Distribution I

covers both outdoor apparatus insulators and suspension insulators

• SUSPENSION INSULATORS

• POST TYPE INSULATOR

• CAP AND PIN TYPE INSULATOR

2 MAJOR TYPES OF OUTDOOR APPARATUS INSULATOR

• CAP AND PIN TYPE

• PORCELAIN LINE POST

• POST TYPE

• PORCELAIN PIN INSULATOR

-used to support rigid buswork

-normally manufactured from electrical grade wet-process : porcelain

• OUTDOOR APPARATUS INSULATOR

• POST TYPE INSULATOR

• SUSPENSION INSULATOR

used for supporting the bus bars and disconnecting switches in substation

- similar to pin type insulators but has a metal base and metal cap

- porcelain elements are in the form of cones

• POST TYPE INSULATOR

• INSULATOR

• CAP AND PIN TYPE INSULATOR

DIFFERENCES B/W POST AND PIN TYPE

-usually use for 33 kV system

• PIN

• POST

DIFFERENCES B/W POST AND PIN TYPE

usually use for lower voltage and higher voltage

• PIN

• POST

DIFFERENCES B/W POST AND PIN TYPE:

SINGLE STAG

• PIN

• POST

DIFFERENCES B/W POST AND PIN TYPE:

SINGLE STAG AND MULTIPLE STAG

• PIN

• POST

DIFFERENCES B/W PIN AND POST:

Conductor is fixed on the top of insulator by binding

• PIN

• POST

DIFFERENCES B/W PIN AND POST TYPE INSULATOR:

Conductor is fixed on the top of the insulator with help of connector clamp

• PIN

• POST