Figure 1-12.--DANGEROUS! BEWARE! Shipboard ungrounded electrical distribution systems

Figure 1-12.--DANGEROUS! BEWARE! Shipboard ungrounded electrical distribution systems are DEADLY.

actually physical components, but are inherent in the

Representative values of a large operating system can

design of electrical equipment and cable.

vary widely, depending on the size of the ship and the

number of electrical circuits connected together.

The value of the capacitance generated between

the conductor and ground is determined by the radius

Figure 1-12, view B, also shows the capacitance

of the conductor, the distance between the conductor

of the generator to ground, the capacitance of the

and the bulkhead, the dielectric constant of the

distribution cable to ground, and the capacitance of the

material between the two, and the length of the cable.

load equipment to ground. As stated before, these

Similar capacitance exists between the generator

capacitances cannot be seen, since they are not

1-13