What type of stoppings should be used to prevent short-circuiting in airways?

In underground mining operations, the effectiveness of air distribution in airways is crucial for safety and ventilation management. Incombustible stoppings are specifically designed to prevent the passage of air and minimize the risk of short-circuiting. They are made from materials that do not support combustion, which not only helps in maintaining proper airflow patterns but also enhances safety in terms of fire risk management.

Using incombustible materials ensures that the stoppings are stable and can effectively seal off areas without the risk of ignition, thus preventing airflow from taking unintended routes. This is particularly important in maintaining the integrity of the ventilation system and ensuring that fresh air is directed to where it is needed the most, while also keeping potentially hazardous conditions controlled.

Other types of stoppings may not offer the same level of safety or effectiveness in preventing short-circuiting. Temporary stoppings could be more prone to failure or may not provide a durable seal. Electrically resistant stoppings are utilized for specific electrical safety purposes but do not necessarily address airflow issues. Adjustable stoppings, while useful for altering airflow, might not provide the permanent seal required to manage airflow effectively in all circumstances.