Sweeping and importing are essentially the same thing. The only difference is that the sweep process skips the process of manually importing the wallet and it just sends all the coins to a new wallet.
1. Sweep or import and send your Bitcoins to a new wallet using Electrum. You will have the recently created wallet with BTC and your old one that still has BCH.
2. Download Electron Cash and import your paper wallet (that still has BCH). From there, send it to the wallet you want or keep it there.
if i sweep/import BTC from that paper wallet do i still have same ammount BCH there ?
If you sweep/import the paper wallet with Electrum, it will only send out your Bitcoins. The BCH will stay there.
To move the BCH, you will need a compatible wallet - like Electron Cash.
Thank you for quick reply.
So what i wrote will work fine and secure?
When i sweep my privet key from paper wallet to Electrum and send BTC to Electrum wallet -
I steel have my BCH balance on my paper wallet i sended BTC befour?
Do i have to wipe Electrum from my PC for installing Electroncash and transfering BCH from same paper wallet to electroncash wallet ?