Transmission Line Survey span weight span wind span definition:-
Introduction:- This is the definition of the Transmission line survey wind span and weight span. In the transmission line survey, we used common terms likes what is the weight span wind span, Hot curve, cold curve etc.
Sometimes we face problems with some terms of words in the Transmission line Survey.
Today Everybody people know about the Height voltage of the transmission line. The transmission line is a High voltage Electric line. It comes from Power Generation Plant to Sub-station or Sub-station to Sub-station in the state, districts, and country. The Transmission line survey span construction is a big chapter.
Transmission Line Survey spans are defined as Wind span, Weight spa, section length, Hot curve Cold curve etc. Transmission Line Survey
The Definition of some Type of Span bellow;-
WEIGHT SPAN:-
The distance from the low point sag (Null Point) of one span to the low point sag of the next point. So we describe the defined in Transmission Line Survey wind span weight spans in Weight span, Wind span, Sum of adjacent span, Normal span, section length, etc.
This span is divided into two types (a)Hot Curve and (b) Cold Curve.
*Image of Cold curve and Hot curve:-wind span
(a) Hot Curve:-
The curve in condition of maximum Sag point (Null point) and the load Tension of conductors. Normally we consider 85 degree centigrade
(a) Hot Curve :-
The curve in condition of maximum Sag point (Null point) and the load Tension of conductors. Normally we consider 85 degree centigrade
Wind span weight span Null point
(b) Cold Curve:-
NULL POINT:- The Null point is the lowest point of the middle sagged Conductor between the towers.
NORMAL SPAN:- The normal Span is the distance between any two Towers.
Section Length:- Angle tower to angle tower total span length. It may be Single span or more span length.
Example;- We say 3 numbers Normal tower https://en.hdec.kr/en/tech/project.aspx?bizIntro=112&searchType=ENERGY placed in the section of Two Angle tower.
