Talk to a local electrician or talk to a friend of a friend who is one. This is not something you buy on eBay and do yourself. If you have a 16A breaker for all the outlets in your sleeping room you can use 12.8A of it (to stay within the 80% of the rating). If you need more than that, you could plugin the second power supply/cable in another room.
How much current the SP30 will pull will be clear by next week I guess. At 1200W the Murata PSU is rated 8A @ 200V, there are two.
What are the exact dimensions of the unit, please? D 554 X W 431 X H 88.4 mm?
These seem about right, but you need to add a bit of space for the handles of the PSUs and cabling. About 580mm total length, rest seems right. Add lots of space for air flow, do not obstruct front and back. And expect noise.
Look for a 30AMP outlet. You will usually find this in the kitchen around the stove and various enclaves where you plug in toasters and microwaves. This is where you can run an SP30 via heaviest duty extension cord if you don't want it competing with the blender noise or coffee grinder noise:
15-amp Circuit
Total Wattage Capacity: 15 amps x 120 volts = 1,800 watts
Safe Wattage Capacity: 1,800 watts x 80% = 1,440 watts
Safe Amperage Capacity: 15 amps x 80% = 12 amps
20-amp Circuit
Total Wattage Capacity: 20 amps x 120 volts = 2,400 watts
Safe Wattage Capacity: 2,400 watts x 80% = 1,920 watts
Safe Amperage Capacity: 20 amps x 80% = 16 amps
30-amp Circuit
Total Wattage Capacity: 30 amps x 120 volts = 3,600 watts
Safe Wattage Capacity: 3,600 watts x 80% = 2,880 watts
Safe Amperage Capacity: 30 amps x 80% = 24 amps
Look for a 30AMP outlet.
That's all good and nice for America with 120V or so, but in the civilized world we use something else

He asked if it would work with "230v 50Hz mains socket".
Thanks for all your replies. Yes that's correct, I have got 230v 50Hz mains socket.
In my circuit breaker box, there are few circuit breakers:
For all house Lights 6A On
Sockets in the kitchen 32A On
Socket for the cooker/oven 32A On
Sockets for bedrooms 32A On
Spare 32A Off
Does it mean that for my bedroom sockets Total Wattage Capacity is 32 amps x 250 volts = 8,000 watts (50Hz)?
I would need to use bedroom sockets as kitchen sockets are too far away.
There is only my PC (between 500-800 Watt) and 2 table lights plugged in to bedroom sockets. Ocasionally I also use these sockets for kettle, hairdryer or vacuum cleaner.
If above calculation of 8000 Watt is correct I would have spare at least 6000 Watt, if I use all of the above appliances/devices at once.
It says that SP30's nominal power consumption is 2500 Watt So I guess I could have enough amperage to plug in up to 2 SP30s at once?