Reinforced concrete pole, corner pole, level 3.
The meaning of the tower model and pole section number 1. Tower model In the power transmission line, Chinese pinyin letters and numerical codes are used to represent the tower model. 1. The meaning of various codes (1) The code indicating the classification of the tower use is Z--straight-line tower ZJ--straight-line corner tower N--tension tower J--corner tower D--terminal tower F--branch tower K--transcendence tower Pole tower H - transposition pole tower (2) code indicating the shape of the tower or the arrangement type of conductors and lightning protection wires S - upward type C - wishbone type M - cat head type Yu - harpoon type V - V Type J - Triangle type G - Dry type Y - Sheep's horn type Q - Bridge type B - Wine glass type Me - Door type Gu - Drum type Sz - Upright umbrella type SD - Inverted umbrella type T——Tian-shaped W——King-shaped A——A-shaped (3) code indicating the tower material and structure (i.e. variety) G——Reinforced concrete pole T——Self-standing iron tower X——guy wire Type tower (those without an (5) Code indicating classification. The same type of tower must be classified according to load, and its classification code is represented by the numbers 1, 2, 3... in the corner. (6) Code indicating the height. The height of the tower refers to the distance (meters) between the lower cross arm and the ground, that is, the height is expressed by numbers. 2. Representation method of tower model in engineering (1) Representation method of tower model The tower model consists of the following six parts, line voltage code (kilovolts) usage code type code variety code height (meters) Classification example: 220ZBT1-33 means 220 Thousand-volt linear wine glass-shaped iron tower, the first level, with a title of 33 meters high. Note: For the same line, the voltage level code does not need to be indicated. The reinforced concrete pole model is expressed in the same way as the tower model, and the code for the line voltage is usually not written. For example, NMeG2-21 represents the tension-resistant door-type concrete pole without cable ties, the second level, and the title is 21 meters high. 2. Number of rod segments 1. The numbering method of rod segments is as follows: rod type diameter length standard bending moment/type of rod segment joint type 2. Numbering diameter type of rod section iron parts Explanation: (1) When numbering the tip rod, use the tip diameter as the diameter. (2) Representative symbols of rod types: B - tip rod, D - equal diameter rod. (3) Unit of measurement: length is expressed in meters, diameter is expressed in centimeters, and standard bending moment is expressed in tons*meters. (4) Regarding the type of joints of the rod section and the type of iron parts of the rod section, there are currently two types commonly used, namely: steel plate ring (indicated by 1) and flange plate (indicated by 2).