I think someone already post the guide on claiming bitcoin cash on electrum. But ok here is the guide.
1. move your BTC from your electrum addy to new electrum addy.. but make sure to keep private key of the old one or wallet seed.
2.download coinomi wallet (this wallet was i used)
3.import your private key in coinomi wallet
4.then Go to BCC in coinomi and sweep wallet.
5.wait and BCC will appear shortly.
This not my personal guide. Credits to theymos or hostfat.