Work On or Near Pressurised Gas Mains
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Work on or near pressurised gas distribution mains or piping is high risk construction work needing a SWMS, because a strike or uncontrolled release can cause explosion or asphyxiation.
Why this is high risk construction work
A ruptured gas main can ignite or displace oxygen across a wide area, and the failure is sudden. Locating and protecting the asset is safety-critical.
Because it is one of the 18 high risk construction work categories, a SWMS is legally required before the work starts (your state's WHS Regulations, provision 299; s 299 in NSW), not a nice-to-have.
The controls a SWMS should set out
In hierarchy of controls order, highest first:
- ✓ Locate and prove the gas asset before any excavation or hot work near it
- ✓ Hand-dig or non-destructive digging in the tolerance zone
- ✓ Isolation and purging by the asset owner where work affects the main
- ✓ No ignition sources until the atmosphere is proven safe
- ✓ Emergency response for a release, including evacuation
Trades that do this work
These trades commonly need a SWMS for this category. Each has a trade-specific SWMS:
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