Independence of ventilation control and risk control

[CohenLabPrinceton]

a) A SINGLE FAULT CONDITION shall not cause the simultaneous failure of:

• [ ] 1) the ventilation‐control function; and

• [ ] 2) the corresponding PROTECTION DEVICE.

b) A SINGLE FAULT CONDITION shall not cause failure in such a way that a failure of:

• [ ] 1) the ventilation‐control function and the corresponding MONITORING EQUIPMENT is not detected, or

• [ ] 2) the ventilation‐control function and the corresponding ALARM SYSTEM is not detected

[sneakers-the-rat]

need to know what

• SINGLE FAULT CONDITION,
• 'ventilation-control function',
• 'PROTECTION DEVICE', and
• 'MONITORING EQUIPMENT' mean to answer this