You can get a Plan Review by an architect at the Fire Marshalâs Office, and they have satellite offices all over the state.
Primary flow element. A primary flow element is the element of a flow meter that serves to indicate the quantity or velocity of flow. For example, in the case of an orifice flow meter, the differential pressure across the orifice plate is the primary flow element.
1 Primary Metering is only available for individual members.  All of the electrical facility downstream of the metering point are owned, operated and maintained by the member. The Member is responsible for purchasing all existing electrical facilities on the Memberâs side of the primary metering installation(s).