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Were you arrested by the police? Any charges?

If this was a purely internal matter between the school and you (say, they suspended you for a few days), then it will not affect your immigration status,
 
No I am not arrested but yes I am suspended but they are first suspended me for 5 days to investigate the matter and now they are suspending me for more 5days to investigate the incomplete investigation.
 
No I am not arrested but yes I am suspended but they are first suspended me for 5 days to investigate the matter and now they are suspending me for more 5days to investigate the incomplete investigation.

As long as they don't kick you out of school for the whole semester (thus invalidating your study permit), this will not have any immigration consequences.

If they do suspend you for the whole semester or more, then you're not going to be a full-time student anymore and will probably need to change to visitor status and then again apply for a study permit once they allow you back.
 
No I am not arrested but yes I am suspended but they are first suspended me for 5 days to investigate the matter and now they are suspending me for more 5days to investigate the incomplete investigation.

How exactly did you "accidentally turned on the fire alarm"? Given the investigation and suspension, it's more likely that you did it on purpose or you did something else you shouldn't have that caused it, like starting a fire or smoking.

If so, you could certianly be expelled, especially if the fire department responded. That is a huge expense.