, oil and gas rigs and in applications where flexibility and durability is required. Aluminum conductor steel reinforced bare applications used as bare overhead transmission conductor and as primary and secondary distribution conductor and messenger support.
Ampacity 60 c 75 c 90 c 14 15 15 15 12 20 20 20 10 30 30 30 8 40 50 55 6 55 65 75 4 70 85 95 2 95 115 nec table 310. Pdf ampacity derating factors for cables buried in short. Also suitable for electricallydriven earthmoving equipment, waterheater leads, power. Dec 07, 2016 im no expert, but ill tell you what i understand. Sep 26, 2016 most cable manufacturers provide ampacity tables on their websites. The horizon system runs on alwaysavailable cloudbased software for office computers. Usually, a general purpose house circuit is designed for 20.
Introduction the ampacity of underground power cable lines is limited. Cable systems cable ampacity software cable sizing. The ampacity of a cable should equal or exceed the maximum current the cable will be expected to carry during its service life, without exceeding its temperature rating. General cables ampacity calculator is a quick and easy tool to get conductor ampacities for different temperature ratings. Software programs are commercially available that can perform sophisticated modeling. Cable ampacity software cable sizing software cable. Home download center electrical software cable ampacity calculator description this is digital version of the most frequently used ampacity tables that you would find in electrical codes canadas cec and u. Construction monkey calculator that combines conduit and wire properties into one easy table. Models duct banks, pipe cables, extruded cables, directly buried cables, casings, or mixtures thereof. Southwire simpull ct1et type mv105 cable is for use in 350 kcmil ampacity armoured cable.
Practical power cable ampacity analysis cedengineering. All dimensions are nominal and are subject to normal manufacturing tolerance. Eatons cyme cymcap software is for performing ampacity and temperature rise calculations for power cable installations. Again, ampacity ratings are based upon ambient temperatures. Vfd cables feature a black polyvinyl chloride pvc jacket that is sunlight, moisture, oil and. Cablesizer is an automated cable sizing and design calculation tool to iec and nec standards. The software examines cable temperature and ampacity in performing analysis of existing systems. Shop look up cables by wire gage size size 444 mcm cable.
Allowable ampacities for 46 conductors in raceway, cable or earth. Cables free delivery possible on eligible purchases. Dlo diesel locomotive cable automotive wire texcan. He may agree to using the nec table 31016 750kcmil ampacity for building wire. Determining the maximum current power cables can sustain without deterioration of any of their electrical. Southwire is the leading manufacturer of wire and cable used to transmit electricity across north america. The cymcap software is dedicated to the calculation of ampacity and temperature rise calculations for power cable installations. Electrical conductor wire size or gauge awg or kcmil. Drilling rig and commercial marine cable over 20 years of superior perfomance on oil rigs around the world certified as type pper ieee45 std 1998 listed by ulfor marine applications to std ul 9 meets iec 3323 category a flame test approved by abs, dnv, lloyds, uscg and canadian coast guard csa listed to c22. Type p marine and offshore cable is primarily designed for power, control, signal, and instrumentation applications. Index terms finite element analysis, multiphysics analysis, cable insulation, cable shielding, grounding. Diesel locomotive cable, 444 kcmil, 2000 volts eprxlcpe, ul rhhrhw2, 2000 v and cul rw90 v.
National electrical code allowable ampacities of insulated. C, 500 mcm is rated at 430 amps, and the specific ampacity is 0. Back then, these heavy duty 1kv and 2kv diesel locomotive cables were used. Loca loss of coolant accident, ieee 383 defines test requirements. Drilling rig and commercial marine cable tec cables.
First, in my experience, most 105c rated cable is in the mv category that i have dealt with personally and rated for greater than 2000 volts. The primary purpose of the ampacity calculations was to detennine a minimum conductor size and cable system configuration based on the design requirements provided by xcel energy. Allowable ampacities of single conductor in free air allowable ampacities for not more than three conductors in raceway, cable or earth. Cyme power engineering software and solutions calculate ampacity and temperature rise of power cable installations the cymcap software is dedicated to performing ampacity and temperature rise calculations for power cable installations. A polyester tape separator is used over the conductor. Southwire is one of the worlds leading manufacturers of wire and cable, tools, components and assembled solutions. Allowable ampacities for 79 conductors in raceway, cable or earth.
Groundbreaking products like max storm overhead conductors, c7 overhead conductors and vr2 vibration resistant cable are continuously redefining the industry. Provides quick and easy results for the conduit fill percent, per nec guidelines. Ampacity 290 350 430 conductor size avvg 250 350 500 ground insulation. Awg wire chart, aught, mcm kcmil, us inch, and metric wire. To avoid this damaging occurrence, heat must be dissipated outside the cable. Under the same conditions, a 10 american wire gauge awg conductor is rated for 170 amps, with a circular mil area of 105.
California proposition 65 cancer and reproductive harm. The accuracy of the software provides increased confidence when upgrading power cable installations and designing new ones. The advanced wire ampacity calculator will calculate the maximum ampacity for a wire based on wire gauge, preferred or available wire insulation, conductor type and installation specifications. General cable conductor ampacity calculator for ios free. Cable ampacity, buried cable, finite element analysis, multiphysics, magnetic shielding, proximity effect, cable duct bank i. Singleconductor cables 19 section 6 ampacity tables table 6 1 correction factors for various ambient air temperatures 21. If the heat exceeds the cables rating, the cable could fail, even possibly catching fire. Dlo, diesel locomotive cable, 2000 volt flexible power. Cable ampacity software cable sizing software cable derating. Cable sizing and its effect on thermal and ampacity values in underground power distribution over the past decade, underground power distribution has become increasingly popular due to its reliability, safety, aesthetic characteristics, as well as the ever increasing focus on the environmental impacts of the various stages of. The calculation determines the proper cable sizes to carry specified loads in designing new systems and upgrading power cable installations.
Etap cable systems help engineers design cable systems to operate to their maximum potential while providing secure and reliable operation. Dlo is especially suitable to supply power to traction motors of dieselelectric locomotives. All 4conductor values have been derated per 2008nec table310. Ampacity in accordance with the nec for cables in uncovered cable tray. Variable steel core stranding enables desired strength to be achieved without sacrificing ampacity. Conductors soft annealed stranded tinned copper per astm b 33. If all conductors are current carrying, the ampacity must be reduced by 0. Conductors 1 stranding 192424 insulation wall, nom od inches 0. Sounds like the described cable could be locomotivepower type with 1924x24awg flexiblestranding.
The standard insulation has a continuous operating temperature of 125c, allowing for higher ampacity levels. You must use the correct size wire for the current load requirement of the circuit to prevent the wire from overheating. Ampacities for portable power cables, amperes per power conductor types w, ggc, shdgc power conductor size single conductor. Cable management program can vary in scope from a simple logistics. Refer to cec for ampacity specifications are subject to change without prior notice. Multiconductor mc cable ampacity data this page intentionally left blank. Overhead line ampacity ampacity ampere capacity limitation maximal permitted operational conductor temperature. This calculator also provides wire size correction factors for temperature, number of conductors in a raceway, and voltage drop for long wire runs. For ambient temperatures other than 78f 86f, or more than three currentcarrying conductors in a raceway, cable or earth, use the advanced wire ampacity calculator. Table 6 12 triplexed cable underground ducts six circuits, three single or.
This type of cable is listed, for purposes of ampacity, in tables 310. Allowable ampacities of insulated conductors rated 02000 volts as excerpted from the 2002 national electrical code ampacities of not more than three currentcarrying conductors in raceway, cable. As a cable ampacity analysis application, etap engineering software determines the cable current capability based on ieee, iec, icea, nec nfpa, bs, and. C ampacity of copper aluminum wire electrical allowable ampacities of. The accuracy of the calculation provides increased confidence in the design, upgrading, and analysis projects. Specialized services and application expertise enables texcan to customize solutions to meet or exceed our customers project needs.
Size 444 mcm cables and 444 mcm wire size 444 kcmil cables and 444 kcmil wire. Engineering data for copper and aluminum conductor. What is wire ampacity and how do you find ampacity rating. Temperature ratings depend on the heat resistance of the materials used for the insulation and jacket of the cable. Flexible, oil, sunlight and ozoneresistant, flameretardant, 40c to 90c my account orders. Nec type designa tion for power and control cables enclosed in a welded and corrugated metallic. Home products our products lie in the walls of your home, in the transmission lines that power our neighborhoods, in the places we work, schools where we learn and the hospitals that keep us well. The ampacity of 4 conductor cables is based on three current carrying conductors and the fourth conductor being used as a neutral or grounding conductor. Suggested ampacities all types of insulations copper aluminum not more than 3 conductors in raceway or cable single conductor in free air not more than 3 conductors in raceway or cable single conductor in free air awg or mcm conductor temperature rating conductor temperature ratings 8590c temp 185f 110c temp 230f 8590c temp 185f 110c. In case of cable duct bank with a number of lines, fea shows a stronger electromagnetic and thermal interference than predicted by the iec 60287 standard. Therefore, the resulting ampacity of a 10 conductor is 1.
Comparison of finite element analysis to iec60287 for. Proven industry leader since 1977, summit has been a supplier of choice for electrical professionals in the construction, mro, oem and industrial marine industries. Cable ampacity calculator electrical engineering portal. The current carrying capacity is normally associated with electric cable. Conductors 1 stranding 159124 insulation wall, nom od inches 0. Dlo cable was originally developed for wiring dieselelectric locomotive trains dating back before the 1920s, over 100 years ago. Usamp prime insulated cable ampacity software models all types of underground power cables pipetype, extruded, and solid paper. Usamp prime software models all types of underground power cables pipetype, extruded, and solid paper. It is designed for contractors, electricians, and other electrical. Cyme power engineering software and solutions power cable. Portable or fixed power cable for use in drilling rigs, dieselelectric locomotives, railroad and transit car wiring, where reliability is a prime concern. There are varieties of dlo cable the are listedmarked with an nec table 310 type designation, like ul rhhrhw. Factors that result in lower cable ampacities, such as high soil thermal resistivity and deeper burial.
Cablesizer cable sizing calculations to iec and nec standards. Ampacity diesel locomotive cable copper epr cpe author. Lead wire reference chart poster electrical cable supply. Type p marine and offshore cable is primarily designed for power, control, signal, and instrumentation applications for offshore and land drilling rigs, marine vessels, and offshore production facilities.
Ihi connectors aka international hydraulics inc 7700 st. Overhead transmission products a world leader in overhead electric power transmission products, southwire is constantly pioneering ways to bring efficient and sustainable solutions to customers. Cable sizing and its effect on thermal and ampacity values in. For use in transit carrailroad wiring, electricdiesel. Dlo cable specs, amps, applications, sizes, pricing. Computes steadystate and transient ampacities and temperatures for multiple cables with equal or unequal loading. We can supply you with the mcm sizes as well including 373, 444, 777, 535 etc. Summit for your marine wire and cable ensures you will receive the best overall value, saving both time and money. Dlo cable specifications construction dlo diesel locomotive cable 2000v eprcpe. Engineering data for copper and aluminum conductor electrical cables.
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