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
- Type B2: CO, organic vapors
- Type AX: H₂S, ammonia
- Capacity: 30-60 min
- DGMS Approved
- Monthly cartridge change
🫁 Self-Rescuers
- 30-min Oxygen chemical type
- Dräger Oxy or MSA
- Carried by every workman
- Monthly function test
- Activation: Pull pin + shake
🎒 SCBA Sets
- 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
- Gas Alarm Drill: 1% CH₄ simulation
- Fire Drill: CO detection scenario
- Evacuation: Self-rescuer activation
- Rescue Team: SCBA deployment
- Communication: Siren + tele-talker test
- 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
| Level | CH₄ % | CO ppm | Action |
|---|---|---|---|
| Alert | 0.5-1.0 | 25-50 | Increase ventilation |
| Warning | 1.0-1.25 | 50-100 | Stop hot work |
| Danger | >1.25 | >100 | EVACUATE |
⚠️ 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
0 Comments