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Grounding for a Fire alarm panel

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Dengineer

Member
Location
new york
Occupation
Electrical Engineer
Hello all,

I have a questions about chassis grounding a fire alarm panel.

I have a single phase 208V fire alarm panel that is tapped before the main service switch via a disconnect. Now I was told that I need to ground the chassis and wanted to know if I could either ground it to the main grounding electrode or just ground it to the structural steel.
 
don_resqcapt19

don_resqcapt19

Moderator
Staff member
Location
Illinois
Occupation
retired electrician
Dengineer said:
Hello all,

I have a questions about chassis grounding a fire alarm panel.

I have a single phase 208V fire alarm panel that is tapped before the main service switch via a disconnect. Now I was told that I need to ground the chassis and wanted to know if I could either ground it to the main grounding electrode or just ground it to the structural steel.
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That disconnect is a service disconnect and should have a main bonding jumper. The EGC for the fire alarm panel will originate in that disconnect.
 
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