How many computers can I safely connect to an electric outlet?

There are 12 computers in a classroom, but only 2 electric outlets. Can we connect an extension cord to another extension cord?

I'm more concerned about safety. The computers have been running with no problems. The outlet is too far from the computers, that's why we have to use two extension cords/surge protector to be able to reach. How do I find out about amps?

I have 6 computers connected to one outlet and the other 6 connected to the other outlet through 2-6ft surge protectors.

Thank you guys for all the help.

How many computers can I safely connect to an electric outlet?norton ghost

On the back panel of the computer should be a label with the amperage rating of the system. Also check the monitor for it's rating. Add them all up and that will give you a rough idea of how much power you are using on each circuit.

Never exceed 20 amps per circuit. This is the normal max for circuits wired with 12ga wire.

How many computers can I safely connect to an electric outlet?software

*Chuckles* OK%26lt; if they're LAPTOPS they consume about 65 watts of power. In theory, you could connect about 15 of them on each plug.

Two plug in= a total of 2 each, 20 amp circuits, with a 20% safety margin (Per National Electric Code) gives you a total of 32 amps (16 amps) per plug.