WiscElectrician
Member
- Location
- Kenosha
Hello all,
We are currently installing a hydrogen fuel cell system as a trial run at one of our campuses. The 2500psi tanks will set next to a compressor, which then charges to 6500psi tanks that fuel the interior cells. Here is the question, per their requirements all of there components must be connected together to an electrode of not more than 25ohms to ground.
My thoughts were to hop off of the building riser loop which is bonded to the buildings steel around the entire building. There engineers then asked me to prove to them that the quality of that ground is not more than 25ohms to ground and were unwilling to take a reading from equipment to the building. Now I know you can check ground quality with the 4 point test prior to energizing the system ( because it could be completely isolated ). But what can I do to show them that a 12" iron PIV loop is a pretty impressive electrode?
Any help would be appreciated.
Thanks
We are currently installing a hydrogen fuel cell system as a trial run at one of our campuses. The 2500psi tanks will set next to a compressor, which then charges to 6500psi tanks that fuel the interior cells. Here is the question, per their requirements all of there components must be connected together to an electrode of not more than 25ohms to ground.
My thoughts were to hop off of the building riser loop which is bonded to the buildings steel around the entire building. There engineers then asked me to prove to them that the quality of that ground is not more than 25ohms to ground and were unwilling to take a reading from equipment to the building. Now I know you can check ground quality with the 4 point test prior to energizing the system ( because it could be completely isolated ). But what can I do to show them that a 12" iron PIV loop is a pretty impressive electrode?
Any help would be appreciated.
Thanks