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2 - #14 daisy chained to each recept.

1 - 30X15A=450 - 450A CB

I'd make them all home runs and size everything to your local code. Since we have no clue where you live, how can we help you?

Wait, let me polish up my crystal ball:

sorry. know if i said it is an industrial shop and folow the CEC,would that help?

British Standard 7671 applies, however the 15A round-pin socket is usually only found in special applications these days, like in theatres.

If this is a residence, you can put them all on one circuit. 1 20 amp breaker using #12 conductor. I would not do it that way. Suggest maybe 10 on a circuit. Come back and tell me if is is a residence.

Quote AP#1 " 2 - #14 daisy chained to each recept.

1 - 30X15A=450 - 450A CB"

Surely you jest. I can see it now. A 450 amp breaker with 2 #14 conductors connected. I don't believe that would work. I don't think the set screw on the breaker would tighten down enough on the #14 conductor to make a connection.

Better check this idea again.

You need to determine the anticipated loading on each of the receptacles and then go from there. Without the loading you expect per receptacle, you can not decide how to power these receptacles.

sorry. know if i said it is an industrial shop and folow the CEC,would that help?

As described so far, I don't think this will satisfy the CEC, or any other Code worthy of the name.

Tell ya what. Draw up the dimensions of where you want them, the location of your panel. The size of the panel. The rating of the panel, AMPS. How many open CB spots you have and we can take it from there. 10:1 says you're going to be installing a sub panel and several breakers.

You can arrange either in radial or ring circuits depending on load connected. group of small loads could be connected in ring. Larger loads should be connected radially with CB for each item. Consider diversity when sizing cable and CB.

Southern Building Code sez 12 fixtures per breaker circuit and a dual plug outlet counts for 2 so you need to know whether you mean 30 single outlets or 30 dual outlets.

Outlets come in two amperages, 15 and 20. For 12 individual outlets of the 15 amp variety use all 14 guage wire hooked into a 15 amp circuit breaker.

For 12 individual outlets of the 20 amp variety use all 12 guage wire and hook them into a 20 amp outlet.

You're not allowed to mix wire sizes, outlet sizes or breaker sizes anymore in the US.

Thank god I'm in the UK.

BS1363 fused plugs have served us well since 1942. 30 outlets would, using common sense be split in two rings each with a 32A MCB.

According to BS7671-2008 they all could go on the same ring so long as the area covered doesn't exceed a certain area (can't remember what it is at the moment).

100m².

Thought it was, but didn't want to say so in case you shot me down in flames

Okay unless you know what each one of those outlets will have plugged into them to dedicate circuits for. Then you use averages. The average is about 1.5 amps for most general devices. So that 6 duplex receptacles on one 20 amp breaker ran with #12 wire. There are some that you may want to run dedicated. Those by sinks or faucets on ground fault circuits. Those that are on kitchen cabinets that may have microwave plugged into them. Microwave draw more then the average current. Receptacle under the sink for garbage disposal. One that may appear to be for a frig in a kitchen area. Those to the exterior of the building never know what current the device plugged into them will draw. Any other areas where you may have a device used that generally will pull more then the average.

Unless your local code says different.

Under the CEC (Canadian Electrical Code) here is what you need to do.

Determine the load required by what it is you intend to plug into the receptacles.

You really need to understand the demand that the devices you intend on powering present. It will do you no good at all to connect 5 receptacles to a 15 amp breaker if you intend on pulling 1000w (1000w / 120v = 8.3A) from each receptacle.

Once you know the demand expected you can then power the receptacles in groups that make sense for the anticipated load.

If you do not know or can not get the information on the anticipated load, the CEC allows you to group up to 12 outlets (a single duplex receptacle counts as 1 outlet) together on a 15A circuit using 14 gauge copper conductors. This anticipates a maximum loading of 1A (120w) per outlet. See CEC rule 8-304.

The maximum loading on circuits feeding 5-15R receptacles (the standard 120v 15A receptacle) is determined by the rating of the over current devices powering the circuits and by the type of conductors used. Unless you are using 100% rated breakers, go with 12A maximum loading on a 15A circuit. You may not feed 5-15R receptacles with a breaker larger then 15A.

A 5-15R receptacle may NOT be powered by a 20A circuit in Canada. If you wish to use 20A circuits, then you must use a 5-20R "T-Slot" receptacle with 12 gauge copper conductors.

Keep in mind possible voltage drop issues. The CEC allows for no more then 5% voltage drop overall (from supply service demarc point to the point of utilization) and no more then 3% in a feeder or branch circuit. See rule 8-102.

Finally... go get a qualified electrician licensed in Canada to help you with this.

I miss that. Use to running commercial there we always used 5-20R's. He did say it was industrial shop. But never did we max out the circuit with receptacles.