What happens if you send BTC to BCH?

Could you elaborate on what exactly occurs when someone mistakenly sends Bitcoin (BTC) to a Bitcoin Cash (BCH) address? I'm curious about the technicalities involved in such a transaction. Are there any safety measures in place to prevent such mix-ups? And if such a transfer does occur, how does it affect the sender and receiver? Could you also explain whether the funds are recoverable in such a scenario and what steps should be taken to address the issue?