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Substation Equipment: Suspension Insulators

Suspension Insulators
An insulator type usually made of porcelain that can be stacked in a string and hangs from a cross arm on a tower or pole and supports the line conductor. Suspension insulators are used for very high voltage systems when it is not practical or safe to use other types of insulators. They have an advantage in that one or more of the insulators in a string can be changed out without replacing the entire string.

Figure 1. Suspension insulators
Figure 1. Suspension insulators

Figure 2. Suspension insulators
Figure 2. Suspension insulators
Figure 3. Suspension insulators
Figure 3. Suspension insulators
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