Safety Protocols and PPE | Indian Minerology

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Part 7: Safety Protocols and PPE

Key Learning Objective: Master personal protective equipment selection, statutory safety signage, emergency drills, and inspection protocols (CMR 2017 Reg 133-145, MMR 1961).

7.1 Respiratory Protection Equipment

😷 Gas Filters

Gas Filter
  • Type B2: CO, organic vapors
  • Type AX: H₂S, ammonia
  • Capacity: 30-60 min
  • DGMS Approved
  • Monthly cartridge change

🫁 Self-Rescuers

Self-Rescuer
  • 30-min Oxygen chemical type
  • Dräger Oxy or MSA
  • Carried by every workman
  • Monthly function test
  • Activation: Pull pin + shake

🎒 SCBA Sets

SCBA
  • 30/60 min capacity
  • 6-8 bar cylinder
  • Rescue teams only
  • Annual hydrostatic test
  • Low pressure alarm

7.2 Statutory Safety Signage

Sign Type Location Size CMR Reference
⚠️ DANGER
1.5% CH₄		 Face entry points 1m × 0.75m CMR 140
🚨 CAUTION
CO 50ppm		 Substation areas 75cm × 50cm CMR 141
ℹ️ INFORMATION
Self-rescuer station		 Every 300m 50cm × 40cm CMR 142

7.3 Emergency Response Drills

🚒 Quarterly Drill Schedule

  1. Gas Alarm Drill: 1% CH₄ simulation
  2. Fire Drill: CO detection scenario
  3. Evacuation: Self-rescuer activation
  4. Rescue Team: SCBA deployment
  5. Communication: Siren + tele-talker test
  6. Post-drill: Debriefing + Form V-28

Statutory: 4 drills/year + 1 major exercise

7.4 PPE Inspection Checklist

📋 Daily Self-Rescuer Check:

  • Seal intact (no damage)
  • Pin secured
  • Carrying bag condition
  • Expiry date check
  • Weight verification

🔍 Monthly Station Inspection:

  • 50 units per station
  • Function test 10%
  • Inventory register
  • Repair/replacement
  • Form V-29 entry

7.5 Alarm Systems & Communication

🚨 Multi-Level Gas Alarm Protocol

LevelCH₄ %CO ppmAction
Alert0.5-1.025-50Increase ventilation
Warning1.0-1.2550-100Stop hot work
Danger>1.25>100EVACUATE

⚠️ Exam Essential Knowledge:

  • Self-rescuer stations: Every 300m
  • Danger board size: 1m×0.75m
  • Filter cartridge life: 6 months
  • SCBA cylinder test: Annual
  • Drill frequency: Quarterly
  • Form V-28: Drill report

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