Practical Exercise 1 Process Using a 'block Flow Diagram', delegates will develop a Process Flow Diagram and process description. From these the delegate will then develop the PID and functional specification. Practical Exercise 2 Electrical Using the PID provided, the delegate will develop load lists, single line diagrams and
FUNDAMENTALS OF ELECTRICAL DISTRIBUTION FIGURE 7: SINGLEPHASE, THREEWIRE (1φ3W) SYSTEM Although the modern singlephase system uses three wires, it is singlephase, not threephase. It actually consists of three wires coming into the house: two hot wires and one neutral wire.