Hello,
I haven't claimed my cash from my Electrum wallet till now because i heard all of cash's wallets are suspicious to steel our Privekeys.
After fork i spent 3 BTC from my Electrum wallet, Did my 3 BCC go away by those transactions?
Can i claim my 3 BCC now?
No, your BCC remain on your wallet, only BTC moved. These coins have different chains and they can interact between themselves.
If you afraid to use Electron Cash, I advice to use Coinomi. It's safe and reliable wallet for smartphones. Another trusted wallet where you can take your Bitcoin Cash is BTC.com. But I'm not sure that they allows to import private keys.