Chassis plug fuses

[amitay3333]

Hii I'm new in the forum and new at building amps, until now I'v been building many pedals but wanted to start experience with guitar amps...
I recently noticed my Marshall mini jubilee got this 230V chassis plug, not a typical plug though an inlet with 2 fuses (not including the HT fuse) stored in it. now my 3 questions are:
1. what the 2 fuses meaning and function?
2. should I use it for my future build? (I'm gonna build Marshall style amp)
3. In my place the outlet rating is 220V and my amp plugs says 230V, so when I'm building my amp is it matter? cuz I understand there isn't such a thing as a 220V power transformers...

[acheld]

1. what the 2 fuses meaning and function?

Hard to say without seeing the data sheet for that socket, but that manufacturer often supplies a spare along with the active fuse in other models.   That would be my answer, and I'm sticking with it.

should I use it for my future build? (I'm gonna build Marshall style amp)

What style of IEC socket will have no effect on your project.  It IS important to have proper mains connection and grounding, but that can done using any number of methods -- from a three wire cord mounted directly to the amp, an IEC socket, an IEC socket with built in fusing, or a Powercon connector.  All are legit, and it is builders choice.

The main thing is to build safe!  Build it as if your daughter is going to use it . . . 

In my place the outlet rating is 220V and my amp plugs says 230V, so when I'm building my amp is it matter? cuz I understand there isn't such a thing as a 220V power transformers...

Hammond does have power transformers spec'd for 220V.

Many builders will ignore the difference. But, if you use a transformer intended for 230 or240v mains, it does mean that your final voltages will be somewhat lower in your amp.  And that's usually just fine.

Best of luck!