NZQA Unit Standard 7145:  Design and maintain effective ventilation systems for an underground coal mine – Level 5, Credit 20

Pre-requisites:  Unit 21281, Test for gases, interpret findings, and demonstrate knowledge of follow-up actions in an underground coal mine, or demonstrate equivalent knowledge and skills.

Learning Objectives for an underground coal mine:

• Explain the principles and practices of ventilation.
• Design ventilation circuits, and
• Select and position ventilation control devices.
• Read and interpret a ventilation plan.
• Explain how the ventilation system is established.
• Measure, maintain, and document ongoing air velocity, air quality, and air quantity.
• Measure gases and mixtures of gases and interpret results and explain the effects.
• Explain the primary causes and control mechanisms for fires, spontaneous combustion.
• Explain hazardous atmospheres.