Insulator PDF
What is distribution deadend terminal insulator？
A distribution deadend terminal insulator plays an important role in the electric pole line terminal, it have two important usage, support and insulating. Deadend insulator or terminam insulator requires high manufacturing process and technique, in order to meet specific environment of the specific needs of different regions , dead end insulator should have good stain resistance, insulation properties.
Difference of distribution deadend terminal insulator, strain insulators normal insulators:
Deadend insulator in nature has no difference from ceramic guy strain insulator and normal insulators. They can be the same code number. For porcelain deadend insulator and strain insulator has six pieces, for intermediate normal insulator string, this only need three pieces. Each terminal insulator string of number of pieces is a little more than insulators in the middle. For composite deadend insulator, it will be longer in section length than normal insulator. In ANSI standard, ANSI C29.13, there is special requirement for deadend insulator, clevis and tongue type with specific technical requirement.
In long distance , turning point, door side, starting zone of protection area, curved area and so on, normally will use composite distribution deadend insulator to support. The insulator will prevent the line from curve camel -line phenomenon .
How many post type distribution deadend terminal insulators needed on Cable terminal pole?
In general , the use of post insulator is on 10KV line or under 10KV, the number of deadend insulator is one high voltage insulator per phase, that is each line should be installed one terminal post insulator.