Ligne 45 KV - (Dechy - Marquion)

### Nombre de pylônes:

43 poteau à 3 Triangles + 9 poteaux métalliques à 3 Triangles + 7 à 3 Triangles + 1 Drapeau + 1 Nappe + 1 à 4 Triangles

## Présentation

La ligne haute tension à 45 kilovolts reliant Dechy à Marquion est une ancienne ligne électrique située dans les départements du Nord et du Pas de Calais en région Hauts de France.

Chargement de la carte...{"type":"ROADMAP","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"mappingservice":"googlemaps3","width":"auto","height":"350px","centre":false,"title":"","label":"","icon":"","lines":[{"text":"","title":"","link":"","strokeColor":"#000000","strokeOpacity":"0.39","strokeWeight":"2","pos":[{"lat":50.362450584014155,"lon":3.1384202089783875},{"lat":50.36241379624379,"lon":3.138127848195764},{"lat":50.3617034123731,"lon":3.1401360502168396},{"lat":50.359510879399366,"lon":3.138564854068453},{"lat":50.357518068606204,"lon":3.1377703585288153},{"lat":50.35492762318291,"lon":3.1371403367609396},{"lat":50.35263078484715,"lon":3.1365847874006247},{"lat":50.34985124000793,"lon":3.1352487494534698},{"lat":50.34797094643349,"lon":3.1343348614675026},{"lat":50.345897901322054,"lon":3.134850268160747},{"lat":50.343571599097544,"lon":3.13537339002965},{"lat":50.34064453529251,"lon":3.136034430149972},{"lat":50.338448072336085,"lon":3.1365341874211383},{"lat":50.33610038894044,"lon":3.1370663321323145},{"lat":50.333189282136615,"lon":3.1377207322631184},{"lat":50.33063141908454,"lon":3.138305519606668},{"lat":50.3283119541526,"lon":3.1388264688534484},{"lat":50.3254795669101,"lon":3.139473650532696},{"lat":50.32243020617143,"lon":3.1401555057648523},{"lat":50.31984823254996,"lon":3.140740137521738},{"lat":50.317585670694044,"lon":3.1389947111843552},{"lat":50.31516232441106,"lon":3.1371402622798383},{"lat":50.31253814441582,"lon":3.1351033842699394},{"lat":50.30946796506978,"lon":3.132736251985393},{"lat":50.306862074649686,"lon":3.130730279274334},{"lat":50.30480839769873,"lon":3.1291263731840724},{"lat":50.30259207176581,"lon":3.1274170055539896},{"lat":50.30028882815363,"lon":3.1257159206492924},{"lat":50.29762899727591,"lon":3.124000794842674},{"lat":50.295011926007696,"lon":3.122317215339545},{"lat":50.29269652466443,"lon":3.12083376279666},{"lat":50.289880388287926,"lon":3.119019255863953},{"lat":50.287541466645735,"lon":3.117509864496699},{"lat":50.28468063534848,"lon":3.115672933838476},{"lat":50.28256519265914,"lon":3.1143203051631696},{"lat":50.280274853568145,"lon":3.1128293165622267},{"lat":50.277742962021996,"lon":3.111198080538089},{"lat":50.2756830761676,"lon":3.1099718002951793},{"lat":50.273554569039895,"lon":3.1081519094314114},{"lat":50.27080481242684,"lon":3.1058420949942533},{"lat":50.26826712616733,"lon":3.10368897305783},{"lat":50.26662053089315,"lon":3.1023722390656694},{"lat":50.263782089367346,"lon":3.1018766143767795},{"lat":50.260516343713874,"lon":3.10108051393597},{"lat":50.257851078117454,"lon":3.1004320806060193},{"lat":50.25482444695209,"lon":3.0996915807291625},{"lat":50.252544966094945,"lon":3.097054745390686},{"lat":50.24972515812009,"lon":3.0938854767224644},{"lat":50.24718020787764,"lon":3.09102577517554},{"lat":50.24502811886607,"lon":3.0885963534937133},{"lat":50.24262404111763,"lon":3.0869747576113005},{"lat":50.24039665438772,"lon":3.085494179898749},{"lat":50.23793975508131,"lon":3.083846190570827},{"lat":50.235708986404354,"lon":3.08236495739751},{"lat":50.233789015676244,"lon":3.081080437631716},{"lat":50.23109297932693,"lon":3.0792874409706528},{"lat":50.22886203505829,"lon":3.077809088756327},{"lat":50.226926104867886,"lon":3.076597552494933},{"lat":50.22525578984095,"lon":3.075561836752203},{"lat":50.223089630041024,"lon":3.0742228289368967},{"lat":50.22087944031405,"lon":3.0728592463517312},{"lat":50.21883941175636,"lon":3.071594471836092},{"lat":50.216286534071344,"lon":3.07003033833837},{"lat":50.216123483185946,"lon":3.0698036916766114},{"lat":50.21599904924062,"lon":3.0697674818549103}]}],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":false,"layers":[],"controls":["pan","zoom","type","scale","streetview","rotate"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"resizable":false,"kmlrezoom":false,"poi":true,"cluster":false,"clustergridsize":60,"clustermaxzoom":20,"clusterzoomonclick":true,"clusteraveragecenter":true,"clusterminsize":2,"imageoverlays":[],"kml":[],"gkml":[],"searchmarkers":"","fullscreen":false,"scrollwheelzoom":false,"locations":[{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EDechy\n\u003C/p\u003E\u003C/div\u003E","title":"Dechy\n","link":"","lat":50.362450584014155,"lon":3.1384202089783875,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EMarquion\n\u003C/p\u003E\u003C/div\u003E","title":"Marquion\n","link":"","lat":50.21599904924062,"lon":3.0697674818549103,"icon":""}]}
## Historique:

Cette ligne à été construite entre 1953 et 1955 pour alimenter en cas de « secours », les machines de Béghin Say. L'entreprise était principalement alimenté par la ligne à 225 KV Gavrelle-Corbehem et accessoirement par la ligne Dechy-Corbehem. La ligne à 45 KV reliant Dechy à Marquion était une "ligne de secours pour Béghin" (qui alimentait Cambrai par la même) au cas où les deux lignes à 225 KV précédemment cités étaient hors tension.

Étant données que l'usine Béghin Say de Corbehem, (devenu Stora Enso en 1998) fut fermée, la ligne a perdu son utilité et a été déposée en 2021 pour réduire l'impact visuel en compensation de la recréation de la ligne Avelin-Gavrelle.

## Description du tracé:

* La ligne débutait à l'ouest du poste électrique de Dechy et se dirigeait assez rapidement vers le sud, passait sur la ligne reliant Saint Just en Chaussée à Douai et la D645.
* Après être passée sur la D643, elle passait sous la ligne à 225 KV reliant Dechy à Gavrelle puis sur le canal de la Sensée avant de le longer jusque vers Arleux.
* Elle longeait ensuite grossièrement le canal du Nord jusqu'au poste de Marquion.