Building Definition Language

A Utility System is a network that generates, receives, stores, distributes, converts, measures, controls, or discharges an engineering resource.

Utility Systems may include:

electrical power;

potable water;

wastewater;

stormwater;

ventilation;

heating and cooling fluids;

refrigerants;

gas or fuel;

fire-suppression media;

communication services.

Every Utility System shall define:

System ID;

resource Type;

source;

sinks or consumers;

distribution network;

Components;

Utility Cartridges;

Interfaces;

Connections;

direction of transfer;

capacity;

operating limits;

isolation points;

measurement points;

dependencies;

safety requirements.

Example:

utility_system Potable_Water_System {

resource: potable_water;

source: @Municipal_Water_Connection;

distribution: @Potable_Water_Network;

];

];

}

Utility topology shall support flow-direction and isolation analysis.

A Utility System shall distinguish:

available capacity;

allocated capacity;

required capacity;

reserve capacity;

degraded capacity.

Cross-connections between incompatible resources shall be prohibited through typed Interface and network rules.