General information on high voltage cable systems 1. The ideal electrical design and circuit calculation software for electrical contractors, electrical consultants and electrical engineers. Written by schneider electrics most talented electrical distribution experts, the electrical installation guide is written for professionals who design, install, inspect, and maintain lowvoltage electrical installations in compliance with the standards published by the international electrotechnical commission iec. Iec, nec, bs, etc and some standards emphasise certain things. Lowvoltage cables are widely used in utility and industrial installations requiring. The cable sizing calculator calculates the cable size based on current rating, voltage drop and short circuit current according to iec 60364 and hd 60364 standards. Iec 62040, cables iec 60228, busbars iec 604392, fuses iec 60269, circuit breakers iec 60898 and iec 609472 and the iscad symbols iec 60617, which are. V v3 v0 the exact rated voltage selection of power cable depends on earth fault withstand limits and specifications considerations that are made by the power system designers. The numbers of older iec standards were converted in 1997 by adding 60000. Network analysis software, which overcoming any technical limitations, requires a higher level of technical input, can be timeconsuming and often the cost is. Cablesizer is a free online cable sizing tool based on iec and nec standards. Step 1 good earthing grounding system according to iec bs en 623053.
Multiplication factors the cable sizing calculator applies a multiplication factor to the cable ampacity based on the cable application selected. Iec 60228 is the international electrotechnical commission s international standard on conductors of insulated cables. User friendly interface with full and accurate cable sizing calculations to iet bs7671 and integrated electrical cad plan design features. Iec 60364 electrical installations for buildings, is a harmonized standard that has been adopted by many countries in the world. Cablesizer cable sizing calculations to iec and nec standards. Selection and erection of electrical equipment wiring systems is the iec standard governing cable sizing. Cyme power engineering software and solutions identify the right type of cable for your low voltage installation the low voltage cables are those with a voltage rating equal or less than 1kv. View all results for iec cable at sweetwater the worlds leading music technology and instrument retailer. An effective cable sizing procedure model for industries an d. Protective earthing pe conductor sizing software cable. British standard cables also known as bs cables are electrical cables manufactured in accordance with and compliant to a specific british standard.
Cable size calculation busbar size calculation according. Gridcablemax is a user friendly program that determines cable ratings with total accuracy. These include onecore, threecore and threecore with ground conductor with all the nominal and cable construction data available for the calculations. Iec, nfc, rgie, afnor standards compliance trace software. Iec 60287 calculation of the continuous current rating of cables 100% load factor is the international standard which defines the procedures and equations to be used in determining the current carry capacity of cable. Hundreds of standards including cable testing standards need for cable testing has existed the 1800s guided ieee 400 series bundle standards ieee cable testing standards. The current version is third edition 200411 among other things, it defines a set of standard wire crosssectional areas. Iec xlpe cable systems specified according to iec international electrotechnical commission are among many other standards. Iec standards are generally issued in two languages. High voltage xlpe cable systems technical user guide. Cyme power engineering software and solutions low voltage. High voltage xlpe cable systems techincal user guide brugg cables page 3 1.
Cablesizer is an automated cable sizing and design calculation tool to iec and nec standards. Our software has been designed to calculate the current rating, temperature rise and cable losses of high voltage power cables under multiple scenarios and installation conditions in accordance with iec standard. Electrical design, cable sizing and certification software. Low voltage cable reference pages give typical data on cable current ratings, derating factors, impedances, etc. Current capacity to bs 7671, era 6930 and iec 60502. Iec 60287 current capacity of cables an introduction.
The cyme software includes a comprehensive cable library that comprises a large number of low voltage cables from various manufacturers. Lv and mv cables up to 33 kv with current capacity in accordance with bs 7671, era 6930 and iec 60502. The cable sizing calculator calculates the required cable size according to asnzs 3008 australia and new zealand standard. The reporting function also provides a concise record of the cable size.
Electricaldesign implements and meets the standards of hd 384, iec 60364 and the british bs 7671. Also, check out our blog for news and discussion on cable sizing. The software determines the cable size for the specified voltage drop constraints. Iec, the international electrotechnical commission, is a nonprofit organization that develops and publishes standards concerning electrical technologies, of which a truly wide variety exists in todays modern world. Earthing grounding system according to iec, bsen and. Electrical cable manufacturers demonstrate they have followed the steps to fulfil british standard requirements by putting a bs mark on their cables. European standards reference guide 3 purpose of the iso iec 11801 standard the international standard provides users with an applicationindependent generic cabling system capable of. Iec, nec, bs, etc and some standards emphasise certain things over others. Etap cable sizing module considers zero sequence triple harmonic constraints as well as other harmonic constraints based on correction reduction factors for other order of harmonics. An effective cable sizing procedure model for industries and commerial buildings.
This highlights the importance of understanding and bridging the gap between standards to properly design and coordinate an electrical system. Cable lugs can be chosen according to the required sizes from the table during assembly and even the component size can be. Electrical installation handbook protection, control and. Cablesizer cable sizing calculations to iec and nec. The cyme low voltage cable sizing module calculates the cable size at a given location on the network according to any one of the following standards. Iec 60287 current capacity of cables rated current. Is iec ieee standard for bus bar sizing calculations 05142015 2. Etaps cable ampacity software is used for calculating cable ampacity based on nec, ieee, icea, iec, and bs standards for underground duct banks, cable trays iec cable ampacity table armoured cable. In the previous note we looked at the approach taken by the standard to the sizing of cables and illustrated this with an example.
Iec vs ansi switchgear understanding the global standards. Given the nature of cable sizing, it can be difficult to get the necessary calculations into a. This standard covers complete cable glands as supplied by the manufacturer or the supplier responsible for placing the product on the market. Cable sizing calculations for phase, neutral and earthing conductors are based on the following criteria. Iec 60364552 2009 electrical installations in buildings part 552. In 1991 the iec has ratified cooperation agreements with cenelec european. Iec 60320 appliance couplers for household and similar general purposes is a set of standards from the international electrotechnical commission iec specifying nonlocking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 v a. Extra considerations are now been made when calculating the design current for the power factor correction units, in order to comply with iec 608311 and iec 609311.
Impedance and voltage drop to iec 60909 and cenelec clctr. Power cables with extruded insulation and their accessories for rated voltages from 1kv to 30kv. The electrical installation guide is dedicated to professionals who design, install, inspect, and maintain low to mediumvoltage electrical installations in compliance with international electrotechnical commission iec standards. Mar 02, 2019 cable size calculation, busbar size calculation according iec 61439 1 standard download automation software documentation. The iec publishes international standards, technical guides and reports which are the bases or, in any case, a reference of utmost importance for any national and european standardization activity. The cable sizing calculator considers current rating, voltage drop and short circuit current according to the iec 60364 and hd 60364 standards. Therefore subsequent current rating of cable to be 361 0.
Then, v is the cable rated voltage between phase conductors, expressed as. International standard wire sizes iec 60228 comparison of swg red, awg blue and iec. From manufacturers tables selected cable size is 240 mm2. Electrical installation guide, iec standards schneider. Jul 26, 2019 this webinar covers cable sizing, current carrying capacity and electrical shock protection based on iec and british standards.
Cablesizer cable sizing calculations to iec and cablesizer is an automated cable sizing and design calculation tool to iec and nec. Cable sizing software cable sizing calculation etap. Founded in 1906, the iec international electrotechnical commission is the worlds leading organization for the preparation and publication of international standards. Among other things, it defines a set of standard wire crosssections. Cable sizing calculator iec 60364 and hd 60364 jcalc. Given the nature of cable sizing, it can be difficult to get the necessary calculations into a spreadsheet, leading to technical inaccuracies, approximations and lack of validation. Multiplication factors the cable sizing calculator applies a multiplication factor to the cable ampacity based on the cable application.
Gridcablemax hv cable sizing software made for engineers. Complies with standards iec 60287, iec 60853 and nethermcgrath methods. List of international electrotechnical commission standards. Determining the maximum current power cables can sustain without deterioration. Eaton s cyme software includes a comprehensive cable library that comprises a large number of low voltage cables from various manufacturers. Pdf cablesizer cable sizing to iec and nec standards. It considers current rating, voltage drop and short circuit current. Cyme power engineering software low voltage cable sizing.
International iec standard 60092352 standard iec 60092352 third edition 60092352 iec. Source characteristics earthing system, fault levels etc load current. Size your installations with the elec calc software and comply with electrical standards. The option to size based harmonic spectrum is only enabled when bs 7671 17th edition or iec 60364 standards are selected for cable sizing. This is an incomplete list of standards published by the international electrotechnical commission iec. Medium voltage cables to iec 60502caledonian medium voltage.
Cable sizing methods do differ across international standards e. A cable cleat is a device designed to provide securing of cables when installed at intervals along the length of the cables where the system peak fault current and the cable diameter are known, the formula above, excerpted from the international standard iec. Nec nfpa 70 2011 national electricity code is the equivalent standard for iec 60364 in north america and includes a section covering cable sizing in article 300. Selection and erection of electrical equipment a wiring systems. Each low voltage cable is calculated based on the cable tables and the correction factors in elot hd384. The cable sizing calculator calculates the cable size according to asnzs. We then looked at one method of applying the standard. No signups or logins required, just click below to start sizing to either nec or iec standards. An effective cable sizing procedure model for industries. Our software has been designed to calculate the current rating, temperature rise and cable losses of high voltage power cables under multiple scenarios and installation conditions in accordance with iec standard 60287. The cymcap software is dedicated to performing ampacity and temperature rise calculations for power cable installations.
Isiecieee standard for bus bar sizing calculations cr4. The relatively new switchgear and control gear standard, iec. Iec standards often have multiple subpart documents. The single core cables are designed for distribution of electrical power with nominal voltage uou ranging from. Source characteristics earthing system, fault levels.
The maximum system fault level in this application is 8. Our website and phones are open, but shipping may take a few extra days, for the safety of our team. The standard is applicable to all alternating current voltages and direct current cables up to 5kv. Cablesizer cable sizing calculations to iec and cablesizer is an automated cable sizing and design calculation tool to iec and nec standards cable sizing calculation open electrical cable sizing calculation. This part of the iec 61084 series specifies requirements and tests for cable trunking systems cts and cable ducting systems cds intended for the accommodation, and where necessary for the electrically protective separation, of insulated conductors, cables and. They are suitable for installation mostly in power supply stations. Headquartered in geneva, switzerland, iec standards. See also cable sizing calculators for nec, iec 60364 and hd 60364 standards. Low voltage cable reference pages give typical data on cable.
This is an incomplete list of standards published by the international electrotechnical commission iec the numbers of older iec standards were converted in 1997 by adding 60000. High voltage xlpe cable systems techincal user guide brugg cables page 2. Cable impedance calculations provide details on how to calculate the dc resistance, ac resistance and inductive reactance of a cable. Gridcablemax hv cable sizing software made for engineers by. Hv cable sizing software in compliance with iec standards. Impedance and voltage drop to iec 60909 and cenelec clctr 50480.
If cable specify as per nec then you need to use nec for evaluating the cable. Iec is the sole owner of all intellectual property rights associated with this document and any future work product thereof. Electrical installation guide, iec standards schneider electric. Aberdare cables, a member of the powertech group, is a leading african cable manufacturer and has been in existence since 1946. Cable size calculation, busbar size calculation according iec 61439 1 standard download automation software documentation. When sizing cables nearly, everyone uses some form of software. Headquartered in geneva, switzerland, iec standards reach over 150 countries. Iec 60228 conductors of insulated cables iec 60331 tests for electric cables under fire conditions circuit integrity iec 60332 tests on electric and optical fibre cables under fire conditions iec 60502.
This article examines the sizing of electrical cables i. The sizing of low voltage cable covers most of the common nonarmored cable installations for utility, domestic, commercial and industrial systems. From 1988 intelec collected a extended knowledge with iec 60364 regulations and introduced the integrated cablenet program on the market 1993 in cooperation with energy company nuon. Buried in backfill, multiple buried circuits and multiple cable types, unfilled troughs, filled cable trays. Ihs markit is your source for iec standards and publications. The option to size based on overload current is only enabled when bs 7671 17th edition or iec 60364 standards are selected for cable sizing.
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