Anybody heard of DCSP and DCRP?

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In a couple of weeks (at the ripe old age of 64), I'm taking some welding classes at Central Texas College in Killeen.  Their instructors are great, and the facilities are very impressive.  One thing I noticed in their student study modules is that they use the terms "DCSP" (DC straight polarity) for  DCEN and "DCRP" (DC reverse polarity) for DCEP. Does anybody out there actually use these terms?  I've always just seen DCEN and DCEP.Last edited by Ruark; 09-05-2015 at 12:53 AM.-RuarkLincoln 3200HDHobart Stickmate LX235TWECO Fabricator 211i
Reply:YupCongrats on taking the welding course, it should improve your welding ability immensely.  It's never too late to learn to do something right."The reason we are here is that we are not all there"SA 200Idealarc TM 300 300MM 200MM 25130a SpoolgunPrecision Tig 375Invertec V350 ProSC-32 CS 12 Wire FeederOxweld/Purox O/AArcAirHypertherm Powermax 85LN25
Reply:The terms are obviously synonymous and one needs to learn that "straight polarity" is EN and "reverse" is EP.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:EN stands for Electrode Negative, EP is Electrode positive. Also shown as DC+ and DC-Tiger Sales:  AHP Distributor    www.tigersalesco.comAHP200x; AHP 160ST; MM350P,  Spoolmatic 30A; Everlast PowerTig 185; Thermal Dynamics 60i plasma.  For Sale:  Cobra Mig 250 w/ Push-pull gun.  Lincoln Wirematic 250
Reply:When I was taught stick welding back in 1974, the only terms that we used were DC straight and DC reverse polarity.I still use those terms today.Rich
Reply:Mnemonically.......DCSP, DCEN, DC-,  Straight Polarity =>  SENatorDCRP, DCEP, DC+, Reverse Polarity =>  REPresentative"Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi
Reply:We got them last semester, but mostly as a historical artifact (and test/interview question) than anything we're likely to actually use.Currently working as a Paralegal, but still interested in hobby welding.Miller Bobcat 225ntOne- Character Fractions: ¼ ½ ¾ ⅛ ⅜ ⅝ ⅞
Reply:I first learned to weld in 1975 after joining the Navy and the terminology of the time was Straight and Reverse polarity.   The memory trick we were taught to remember which was which was Reverse Polarity = Rod Positive.  Also at that time you had to have color vision in order to be accepted for the HT (Hull Tech) rating because of the previous method of identifying welding rods by a series of colored dot markings on the bare grip end.   All most all the rods we used back then had the numbering system for identification like are currently used (6010, 7018, 11018, etc.) but I still remember seeing some rod with colored dot markings.Now that I've thought about that I've become curious as to just when the numbering system for the identification of welding rods first began to be used.   Any body have any info on that?Last edited by HT2-4956; 09-06-2015 at 08:30 AM.
Reply:In my case Heliarc or TIG welding came late in life. I'm not sure whether one terminology is applicable with TIG, the other with SMAW or stick. My old stick machine, very beat up says reverse polarity, straight polarity. TIG is described most often as EP or EN.An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.
Reply:I know what the terms mean, I just hadn't heard them before.  I thought everybody used DCEP/DCEN.-RuarkLincoln 3200HDHobart Stickmate LX235TWECO Fabricator 211i
Reply:According to this book, 1940:https://books.google.com/books?id=rJ...201940&f=falseAWA A5.1, 1940http://pubs.aws.org/p/440/a51a51m194...ing-historical"USMCPOP" First-born son: KIA  Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder
Reply:I am old enough to remember that Straight Polarity and Reverse Polarity were the terms used when I was trying to learn the technical aspects of welding after having been introduced to the basic "hands on" techniques of O/A and stick welding.I think DCEN and DCEP are better terms, they are more descriptive on the polarity involved, however I still think in terms of SP and RP."The reason we are here is that we are not all there"SA 200Idealarc TM 300 300MM 200MM 25130a SpoolgunPrecision Tig 375Invertec V350 ProSC-32 CS 12 Wire FeederOxweld/Purox O/AArcAirHypertherm Powermax 85LN25
Reply:A couple of things I find notable is all the comments about DCSP/RP being older, more traditional terms, and here's a top notch welding school using them with all these new students.  DCEP/EN isn't mentioned anywhere in their course materials.  Would you consider this a negative, or a positive?-RuarkLincoln 3200HDHobart Stickmate LX235TWECO Fabricator 211i
Reply:Originally Posted by RuarkA couple of things I find notable is all the comments about DCSP/RP being older, more traditional terms, and here's a top notch welding school using them with all these new students.  DCEP/EN isn't mentioned anywhere in their course materials.  Would you consider this a negative, or a positive?
Reply:Originally Posted by MinnesotaDaveI consider it trivial. Each method, DCSP, DCEN, DC- are equivalent and therefore the argument for or against is unnecessary.In my opinion.
Reply:Originally Posted by OscarYeap, I agree.  Boring thread, but not as boring as the "what are you paying for argon" threads