2.2.3
Precautions for work in gas hazardous zones
If you do work in a gas hazardous zone, obey the rules that follow to prevent risks of harm or
damage to personal, to equipment, or to environment:
•
Make sure that you have completed the safety training.
•
Make sure that you have the necessary qualification.
•
Make sure that you have the permission of the safety officer.
•
Ask for the aid of one more person.
•
Make sure that the fuel gas system has no pressure.
•
Make sure that the remaining gas in the fuel gas system is replaced with inert gas (for
example nitrogen).
•
Make sure that the airflow is sufficient for the work area.
•
Make sure that related systems are prevented from an unwanted start. Use the lock-out
and tag-out practice.
•
Use a handheld gas detector.
•
Do not use systems and devices that can cause a spark, for example a cigar lighter,
matches, etc.
•
Do not smoke or start a fire.
•
Put on antistatic clothes.
•
Make sure that your safety shoes are in good condition. Steel toe caps can cause sparks.
•
Use only approved tools that do not cause sparks and test equipment that will not cause
an explosion.
•
Do not use digital cameras, mobile phones or other electronic devices (for example
radios, CD
‑
players).
•
Use only intrinsically safe and approved MHSA two-way radios and transceivers.
•
Use only approved light sources (safety flashlights).
•
If you do welding, obey the instructions of the responsible safety officer and the primary
contractor. Make sure that the responsible safety officer does checks during the welding
work.
•
Read and obey the safety procedures for the ship or for the engine room (for example
security plan, warnings, life-saving devices, escape routing, meeting point, gas
hazardous zones, special instructions on the safety notice board).
•
Keep your work area clean. Remove flammable material immediately.
X92DF
AA00-0000-00AAA-012H-A
Operation Manual
Safety precautions and safety rules for natural gas
Winterthur Gas & Diesel Ltd.
- 49 -
Issue 002 2020-08
