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Interpreting Single and Double Arrows on Electricity Network Maps: Differences Explained

kolonw 46287 13
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  • #1 11759499
    kolonw
    Level 2  
    Posts: 2
    Rate: 2
    I have one small question... What does it mean when there are one or two arrows on the map on the mains? What is the difference?
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  • #2 11759805
    zbich70
    Level 43  
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    What map is this?
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  • #3 11759807
    Łukasz-O
    Admin of electroenergetics  
    Posts: 21783
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    Maybe a colleague can provide more details, some attachment?
    Geodetic map, single-line diagram? Arrows are used in many cases.
    I suspect you mean the markings on the poles, but that's just my guess.
    Interpreting Single and Double Arrows on Electricity Network Maps: Differences Explained

    Interpreting Single and Double Arrows on Electricity Network Maps: Differences Explained
  • #4 11760872
    TWK
    Electrician specialist  
    Posts: 2326
    Help: 220
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    I suspect that it is about the basic map (and maps for design purposes) and therefore I suggest reading the K1 manual - it can be found in many places on the Internet. There is a specification of what the "arrows" on the poles mean and when to place them.
  • #5 11761496
    kolonw
    Level 2  
    Posts: 2
    Rate: 2
    Yes, arrows on the poles.
    In fact, in this case it was an orthophotomap with an overlay of weapons, but it will probably be the same as on the main one.
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    #6 11762279
    TWK
    Electrician specialist  
    Posts: 2326
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    kolonw wrote:
    basically in this case it was an orthophotomap with an overlay of weapons, but it will be the same as on the main one
    Well, as I wrote before, I encourage you to read the K1 manual - there are even specific thicknesses of lines for these arrows depending on the map scale.
  • #7 11772570
    cacodaemon
    Level 11  
    Posts: 11
    Rate: 2
    You have 2 high voltage poles on the plot shown, to determine what power you need to send photos of the whole poles and insulators.
    Possibly grid locations.
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  • #8 11772817
    zbich70
    Level 43  
    Posts: 17116
    Help: 1164
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    cacodaemon wrote:
    to determine what power you need to send photos of entire poles and insulators.

    You can tell by the appearance of the pillars power . :D
  • #9 11772940
    pit455
    Level 14  
    Posts: 77
    Help: 6
    Rate: 28
    cacodaemon wrote:
    You have 2 high voltage poles on the plot shown, to determine what power you need to send photos of the whole poles and insulators.
    Possibly grid locations.
    .

    And how do you know he has such poles as he has not provided any map?
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  • #10 11794523
    Langi_84
    Level 11  
    Posts: 23
    Help: 2
    Rate: 7
    Since when do poles have power?
    Only the voltage level, the material of the pole, the layout of the conductors and the year of construction of the line are important. No more data needed.
    Arrows can simply indicate the direction of the line.
    A map scan would explain a lot what a colleague is asking about.
  • #11 11794582
    Łukasz-O
    Admin of electroenergetics  
    Posts: 21783
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    cacodaemon wrote:
    You have 2 high voltage poles on the plot shown, to determine what power you need to send photos of the whole poles and insulators.
    Possibly the locations of the mains.
    And I have a question how does the colleague know what poles the author has on the plot when he has not mentioned anything about it. A glass ball?
  • #12 11794974
    zbich70
    Level 43  
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    Langi_84 wrote:
    Arrows can simply indicate the direction of the line.

    Depends on what you mean by "line direction".
    Only the numbering of poles.
    Because, apart from "radial" networks, it has nothing to do with the direction of energy flow.
  • #13 11795603
    Langi_84
    Level 11  
    Posts: 23
    Help: 2
    Rate: 7
    Generally, the line indicates the direction in which the wires run to the next pole. In this case, we have corner columns, at the bend of the line. The number of arrows indicates the voltage level. One arrow means LV, two arrows MV or HV, in this case (photo of my colleague Łukasz-0) 99% of them are two lattice poles of the HV line. There are few cases of MV lines on lattice poles.
    As for the numbering of sites, any map other than the map received from the ER will not contain reliable information, and in most cases there will be no such data. Anyway, the pole number alone will not help much, the line number should also be placed.
  • #14 11795735
    TWK
    Electrician specialist  
    Posts: 2326
    Help: 220
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    Langi_84 wrote:
    two SN arrows
    According to K1, there is an arrow and a dash for SN.
    zbich70 wrote:
    Depends on what you mean by "line direction".
    According to K1, this is the direction of the wires attached to the pole, not the direction of the energy flow.
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Topic summary

✨ The discussion centers on the interpretation of single and double arrows on electricity network maps, specifically regarding their meaning in relation to voltage levels and line direction. Single arrows typically indicate low voltage (LV) lines, while double arrows signify medium voltage (MV) or high voltage (HV) lines. The arrows represent the direction of the wires attached to the poles rather than the energy flow direction. Participants suggest consulting the K1 manual for detailed specifications on the markings and their applications in various map types, including orthophotomaps and geodetic maps. The conversation also touches on the importance of pole characteristics and the necessity of additional context, such as map scans, to provide accurate interpretations.
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