What is the meaning of "停電すると使うことができない電話の家庭が多いためです"?

[antiguilty]

Hi, can someone translate the above sentence to me?
From my understanding, is it means that "power failure and the use of phone is not possible, because of a lot of family"?
I know it doesn't sounds right, forgive for my poor Japanese

 

[Mike Cash]

Because there are many families with phones that can't be used in the event of a power outage.

Why do you ask?

 

[antiguilty]

Because there are many families with phones that can't be used in the event of a power outage.

Why do you ask?

Thanks for the translation
I just read this sentence from the news here: http://www3.nhk.or.jp/news/easy/k10013795781000/k10013795781000.html

So, from your translation, if I have a "noun + すると", it means "when"?

Btw, I'm preparing for my JLPT N3 for next year.

 

[Mike Cash]

See explanation here.