Hi,
I had my BTC in a MyCelium wallet. I transferred my BTC to Kraken after the fork. After having made sure that they have arrived at Kraken I then installed Electron Cash and when it first started I selected 'I already have a seed' and I entered the seed of my private key from MyCelium. That gave me access to my BCCs. So they're now in Electron Cash but I can't do much with them ...
Do also check out this thread:
https://bitcointalk.org/index.php?topic=2058473.0