Thanks! But anyone can tell me what kind of MCB I must use for this
cable? May be 32 Amps or lower rate?

""" I want to use multicore cabel for domestic instalation ,but i dont

have 2,5 mm cable.
But I have only 4 core by 1.5 mm. Can I join the cores 2 by 2 to reach
a beter ampacity?
And what MCB for this combination? The cable marker is - H05 V V - F """