wire size specifications - ac power cords | power cables ... · wire size specifications...
TRANSCRIPT
108
Wire Size Specifications
Harmonization Codes
Wire TypeDimensions
(inches)Stranding
Rated Current(amps)
Weightlbs./1,000 ft.
Wire TypeDimensions
(inches)Stranding
Rated Current(amps)
Weightlbs./1,000 ft.
20/2 POXT .096 x .185 26/34 3 18 18/3 SVTO .260 41/34 10 42
18/2 SPT-1 .105 x .203 41/34 10 20 18/2 SJT .298 16/30 10 44
18/2 SPT-2 .140 x .262 41/34 10 29 16/2 SJT .330 26/30 13 57
16/2 SPT-2 .155 x .285 65/34 13 37 18/3 SJT .320 16/30 10 59
18/2 HPN .144 x .286 41/34 10 30 16/3 SJT .345 26/30 13 72
16/2 HPN .155 x .305 65/34 13 38 14/3 SJT .375 41/30 15 94
18/3 SPT-1 .110 x .303 41/34 10 31 12/3 SJT .445 65/30 20 136
18/3 SPT-2 .140 x .335 41/34 10 37 18/3 SV .255 41/34 10 33
18/3 SPT-3 .170 x .380 41/34 10 48 18/3 SJ .320 16/30 10 60
16/3 SPT-2 .155 x .380 65/34 13 49 16/3 SJ .345 26/30 13 74
16/3 SPT-3 .185 x .435 65/34 13 62 14/3 SJ .375 41/30 15 97
14/3 SPT-3 .235 x .500 41/30 15 97 12/3 SJ .449 65/30 20 140
18/3 HPN .136 x .335 41/34 10 42 18/3 SJO .320 16/30 10 60
16/3 HPN .150 x .365 65/34 13 55 16/3 SJO .345 26/30 13 74
18/2 SVT .240 41/34 10 34 14/3 SJO .375 41/30 15 87
18/2 SVT .230 65/36 10 34 18/3 SO .382 16/30 10 92
18/3 SVT .255 41/34 10 42 16/3 SO .400 26/30 13 112
18/3 SVT .245 65/36 10 42 14/3 SO .549 41/30 15 192
112
International Standardized Appliance Connectors IEC-60320
Metric Conversion Guide
119
Country Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / Frequency
Gibraltar 240V / 50HzGreece 220-230V / 50HzGreenland (Den.) 220V / 50HzGrenada 230V /50HzGuadeloupe 220V / 50HzGuam 110-120V / 60HzGuatemala 120V / 60HzGuinea 220V / 50HzGuinea-Bissau 220V / 50HzGuyana 110V / 50-60HzHaiti 110-120V / 50-60HzHonduras 110V / 60HzHong Kong 200V / 50HzHungary 220V / 50HzIceland 220V / 50HzIndia 220-250V / 50HzIndonesia 220V / 50HzIran 220V / 50HzIraq 220V / 50HzIreland 220V / 50HzIsle of Man 240V / 50HzIsrael 230V / 50HzItaly 220-230V / 50HzIvory Coast 220V / 50HzJamaica 110V / 50HzJapan 100V / 50-60HzJordon 220V / 50HzKenya 240V / 50HzKorea 220V / 50-60HzKuwait 240V / 50HzLaos 220V / 50HzLatvia 220V / 50HzLebanon 110-120V / 50HzLesotho 240V / 50HzLettonia 220V / 50HzLiberia 120V / 60HzLibya 127-230V / 50HzLiechtenstein 220V / 50HzLithuania 220V / 50HzLuxembourg 220-230V / 50HzMacao 220V / 50HzMadagascar 220V / 50HzMadeira (Portugal) 220V / 50HzMajorca 220V / 50HzMalawi 230V / 50HzMalaysia 240V / 50HzMaldives 230V / 50HzMali, (Rep. of) 220V / 50HzMalta 240V / 50HzMartinique 220V / 50HzMauritania 220V / 50HzMauritius 230V / 50HzMexico 127V / 60HzMoldova 220V / 50HzMonaco 220V / 50HzMongolia 220V / 50HzMontseurrat 230V / 60HzMorocco 220V / 50HzMozambique 220V / 50HzNamibia (W.S. Africa) 220-250V / 50HzNepal 220V / 50HzNeth. Antilles 120V / 60HzNetherlands 220-230V / 50HzNew Caledonia 220V / 50HzNew Guinea 220V / 50HzNew Zealand 230V / 50HzNicaragua 120V / 60HzNiger 220V / 50HzNigeria 230V / 50HzNo. Ireland 220V / 50Hz
Country Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / Frequency
Afghanistan 220V / 50HzAlgeria 127/220V / 50HzAmerican Samoa 120/240V / 60HzAndorra 220-230V / 50HzAngola 220V / 50HzAnguilla 240V / 50HzAntigua 230V / 60HzArgentina 220V / 50HzAruba 115/127V / 60HzAustralia 240V / 50HzAustria 220-230V / 50HzAzores 220-230V / 50HzBahamas 120V / 60HzBahrain 220V / 50HzBangladesh 220V / 50HzBarbados 115V / 50HzBelarus 220V / 50HzBelgium 220-230V / 50HzBelize (Br.Hond.) 110V / 60HzBenin 220V / 50HzBermuda 120V / 60HzBolivia 110-115/220V / 50HzBosnia-Herzegovina 220V / 50HzBotswana 220V / 50HzBrazil 110-220V / 60HzBulgaria 220V / 50HzBurkina Faso 220V / 50HzBurma 230V / 50HzBurundi 220V / 50HzCambodia 120-220V / 50HzCameroon 220-230V / 50HzCanada 120V / 60HzCanary Islands (Spain) 220V / 50HzCape Verde, Rep. of 220V / 50HzCayman Islands 120V / 60HzCentral African Rep. 220V / 50HzChad 220V / 50HzChannel Islands 240V / 50HzChile 220V / 50HzChina, People's Rep. of 220V / 50HzChristmas Isl. (Aust.) 240V / 50HzCocos Isl. (Austrail.) 240V / 50HzColombia 110-220V / 60HzCongo, Rep. of 220V / 50HzCook Island (N.Z.) 240V / 50HzCosta Rica 120V / 60HzCroatia 220V / 50HzCuba 120V / 60HzCuracao Island 110-220V / 60HzCyprus 240V / 50HzCzech Republic 220V / 50HzDenmark 220-230V / 50HzDjibouti, Rep. of 220V / 50HzDominica 230V / 50HzDominican Rep. 110V / 60HzEcuador 120V / 60HzEgypt 220V / 50HzEl Salvador 115V / 60HzEngland 240V /50HzEquatorial Guinea 220V / 50HzEstonia 220V / 50HzEthiopia 220V / 50HzFiji 240V / 50HzFinland 220-230V / 50HzFrance 220-230V / 50HzFrench Guyanda 220V / 50HzGabon 220V / 50HzGambia 220V / 50HzGermany 220-230V / 50HzGhana 220V / 50Hz
Country Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / FrequencyCountry Voltage / Frequency
No. Mariana Is. 115V / 60HzNorfolk Is. (Aust.) 240V / 50HzNorway 220-230V / 50HzOkinawa 110-120V / 60HzOman 240V / 50HzPakistan 230V / 50HzPanama 110-120V / 60HzPapua New Guinea 240V / 50HzParaguay 220V / 50HzPeru 110-120V / 50/60HzPhilippines 115V / 60HzPitcairn Is. (U.K.) 240V / 50HzPoland 220V / 50HzPortugal 220-230V / 50HzPuerto Rico 120V / 60HzQatar 240V / 50HzRomania 220V / 50HzRussia 220V / 50HzRwanda 220V / 50HzSaudi Arabia 127-220V / 50/60HzScotland 220V / 50HzSenegal 220V / 50HzSerbia 220V / 50HzSeychelles 240V / 50HzSierra Leone 230V / 50HzSingapore 230V / 50HzSlovakia 220V / 50HzSomalia 110-220V / 50HzSouth Africa 220-250V / 50HzSpain 220-230V / 50HzSri Lanka 230V / 50HzSt. Kitts & Nevis 230V / 60HzSt. Lucia 240V / 50HzSt. Pierre & Miquelon 115V / 60HzSt. Vincent 230V / 50HzSudan 240V / 50HzSurinam 115V / 60HzSvalbard (Norway) 220V / 50HzSwaziland 230V / 50HzSweden 220-230V / 50HzSwitzerland 220-230V / 50HzSyria 220V / 50HzTahiti 220V / 50 HzTaiwan 110V / 60HzTanzania 230V / 50HzThailand 220-230V / 50HzTogo 220V / 50HzTonga 115V / 60HzTrinidad & Tobango 115-230V / 60HzTunisia 220V / 50HzTurkey 220V / 50HzUganda 240V / 50HzUkraine 220V / 50HzUnited Arab Emir. 220-230V / 50HzUnited Kingdom 240V / 50HzUnited States 120V / 60HzUruguay 220V / 50HzVenezuela 120V / 60HzVietnam 120-220V / 50HzVirgin Islands 120V / 60HzWales 220V / 50HzWestern Samoa 230V / 50HzYemen 220V / 50HzYugoslavia (former) 220V / 50HzZaire, Rep. of 220V / 50HzZambia 220V / 50HzZimbabwe 220V / 50Hz
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CountryCountryCountryCountryCountry
AAAAAAfghanistanAlbaniaAlgeriaAndorraAngolaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanAzores
BBBBBBahamasBahrainBalearic IslandBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBoliviaBosnia and HerzegovinaBotswanaBrazilBruneiBulgariaBurkina FasoBurma/MyanmarBurundi
CCCCCCambodiaCameroonCanadaCanary Islands (spain)Cape VerdeCayman IslandsCentral African RepublicChadChannel IslandsChileChinaChristmas Island (Australia)Cocos Islands (Australia)ColombiaComorosCongo, Democratic Republic ofCook Island (N.Z.)Costa RicaCote d'Ivoire/Ivory CoastCroatiaCubaCuracao IslandCyprusCzech Republic
DDDDDDenmarkDjibouti, Republic ofDominicaDominican Republic
EEEEEEast TimorEcuador
CountryCountryCountryCountryCountry
EgyptEl SalvadorEnglandEquatorial GuineaEritreaEstoniaEthiopia
FFFFFFaeroe IslandsFalkland IslandsFijiFinlandFranceFrench Giuana
GGGGGGabonGambiaGazaGermanyGhanaGibraltarGreeceGreenland (Den.)GrenadaGuadeloupeGuamGuatemalaGuineaGuinea-BissauGuyana
HHHHHHaitiHondurasHong KongHungary
IIIIIIcelandIndiaIndonesiaIranIraqIrelandIsle of ManIsraelItaly
JJJJJJamaicaJapanJordan
KKKKKKazakstanKenyaKiribatiKoreaKrakozhiaKuwait
LLLLLLaosLatviaLebanonLesothoLettoniaLiberiaLibyaLiechtenstein
PagePagePagePagePage
42193219192645191932191942
52619425
19195
421942191926462619252619
25195
19194
25192638433232301925325
25195
192619
3619265
195
P/NP/NP/NP/NP/N
8580.0988500.0988530.0988500.0988500.0989650.0989000.0988500.0988500.0988530.0988500.0988500.0988580.098
2500.0729650.0988500.0988580.0982500.0728500.0988500.0982500.0728580.0989650.0988580.0988500.0988500.0989650.0982550.0729650.0988500.0988002.0799650.0988500.098
8002.0798500.0982500.0728500.0988500.0982500.0728002.0798500.0989650.0988550.0988590.0988530.0988530.0982003.0988500.0988002.0798530.0982500.0728002.0798500.0982500.0728500.0989650.0988500.098
8540.0988500.0989650.0982500.072
8500.0982500.072
PagePagePagePagePage
255
2625191919
192632191919
1926421926261936261955
191926
55
2619
194219192626264038
52926
192632351926
519264219263837
P/NP/NP/NP/NP/N
8002.0792500.0729650.0988002.0798500.0988500.0988500.098
8500.0989650.0988530.0988500.0988500.0988500.098
8500.0989650.0988580.0988500.0989650.0989650.0988500.0988540.0989650.0988500.0982500.0722500.0728500.0988500.0989650.098
2500.0722500.0729650.0988500.098
8500.0988580.0988500.0988500.0989650.0989650.0989650.0988560.0988550.098
2500.0722000.0989650.098
8500.0989650.0988530.0988704.0988500.0989650.098
2500.0728500.0989650.0988580.0988500.0989650.0988550.0988520.098
121
CountryCountryCountryCountryCountry
LithuaniaLuxembourg
MMMMMMacaoMacedoniaMadagascarMadeira (Portugal)MajorcaMalawiMalaysiaMaldivesMaliMaltaMartiniqueMauritaniaMauritiusMexicoMicronesiaMoldovaMonacoMongoliaMontseurratMoroccoMozambique
NNNNNNamibia (W.S. Africa)NauruNepalNetherlandsNeth.AntillesNew CaledoniaNew GuineaNew ZealandNicaraguaNigerNigeriaNo. IrelandNo. Mariana IslandNorfolk Island (Australia)Norway
OOOOOOkinawaOman
PPPPPPakistanPalmyra AtollPanamaPapua New GuineaParaguayPeruPhilippinesPitcairn Islands (U.K.)PolandPortugalPuerto Rico
QQQQQQatar
RRRRRReunion IslandRomaniaRussiaRwanda
SSSSSSaint Kitts and NevisSaint Lucia
CountryCountryCountryCountryCountry
Saint Pierre & MiquelonSaint VincentSaudi ArabiaScotlandSenegalSerbia & MontenegroSeychellesSierra LeoneSingaporeSlovakiaSloveniaSomaliaSouth AfricaSpainSri LankaSudanSurinameSvalbard (Norway)SwazilandSwedenSwitzerlandSyria
TTTTTTahitiTaiwanTajikistanTanzaniaThailandTogoTongaTrinidad and TobagoTunisiaTurkeyTurkmenistan
UUUUUUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUzbekistan
VVVVVVanuatuVaticanVenezuelaVietnamVirgin Islands
WWWWWWalesWestern Samoa
YYYYYYemenYugoslavia (former)
ZZZZZZambiaZaire, Republic ofZimbabwe
PagePagePagePagePage
1919
4219191919262642192619252655
191925261919
42324219251919325
1926265
3219
1926
4255
322555
4219195
26
19191925
2626
P/NP/NP/NP/NP/N
8500.0988500.098
8580.0988500.0988500.0988500.0988500.0989650.0989650.0988580.0988500.0989650.0988500.0988002.0799650.0982500.0722500.0728500.0988500.0988002.0799650.0988500.0988500.098
8580.0988530.0988580.0988500.0988002.0798500.0988500.0988530.0982500.0728500.0989650.0989650.0982500.0728530.0988500.098
8500.0989650.098
8580.0982500.0722500.0728530.0988002.0792500.0722500.0728580.0988500.0988500.0982500.072
9650.098
8500.0988500.0988500.0988002.079
9650.0989650.098
P/N
8500.0989650.0982500.0729650.0988500.0988500.0989650.0989650.0989650.0988500.0988500.0988500.0988580.0988500.0988580.0989650.0988500.0988500.0988580.0988500.0988520.0988500.098
8500.0982500.0728500.0989650.0982500.0728500.0988580.0989650.0988002.0798500.0988500.098
8580.0988500.0989650.0989650.0982500.0728530.0988500.098
8530.0988500.0982500.0728500.0982500.072
9650.0988530.098
9650.0988500.098
9650.0988500.0989650.098
PagePagePagePagePage
19265
26191926262619191942194226191942193719
195
19265
194226251919
421926265
3219
32195
195
2632
2619
261926
North America&
Canada
124
1U - Unit of rack measurement equal to 1.75" on which panelheights are based [EIA (Electronic Industries Association)-310-D.]
Abrasion Resistance - The ability to resist surface wear.
Alternating Current - (A-C) The charge flow of a currentperiodically and regularly reverses in a cyclic manner.
American Wire Gauge (AWG) - This is the standardized systemfor identifying wire diameter of copper conductors. It comesfrom a North American wire and cable-sizing standard. Thisgauge utilizes an inverse relationship to the size. So the higherthe number, the smaller the cable. An example of this would bethat a small gauge North American cable with three conductorscould be 3x18 AWG. This could be expressed as 18/3 AWG. Acable sized 3x10 (10/3) is significantly larger, due to the smallernumber. It is also referred to as the Brown and Sharpe (B&S)wire gauge.
Ampacity - This is the capability to handle electric current asexpressed in amperes. It is the highest current an insulatedconductor can handle before it exceeds the insulation or jackettemperature limits. Also known as Current carrying capacity
Ampere - (A) Unit that expresses rate of flow of an electricalcurrent. One ampere is the current flowing through one OHM ofresistance at one volt potential.
Appliance coupler - The combination of a connector and inletthat enables the connection and disconnection of a cord toequipment.
Approval - After a complete product or component part is testedby a testing agency, the test results may be represented in theform of an approval. Agencies which grant approvals oncomponents include SEMKO, FIMKO, NEMKO, DEMKO, KEMA,CEBEC, SEV, OVE, and, in some cases, VDE. See alsoCertification and Recognition.
Boot - A protective layer covering any part of a conductor orcable as well as its insulation or jacket.
Breakdown Voltage - This is the amount of voltage at which theinsulation deteriorates. This could be the insulation between twoconductors or a conductor and ground.
BSI (British Standards Institution) - A standards writingorganization and a testing agency. BSI typically approvesconsumer goods and end use products.
Bunch Stranding - This is the twisting of wires together withinthe same frequency in order to achieve a specific gauge.
CEBEC (Committee for Electrotechnical Belgium EuropeanCommunity) - Independent Belgian service company providingproduct and system certifications, CE Marking assistance,training, and advice for manufacturers, businesses, andauthorities.
CE Marking - In its simplest form, the CE Marking is an electricaldevice’s passport that allows it to enter Europe. It symbolizes thatthe equipment complies with all requirements relating to safety,public health, consumer protection or other requirementsdefined in directives issued by the Council of the EuropeanUnion. It is neither an agency approval nor a quality mark. It is aself-declared conformity to EU (European Union) directives. Itallows the responsible customs official to know at a glance thatthe equipment is authorized to enter and to circulate freelywithin the EU.
CENELEC [Comite European de NormalisationElectrotechnique (European Committee for ElectrotechnicalStandardization)] - Promotes European harmonization andworks with technical experts to publish standards for theEuropean market in support of this goal.
Certification - Another of the terms used to describe the resultsof testing by one of the national agencies. Example: CSAcertifies products, once tested and found to be satisfactory andconsistent with CSA standards. Certification comes in the form ofa document and permission to use the CSA mark.
(Electric) - An electrical circuit is a complete path of electricalcurrent. It is considered to be an open circuit when thecontinuity is broken and a closed circuit when continuity ismaintained.
Circuit Breakers for Equipment - Circuit protection devicethat falls into the supplementary circuit protection category. Itis designed to shut off electrical current, before overcurrentdamage can occur in the equipment. Sometimes written asCBE.
Conductivity - This word is used to describe the capability ofany material to carry an electrical charge. It is typicallyexpressed in terms of the percentage of copper conductivity.Copper has one hundred percent conductivity.
Conductor - This is any material in which electrons can freelymove from atom to atom, which is electrical current flow. It isusually metal and in the case of power supply cords, a wire orcombination of wires not insulated from one another.Conductors could be a wire, that is solid, or stranded of a multi-wire cable. Cords could consist of two or three conductors.
Continuity Check - This is a test used to determine if anelectrical current will flow continuously throughout the lengthof a wire or cable.
Continental Europe - Continental Europe refers to a largeportion of Europe that uses the CEE 7/7 (or Schuko) plug/socketpattern. The countries included are Germany, France (plugonly), Belgium (plug only), Austria, the Netherlands, Norway,Sweden, Finland, Russia, and a few other countries throughoutEurope.
Cord - This is a small insulated flexible cable made to withstandmechanical abuse. There is not a clear distinction in terms ofsize between a cable and a cord. Generally a cord should be asize AWG 10 and smaller.
Cordset - This is a detachable way for supplying electricityfrom the main supply to an electrical device. It has a femaleappliance coupler or connector at one end and a male plug atthe other. The standard connector for the interface between theelectrical device and the cordset is an IEC 60320-1 connector.
CSA (Canadian Standards Association) - This is the equivalentof the Underwriters Laboratories, and is a non-profitorganization operating a listing, testing, and approval servicefor equipment and materials.
DEMKO - Danish test lab. In 1996, Underwriters Laboratories,Inc purchased DEMKO A/S. In 2000, DEMKO A/S changed itsname to UL International DEMKO A/S.
EMI/RFI (Electromagnetic Interference/Radio FrequencyInterference) - Phenomenons that are generated in nature andin electrical equipment as a result of switch closures, and bymotors, inductors, and various other complex electrical circuits.EMI/RFI is conducted from the point of origin either through thecables or by radiation through air. In either case, it may presentperformance problems for adjacent equipment. EMI and RFIare sometimes considered as separate entities, but manycompanies and organizations tend to combine these terms intoone. By definition, EMI and RFI have their own individualfrequency ranges, which heavily overlap.
Europlug - This is an international plug used by manyEuropean countries. It is the common name for the CEE 7/16 2.5amp, Class II plug.
Farad - A unit of electrical capacity
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Ferrite bead - An iron component that when attached around apower cord will serve to help prevent spurious signals transmittedby conductance and radiation. Ferrite beads have been found toreduce EMI and RFI noise especially when affixed to both ends ofthe power cord.
Filler - Term used with cable. Filler consists of a non-conductingmaterial such as jute, plastic strands, or plastic fibers. Filler is usedto assure the cable maintains a circular appearance during theextrusion process. It also provides tensile strength to the cableassembly. Tensile strength is important in cable that may be placedin situations where large amounts of stretching may occur. Thefiller helps to prevent the cable from over stretching and strandsfrom being pulled to a breaking point.
Flanged Inlets, Outlets - A flanged nylon housing that permitsmounting in a panel on the front of the equipment for an electricalinlet or outlet, that is held in place by screws and bolts.
Frequency - This is measured in Hertz and is the number of timesan alternating current repeats its cycle in one second. The standardinternational frequency is 50Hz and the standard North Americanfrequency is 60Hz.
Fuse - Supplementary circuit protection device in which aconductive element is designed to melt and open the circuit in theevent a fault occurs that exceeds the time-current characteristic forthat condition. The common sizes for fuses are 1/4 x 1 1/4-inchfuses (North American) and 5 x 20mm fuses (international andNorth American).
Gauge - This is an indication of the physical size of a wire or thewire diameter specifications. The number of the gauge is in aninverse relationship to the size of the wire. So the larger the wirethe smaller the number of the gauge will be.
Ground - This is a complete circuit accomplished through aconductive connection between an electrical circuit and the earthor another large conducting body.
<HAR> - A marking on cable to indicate that it is harmonizedcable. This means that it was made in Europe. Harmonized cableis made in Europe to the HD 21 and HD 22 standards. Cable madeelsewhere can be made to these standards, but will not be allowedto display the harmonized mark.
Harmonized Cable - Cable that meets the requirements ofHarmonized Documents HD-21 or HD-22 and will carry at leastone safety agency approval that is recognized by other Europeansafety agencies.
Hi-pot - A test designed to determine the highest potential thatcan be applied to a conductor without breaking through theinsulation.
High Voltage - Generally this is considered any operating voltageover 600 volts.
Hospital Grade - See Medical Products
HPN - Parallel Heater Cord, typically Neoprene-insulated twoconductor.
IEC 60320 (Formerly IEC 320) - International ElectrotechnicalCommission standard that applies to a series of connectors, plugs,outlets and inlets designed for use on electrical or electronicequipment such as portable equipment such as computers,printers, and medical equipment.
IMQ (Instituto Italiano Del Marchio Di Qualita) - Test andapproval agency for Italy.
Inlet - The input power connection on equipment. Inlets are themale connection devices that provide access for electricity toenter the equipment. An example would be the IEC 60320 C14inlet.
Inner Conductor Colors -Function North American (NA) International (ICC)Hot Black BrownNeutral White BlueEarth (ground) Green Green w/ yellow stripe
Insulation - Insulation is any material having high resistanceto the flow of electric current. It protects the inner conductorsof an electrical cord.
IP (Ingress Protection) Rating - Indicates the degree ofprotection provided by the enclosures of electrical equipmentand devices, according to IEC 60529. The types of protectioncovered by this system of classification are: a) protection ofpersons against contact with or approach to live parts andagainst contact with moving parts inside the enclosure, andprotection against entrance by foreign bodies (dust, filings,etc); and b) protection of the equipment inside the enclosureagainst harmful intrusion of water.
ISO (International Standards Organization) - Qualitystandards writing agency of standards for business,government, and society.
Jacket - This material that covers over wire and cable providesprotection and additional insulation. It is usually extrudedplastic or elastomer.
· S - Designated for heavy duty, rubber insulated portable cord. Stranded copper conductors with separator and individual rubber insulation. Two or more color-coded conductors cables with filler, wrapped with separator and rubber jackets overall, 600v.
· SEOW-A - Extra hard service cord. Thermoplastic 600 volt, weather resistant for outdoor use.
· SJ - Junior hard service rubber insulated pendant or portable cord. Same construction as SJT except insulation and jacket is thermoset (rubber) 300V.
· SJO - Same as SJ but neoprene, oil resistant compound out jacket, 300V, 60°C.
· SJT - Designated for junior hard service thermoplastic or rubber insulated conductors with overall thermoplastic outer jacket, 300V, 60°C.
· SJTO - Same as SJT but oil resistant thermoplastic outer jacket.
· SJTW - A hard service cord. Thermoplastic constructed jacket.300V, weather resistant for outdoor use.
· SPT-1 - Thermoplastic constructed, parallel jacketed, 300V, 2 or 3 conductor, 18 gauge.
· SPT-2 - Same as SPT-1, but heavier construction, 18 - 16 gauge.
· SPT-3 - Same as SPT-2, but heavier construction, 18 - 10 gauge.
· SO - Designated for a 600 Volt senior service, oil resistant neoprene jacket cord. Same construction as type S except for neoprene jacket.
· SO-W - Heavy Duty SO-dual rated type W.
· ST - Hard Service Cord, jacketed same as type S except all plastic construction, 600V 60 degrees to 105 degrees.
· STO - Same as ST with oil resistant outer jacket (600V).
· STW - Same as ST with extra hard service material. Weather
126
· SV - Designated for vacuum clear cord, 2 or 3 conductor, rubber insulated. Overall rubber jacket. For light duty in damp location. 300V, 60°C.
· SVT - Same as SV except all plastic construction. With or without 3rd conductor grounding purposes only. 300V, 60- 90°C.
· VW-1 - This is a rating established by UL for wire and cables that pass a specifically designed vertical flame test for flammability. It is formerly designated as FR-1.
JIS (Japanese Industrial Standards Committee) - Developsstandards and provides certification testing in Japan.
Kilowatt - (kW) A unit of power equal to one thousand watts.
Line Cord - This is a cord that ends with a plug at one end and isutilized for connecting equipment to a power outlet.
Locking plugs - Configuration of blades on a plug that allowthe plug to be locked into a socket, making the connectionimmovable to force. The NEMA pattern and numbering systemplaces an L in front of the numbers, to indicate a lockingconfiguration. For example, a NEMA L5-15P is a locking plugrated 15amps at 125VAC.
Medical Products - These are products specificallymanufactured for use in hospitals, doctor and dentist offices, or inhome treatment of patients used in the patients care or recovery.Medical products, including cord sets, fall under specialstandards and have special requirements in some applications.
Multiconductor - This is an indication that there is more thanone conductor within one cord or cable complex.
N.A. - North American color code on the inner conductors(black, white, green). See Inner Conductor Colors.
NEMA - National Electrical Manufacturers Association (NEMA) isa standard setting agency for the United States and supplies aforum for the standardization of electrical equipment, shapespublic policy, gathers, compiles and analyzes statistics and datain the marketplace, and monitors legislation that may affect theindustry.
Neoprene - This is a synthetic rubber that has good resistance tochemical, oil and flame and is also called Polychloroprene.
Nylon - This is an abrasion resistant thermoplastic with effectivechemical resistance utilized for cable and wire jacketing, wiringdevices, connectors and plugs.
OD - Abbreviation for outside diameter.
OHM - Unit of electrical resistance. Resistance of a circuit inwhich a potential difference of one volt produces a current ofone ampere.
OSHA (U.S. Occupational Safety and Health Administration)This agency was organized to reduce workplace safety hazards.Its equivalent in Germany is TUV.
Outlet - An outlet is a female connection that supplies access toelectricity from a source of power.
Panel-mount - Component is mounted to a panel or theequipment, as opposed to cable. Panel-mounting can be screw/flange-mount or snap-in mounting styles.
PC-Board Mounting - PC board tabs (small, flat pins) extendingfrom the back of the component’s contact pins. The component isplaced on the PC board, the contact pins are inserted into thefootprint, and solder is applied to make the electricalconnection.
Pin and Sleeve - This refers to a receptacle, connector or plugthat has round pins or sleeve type contacts.
Plug - A plug is the cable mount portion of an electricalconnection or male contact device and has pins or bladesprotruding from the face. It is also called an attachment plug.
PVC - Polyvinyl chloride compound used in the thermoplasticSVT, SJT ...
Polarization - There are two types of polarization to considerwhen dealing with international plugs and sockets: 1) PhysicalPolarization—Characteristics of a plug that only allow the plugto be plugged in a certain way. 2) Electrical Polarization—Referring to the Line and Neutral being specified as alwaysbeing connected to a specific pin location.
Polarization of European Plugs and Sockets - Some Europeanplug and socket patterns pose a problem in regards topolarization. Plug and socket patterns such as the Italian andthe Schuko are physically unpolarized, meaning they can beplugged into a socket in more than one manner. The “Schuko”or Continental European standard is especially difficult, as it isnot electrically polarized either, meaning the standardsgoverning this pattern do not indicate a specific location for thehook-up of line and neutral. The French/Belgian pattern allowsfor physical polarization of the plug, but once again thestandard does not indicate a specific electrical polarization. Inother words, the socket may be wired either way. Whendesigning for export, it is very important to take into accounthow unpolarized plug and socket patterns will affect yourequipment.
Power Supply Cord - An attachment plug molded to a length offlexible cord. May also include a molded strain relief orterminations on the opposite end of the plug.
Quail Electronics - The best source for power cords.
Quick Disconnects - Blade type connectors, which mate witha simple, formed sheet metal part. Most electrical componentsare manufactured with the male half of the quick disconnect.The female half is normally mounted on the connecting lead.
Rack-mount Power Distribution Units - A product line that isa division of our Accessory Power Strips. Our PowerDistribution Units are 19" rack-mounting products thatdistribute power to equipment in a rack environment.
Rated Voltage - The maximum voltage at which an electriccomponent can operate for extended periods without undodegradation or safety hazard.
Receptacle - A contact device installed at the outlet for theconnection of a single attachment plug.
Recognition - When UL tests an electrical component, itnormally issues component recognition. This attests to the factthat the agency found the component satisfactory for use in theapplications for which it was designed and manufactured. ULalso lists complete products (such as complete cordsets) andcertain other components.
Retaining Clamp - A mechanical devise used to secure apower cord to a piece of equipment. Typical applicationswould include medical equipment where an accidentaldisconnect could compromise a patients health.
RFI - See EMI/RFI.
Ribbed - Outer jacket is striated with ribs.
ROJ - Remove Outer Jacket.
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SA (Standards Australia) - Australian body responsible for writingand publishing Australian standards. Works closely with SNZ(Standards New Zealand) on many standards.
Schuko - Trade name commonly applied to the ContinentalEuropean plugs and sockets. This word is derived from the word“shutzkontact,” which means protection contact or protected plug.Click for more information on Continental Europe.
Shielded-type cable - A cable in which the conductors areenclosed in a conducting envelope constructed so thatsubstantially every point of the surface of the insulation is atground potential or at some predetermined potential with respectto ground under normal operating conditions.
“Splash resistant” socket – Socket covered with a spring-loadedflip-lid to protect the electrical outlet. These “splash resistant”sockets are suited for environments with airborne dirt andsplashing liquid. They can be mounted on machinery used in areaswhere dust or by-products of manufacturing may come in contactwith a machine-mounted socket without fear of harming orobstructing the socket.
Strain Reliefs - The main function of a strain relief is to protect theelectrical connection and circuitry inside equipment. It alsorelieves strain or pressure on the outer jackets of the cable. Strainreliefs can be a part of a molded plug or connector, or a separatecomponent. The body clamps onto the power cord, and thenconnects firmly to the equipment panel. Strain relief componentsare used primarily in power cord applications where crimping,molding, or hand assembly can mount strain reliefs. They come ina variety of sizes, shapes, colors, and styles.
Strip - To remove insulation from a cable.
Socket - A socket establishes an electrical connection with plugsthrough tension connections. These could be metal contacts bent toreceive the blade or pin or spring loaded.
Temperature Rating - The maximum temperature at which theinsulating material may be used in continuous operation withoutloss of its basic properties.
Terminal - Any device attached to the conductor by crimping,soldering or welding.
Terminal block - This component is used to join wires together tomake electrical connections. The blocks are designed to fit wherespace is limited. The different parts of the terminal blocks are theinsert, screw, and wire protector. The insert is where the wire isplaced. It is located underneath each “chimney.” The screws arelocated in each chimney. When the screws are tightened down onthe wires, the wire protectors enhance the electrical connections.
Termination - Components that are molded, wired, or crimpedonto the ends of power cords or cable. Some terminations include:straight blade and locking plugs and connectors, international andhigh power plugs and connectors, IEC 60320 connectors, ring andspade terminals, straight- and flag-style quick disconnects, andultrasonic welding. Quail Electronics, Inc. carries a large selectionof terminations to add value to a customer’s request.
Tinned - Silver-white, ductile metal used to coat copperconductors, especially when solder termination is to be used.
Three-phase - This is an electrical circuit that holds three lines anda ground or three lines, a neutral and a ground. The three lines are120¼ out of phase with each other.
Tolerance - The acceptable deviation from specification.
Transformer - Device used to isolate circuits and step up or stepdown voltage to a usable level for the equipment. Transformerstransfer energy between the primary and secondary usingmagnetic field coupling.
TUV (Technischer Uberwachungs-Verein) - German basedInternational Testing and Certification organization. Itsequivalent in the United States is OSHA.
UL® (Underwriters Laboratories) - This non-profitorganization administrates a rigorous schedule of testsdeveloped for electrical and electronic materials. It is U.S.based and sets standards and tests electrical equipment forsafety, and is the equivalent of CSA.
“Universal” Jumper Power Cords - These interconnectiondevices are used in applications where the power sourceconnection is an IEC outlet device. The male IEC plug canmake the connection for power. A jumper power cordapplication would include multiple pieces of equipmentworking together to accomplish one task. The jumper powercord extends from the power source to the accessoryequipment. A jumper cordset works like a jumper power cord.The difference is a connection device on both ends of thecable instead of just the plug end. Universal cable is used inthe jumper power cords and cordsets assemblies.
VDE (Verband Deutscher Electrotechniker) - The Germannational testing agency. VDE is the most common Germanapproval found on components. VDE also does some standardswriting for Germany.
Volt - Unit of measurement for electrical power. The symbolforvolts is V.
Voltage - Measurement of power flowing through aconductor. Designated as Electromotive Force (emf). Thesymbol for voltage is VAC.
Voltage Rating - This is the maximum voltage that can becontinuously applied to a wire in conformance to standards orspecifications.
Watts - Unit of measure for actual power used by a piece ofequipment. VxA=W
Wire - This is any piece of flexible slender metal that ranges inapproximate size from a large piece that is difficult to bend toa fine thread. It could also be several wires that are twistedtogether or wires that are insulated.