-30-
If the grounding pole of the buildings is independent with each
other, the measurement of grounding resistance of each grounding
pole as below:
4. Application in gas station grounding system
In the environment where full of explosive gas, such as gas sta-
tion, oil field, oil sink have to use explosion proof type.
Base on JJF2-2003<<Grounding Type Antistatic Device Test
Specification>>, gas station mainly need to test the grounding re-
sistance and connect resistance of the facility shows below.
The meter has to obey the requirement of
GB3836-2000<<Electrical Equipments Used in Explosive Gas En-
vironment>>
Grounding resistance of oil tank
Grounding resistance of load or unload place
Grounding resistance of tanker
Connect resistance of transport flexible piper
of tanker
B type has already pass the authentication of anti-explosion, the
symbol is Exia ⅡBT3. The anti-explosion qualified number is:
CE082010. It can be used in the environment relevant to flamma-