Learning Schematics

[Jenners]

Hello Everyone
I am studying at a community college in Minnesota, USA. I am having trouble with reading schematics. Is there an interactive course (CD, DVD) program that you guys can agree on? And is schematics and wiring diagrams difficult for other people to grasp? Thank you in advance. Jenners

[Brian_UK]

Hi and congrats on your first post.

Are you asking about schematics for electrical services or mechanical services or both/all/everything ?

[Jenners]

Looking for electrical,all, everything..We study from the Thompson/Delmar Learning manuals (Electricity for Refrigeration, Heating and Air Conditioning). Was hoping their was another avenue or method to learn this. Thanks

[Brian_UK]

You might like to have a look through these pages...

http://www.beforethearchitect.com/Sch-CS5cPLMB.htm

[wambat]

A good interactive CD is"Refrigeration Basics III at:
www.refrigerationbasics.com

[Jenners]

Thanks guys for the tips..I really enjoy this website and the way you treat the new guys. I have been watching and learning for awhile now...and will continue to do so....

[absolute-zero]

Hello Everyone
I am studying at a community college in Minnesota, USA. I am having trouble with reading schematics. Is there an interactive course (CD, DVD) program that you guys can agree on? And is schematics and wiring diagrams difficult for other people to grasp? Thank you in advance. Jenners

Hi, Jenners

Electrical schematics are simply drawings that use standard symbols to represent various pieces of equipment such as power isolators, circuit breakers, fuses, relays, contactors, motors etc, which are joined up using lines to represent the wires that connect the bits together. There are a lot of industry standard symbols and rules for the interconnection of equipment, and for earth connections, emergency stop circuits etc. In order to understand and interpret circuit schematics and equipment wiring diagrams, you must first study and learn the common symbols and wiring rules. There are ISO standard symbols (International Standards Organisation), and these can be found in any manufacturer's catalogue for common control equipment. (Siemens, Telemecanique, Allen Bradley etc)
There are also industry standard colurs for the wiring for different voltages, i.e. 3 phase ac, single phase 110 volts ac control voltage, 24 volts dc control etc. Standards vary between Europe and USA, but if you know one set you will be able to interpret the rest fairly easily. There is no magic wand, you have to study and learn. Most electrical drawing software packages (Autocad etc)have built in symbols for all the common types of equipment. Some drawing packages use different coloured lines for different voltage wiring, but the colours in the drawing do not reflect the colour of the wire that is actually used in the system wiring. Standards and practices have changed over the years, and a circuit drawing done by hand on a drawing board 30 years ago will be completely different from modern practices. There is no substitute for experience when faced with such old drawings.

Here is a link to FSU, i have used this place for resources in the past.
https://hvacinstitute.ferris.edu/src...ist.php?skip=0

I do remeber them having a interactive program on wiring shemes and diagrams.

There are other learning or teachings aids that I have used in the past as well.

Edison Pro for an example: Will give you the ability to build circuits on a electronic bread board and then convert to wiring sheme with all symbols.
http://www.freefunfiles.com/software.../edison-4.html

There is also Tina Pro demo software similiar to edison, but gives you scenarios as a skill builder. trouble shooting, bugged circuits and est.

http://www.electronics-lab.com/downl...004/index.html

Good luck in your quest to become a strong electrical troubleshooter, through learning to read scemes and diagrams.

Regards A-Z

[nike123]

Looking for electrical,all, everything..We study from the Thompson/Delmar Learning manuals (Electricity for Refrigeration, Heating and Air Conditioning). Was hoping their was another avenue or method to learn this. Thanks

I just uploaded this 6 part book about electricity. It is 13,3 Mb, so give it time.

http://www.mediafire.com/?4ynln3j2m0n