i have a circuit having 20 amps branch breaker, the voltage is 220 single phase, how many sockets i can connect to it. i need to know the quantity once the sockets are connected in loop.

 

As many sockets as you wish, just be sure the total load (plugged-in devices) is unfer 20 amps.

 

^^^ Yes .... the use of electrical sockets has changed greatly in modern times .... very rarely do they take high power ... mostly used for charging phones , low current TVs , and other low consumption devices ... So have as many as you like , in the very rare event of exceeding 20A ... that's 4.4KW !! it will only trip a circuit breaker.

 

As above but there may be local rules on this kind of thing so you should check regulations in your area.

 

Note that each outlet receptacle should be rated to whatever the circuit breaker is rated to, so that the breaker is protecting each receptacle against overload. You don't want a 15A receptacle 'protected' by a 20A breaker. Same for the wiring, of course.

 

Note that each outlet receptacle should be rated to whatever the circuit breaker is rated to, so that the breaker is protecting each receptacle against overload. You don't want a 15A receptacle 'protected' by a 20A breaker. Same for the wiring, of course.

Unless all the plugs have their own fuse, of course.
(UK local regulation)

 

Unless all the plugs have their own fuse, of course.
(UK local regulation)

Wow, really? Never heard that.

 

UK has what is known as a Ring Main, fed from a 30amp breaker, all sockets are rated at 13a and contain a fuse according to load.
The circuit cable leaves the service panel and picks up all outlets and returns to the panel.
Max.

 

And that kind of thing is why I suggested checking local regulations.
TS is apparently from Qatar and I have no idea what their domestic mains wiring regulations are.

 

Note that each outlet receptacle should be rated to whatever the circuit breaker is rated to, so that the breaker is protecting each receptacle against overload. You don't want a 15A receptacle 'protected' by a 20A breaker. Same for the wiring, of course.

That's not entirely true, at least in the USA. It's very common to have 15 amp receptacles on 20 amp / 120 volt branch circuits.

The answer to the OP's question will depend on the country he is in and is probably dependent on local codes also

 

That's not entirely true, at least in the USA. It's very common to have 15 amp receptacles on 20 amp / 120 volt branch circuits.

That's true, for a circuit with multiple outlets. Other parts of the code protect against actually plugging a 20A load into a 15A rated receptacle by mistake.

 

That's not entirely true, at least in the USA. It's very common to have 15 amp receptacles on 20 amp / 120 volt branch circuits.

I also have 15 amp outlets on a 20 amp service. Have seen that all my life. Only time I've seen 20 amp outlets has been in professional kitchens where someone may plug in some kind of industrial appliance that actually takes 20 amps. There isn't one thing I own that takes more than 15 amps. My wife's hair dryer is rated at 1500 watts on high. That's 13.6 amps at 110 VAC or 12.5 amps at 120 VAC. Her biggest kitchen appliance draws only 12 amps, so any typical load in the average US home is not likely going to exceed 15 amps.