▶ Industrial gas detector should be installed in business sites and detector should be sustainably managed using measuring gas and if household gas detector is installed, it should be replaced once per year.
▶ Pressure regulator should be installed to countermeasure decompression and abnormal changes in gas pressure.
▶ Check if there are blue prints of gas pipe route and locations of various emergency valve closing equipment of gas using facilities within the business site.
▶ Check if there are measures to prevent corrosion of gas pipes.
* If test box for galvanic node is installed, there should be location floor plan.
* Degree of galvaanic anode must be sustainably managed by measuring potential of Test Box once/quarter.
* When managed by supplying external power supply, drop in vlotage should be checked sustainably.
▶ In the piping diagram of gas using facilities, check if contact area with pipes with other purpose are insulated.