Starting another calculator for ranges

I have begun the tasks of making sense out of the rules for ranges in Section 220.55 and Table 220.55. Again, 95 per cent of the time the rules are simple, but a computer program is suppose to be able to do all the problems. For instance how about 25 each 15 kw ranges, 6 stove tops at 3 kw, 10 ovens at 5 kw and 45 ranges at 12 kw, 14 ranges at 6 kw and one range at 20 kw? Now we are talking about some lines of code.

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electrician2.com

Bug in Online Dwelling Unit Calculator at electricalknowledge.com

I went to the electricalknowledge.com "single family dwelling Calculator" and tried it with the NEC Annex D example D1(A) and found it has an error in it. The name alone should tell a person an amateur wrote the program. It should be dwelling UNIT calculator. Anyway, for the 70 per cent calculation for the range neutral load they use 12 KW instead of the demand load of 8 KW. You would think that these people would at least try the examples to debug their programs. This tells me that they aren't good code people, but probably are programmers trying to do code programs.
Merry Christmas!
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electrician2.com

Motor Branch Circuit Calculator

Motor Branch Circuit Calculator
Branch Circuit Conductor Sizing Calculator
Voltage Drop Calculator
Conduit Fill Calculator
Cable Tray Pulling Tension Calculator
Electrical Calculator
Ohms Law Calculator
Power Calculator
All at:
electrician2.com
under the calculator menu
or try:
Calculators

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electrician2.com

Thoughts about some really great electricians

I wonder where they are tonight. Duke Kennedy, Adolph Ike, Pat Harrington, and Gene Gilbert. These weren't just electricians they were giants in the trade. They were the geniuses that I have met over the years, real champion mechanics. I wish we had a club where we could meet, but it is not that way. Just like the military, we all met and did our job and then went our ways, and now they have retired in different parts of the country. I guess I miss the camaraderie, the coffee break shacks and all the bull we talked about mainly politics, sex, and unions. I am into my second month of retirement and I must say it is an adjustment. I miss working, to be honest.

A day of research

I spent the day doing research. I searched and searched at Google. I was surprised that a search for electrician.com comes up with electrician2.com. What's up with these Google guys? As a matter of fact a search for electrician does not come up with electirican.com at all! It was in the top two links for several years. Evidently, Google is on to the Click for Cash marketers and is weeding them out, since electrician.com that I sold is now a click for cash site. My search for electrician2.com now has 2600 pages and is a rising star. It should be with a $100,000 worth of online free calculators readily available. I sure wish I could have had those calculators at my disposal when I was a foreman on several jobs. I had to do all that math by hand and never knew if it was right or wrong. Nothing like being out in a remote part of Alaska in the middle of winter in the cold and blowing snow and having to figure out what size wire to use then drive to a snow banked dock and seeing if you can find it or a substitute. Those were the days, my friends, those were the days. Now the Internet is availble at almost every job shack in Alaska!

Today is the shortest day of the year in North Pole

It was dark for most of the day and -21 degrees F. I got the Christmas and New Year’s cards online and running. Now I need to put the links in at the main page. I am listening to the music juke box at the Christmas card as I type. I sure like that Yanni guy. His music is comforting especially when it is so cold and dark out. I think the dogs like him, too. Other than that it has been a wasted day. I did absolutely nothing of value. Well not quite, the car wouldn't start this AM and I spent about an hour looking for the battery charger. So I hooked up the space heater and the battery charger and waited an hour and it started. The truck is in the repair shop because the heater fan quit two days ago. And it is only 20 below! I don't know what is going to happen if it gets 50 below. Cold weather takes a lot out of people and equipment. Day after day, cold and dark. Why I stay in this forsaken place is beyond me. Oh yes, my parents are buried here, and everyone I know in the world lives here. It is home for me; anyway it is the only home I know. I guess it is like that for lots of people. When you drive through some small town and wonder what keeps it going, I suppose just being a home is a lot of it.

New site for calculators

I have started a new site at http://www.electriciancalculators.com that is already the premiere site for free online electrician calculators. Why premiere? Because no one else is doing it and I was first. My simple voltage drop calculator that I wrote years ago and placed at my old site electrician.com is all over the Internet because I allowed persons to use it. Well they used it and forgot where it came from. I can look at the source code at so many sites and see that they did not even bother to change the variable names. Talk about plagiarism! After writing my article on the mathematics of the offset bend and developing a calculator using my original equations, I started getting email from the Palm guys wanting to sell me their new calculator that allows you to pre cut pipe to 1/16 of an inch and do offset bends and come out right. They practically stole my words word for word. They seem to follow me around and steal my ideas and programs. Anyway, the new site is in the works and has as an index page with a fairly detailed description of the programs and links to them. I need to get back to writing programs and checking out the motor branch circuit program more. These programs do hundreds of thousands of combinations and it takes a lot of time to gain confidence that they work right all the time. I think I will do a load calc program for a single family residence, motor compressor, transformer, RV Park, Mobile Home Park, or welder program next. I wrote an RV Park program that did the sectionalized voltage drop many years ago in MBasic. I wish Webpage calculators could be written in Mbasic, but Mbasic does not work well with forms so I guess I am stuck with JavaScript. I like JavaScript because it so portable and readily available. The Internet changes so fast that by the time you get a program out on a CD or marketed online, it is almost obsolete. The Internet is humming faster and faster and JavaScript allows me to keep up with the hum.

electrical calculators for electricians

http://www.electrician2.com now has 24 free online electrical calculators for conduit fill, voltage drop, power, ohm's law, Table 310.16 for wire size, OCPD, and continuous and noncontinuous loads, and parallel conductors and a motor circuit calculator. 23 of these calculators are written in JavScript and one is in Excel. The 2005 NEC Code is followed with these calculators.

Parallel Conductor Calculator uploaded

I finished the Table 310.16 parallel conductor calculator. It is full of suprises. I also wrote another voltage drop calculator that finds the maximum distance for a given conductor size, per cent voltage drop, and load.

Starting work on Parallel Conductor Calculator

I have begun work on a calculator that finds the amperage, OCPD, equipment grounding conductor size and voltage drop for parallel conductors No. 1/0 AWG and larger. I plan to use this calculator to build a Table for conductor sizes and OCPD's to 2000 amperes that will include the raceway sizes. Of course of even more interest is how cost effective are the different parallel configurations. I have always wanted to know which pipe and parallel configuration for a fixed load is the least expensive and would like to see a comparison chart. I may take it that far. This would require using the Means estimating book to find the labor costs, and of course the material costs vary every day with the price of copper fluctuating like it does.

T310.16 Calculator checked against WireGuide 2005

WireGuide 2005 sells for $199 and is sold by Vision Infosoft. I found several problems with their program.
I downloaded the trial version to check it out against my own program written in JavaScript.
I found these problems so far.

WireGuide 2005 Service/Feeder Calculations

1. 20 ampere and 9 conductors input lists No. 12, rated 14 amperes on 20 ampere OCPD
2. 25 ampere and 3 conductors input lists No. 12, rated 25 amperes on 25 ampere OCPD (No. 12 is not allowed on a 25 ampere OCPD without exceptions)
3. 31 ampere and 6 conductors input lists No. 10 rated 24 amperes on 35 ampere OCPD
4. Only 75 degree C. insulation and terminal temperatures supported. (derating using 90 degree insulation ampacities is not allowed but is a common practice)
5. No provisions for continuous load and noncontinuous load inputs.
6. Only copper donductors are supported.

In my opinion, WireGuide 2005 is not NEC compliant and a warning should be attached to let users know.