Podcast
Questions and Answers
How often must the owner, agent or manager examine the rate of emission of inflammable gas?
How often must the owner, agent or manager examine the rate of emission of inflammable gas?
Which of the following materials is prohibited from being stored in mines unless in a fire-proof receptacle?
Which of the following materials is prohibited from being stored in mines unless in a fire-proof receptacle?
What must be done with greasy or oily waste in workings belowground?
What must be done with greasy or oily waste in workings belowground?
What is required of every instrument used for detecting and measuring inflammable gas?
What is required of every instrument used for detecting and measuring inflammable gas?
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What action must be taken when there is a serious fire danger in a mine?
What action must be taken when there is a serious fire danger in a mine?
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Who is responsible for classifying the coal seams according to their degree of gassiness?
Who is responsible for classifying the coal seams according to their degree of gassiness?
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What must the owner, agent, or manager do if the gassiness of a seam increases?
What must the owner, agent, or manager do if the gassiness of a seam increases?
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How long does the Regional Inspector have to verify and investigate the degree of gassiness after being informed of an increase?
How long does the Regional Inspector have to verify and investigate the degree of gassiness after being informed of an increase?
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If precautions cannot be observed within twenty-four hours due to practical issues, what can the Regional Inspector do?
If precautions cannot be observed within twenty-four hours due to practical issues, what can the Regional Inspector do?
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What action should be taken if the rate of emission of inflammable gas decreases?
What action should be taken if the rate of emission of inflammable gas decreases?
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What can the Regional Inspector do at any time regarding gassy seams?
What can the Regional Inspector do at any time regarding gassy seams?
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What is the initial time frame for the owner, agent, or manager to inform the Regional Inspector about an increase in gassiness?
What is the initial time frame for the owner, agent, or manager to inform the Regional Inspector about an increase in gassiness?
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What is required if a seam's gassiness decreases?
What is required if a seam's gassiness decreases?
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Study Notes
Coal Seam Gassiness Classification
- Coal seams are categorized by gassiness by the Chief Inspector or an Inspector.
- If a seam's flammable gas percentage or emission rate increases, the owner/agent/manager must notify the Regional Inspector within 24 hours.
- They must also follow all precautions for the higher gassiness level.
- The Regional Inspector verifies and re-classifies the seam within 30 days.
- A request to delay precautionary measures for up to 60 days may be permitted by the Regional Inspector.
- If gas levels decrease, the owner/agent/manager informs the Regional Inspector.
- The Regional Inspector re-classifies the seam within 30 days, and previous precautions remain in effect until then.
- The Regional Inspector can re-classify a seam at any time.
- Owners/agents/managers must record daily gas emission rates and percentages (per regulation 169).
- Gas detection instruments must be approved by the Chief Inspector.
- Gas detection instruments and analysis systems must be calibrated regularly by an approved agency.
General Fire Precautions
- No flammable materials (oil, grease, canvas) are allowed except in fireproof receptacles.
- Greasy waste in underground workings must be removed regularly to the surface.
- Opencast and workshop grease/oil waste must be disposed of safely.
- No naked flames near timber, wood, or combustible materials.
- Every mine must have fire detection, control, and extinguishing arrangements.
- Mine operators must take measures to prevent, detect, and fight mine fires.
- Operations must cease, and workers evacuated to safety, if a fire poses a severe threat.
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Description
This quiz covers the classification of coal seams based on their gassiness levels, including regulations for reporting and re-classification by inspectors. Participants will learn the necessary precautions and procedures associated with varying gassiness levels in coal seams. It is essential for owners and managers to understand these regulations to ensure safety and compliance.
