Que sont les raccords électriques?

2026-03-08

                                                       

                                                                        Que sont les raccords électriques?
 

En termes simples, les raccords électriques servent de "squelette et de joints" du réseau électrique, reliant les conducteurs, les isolateurs, les tours et d'autres équipements pour assurer la transmission sûre et fiable de l'électricité. La plupart des raccords subissent des forces de traction importantes pendant leur fonctionnement, tandis que certains doivent également maintenir un bon contact électrique. Même un seul raccord endommagé peut provoquer des pannes de ligne, ce qui rend leur qualité et leur installation appropriée essentielles pour une fourniture d'électricité en toute sécurité.

 

Quels sont les produits inclus dans les raccords électriques?

 

Les raccords électriques sont disponibles en de nombreux types avec des applications diverses. Ils peuvent être principalement classés par fonction et structure comme suit :

 

1. Pinces de suspension : Aussi connues sous le nom de raccords de support, elles suspendent principalement des conducteurs (ou des fils de terre) sur des cordes isolantes de suspension. On les trouve couramment sur les tours droites.

2. Pince de tension : Aussi connue sous le nom de pinces sans issue, elles fixent les extrémités du conducteur à la corde d'isolateur de tension, supportant la tension totale du conducteur ou du fil de masse.

3. Raccord de connexion : Utilisé pour relier les isolateurs en cordes et relier les raccords les uns aux autres, supportant principalement des charges mécaniques.

4. Raccord d'épissage : Spécialement conçu pour épisser divers conducteurs nus et paratonnerres. Il doit supporter la même charge électrique que le conducteur et supporte généralement la majeure partie de la tension totale du conducteur ou du paratonnerre.

5. Raccord de protection : Utilisé pour protéger les conducteurs, les isolants et d'autres équipements, tels que les amortisseurs de vibrations (empêchant les vibrations des conducteurs), les entretoises (maintenant la séparation entre les conducteurs divisés), les anneaux d'égalisation de tension et les contrepoids.

6. Connecteur de borne : Connecte principalement les conducteurs de barres omnibus dans les sous-stations. Les matériaux comprennent des connecteurs de borne de transition en cuivre et des connecteurs de borne en aluminium.

7. Raccord de barre omnibus : Fixe, suspend et soutient les barres omnibus rigides ou flexibles dans les équipements de distribution.

8. Raccords de haubans : Utilisés pour connecter, sécuriser et ajuster les haubans sur les tours, tels que les tiges de maintien, le démontage du dessus du poteau, les poignées de haubans, les plaques de maintien et les isolateurs de haubans.

 

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De plus, en fonction des scénarios d'application, les raccords électriques sont classés en raccords de ligne (pour les lignes de transport aériennes) et raccords de sous-station (à utiliser dans les sous-stations).

 

L'importance de sélectionner des raccords électriques de haute qualité

 

Le fonctionnement sûr et stable des systèmes d'alimentation dépend directement de la fiabilité de chaque composant. Par conséquent, lors de la sélection des raccords d'alimentation, assurez-vous qu'ils sont conformes aux normes internationales ou nationales pertinentes (telles que GB, IEC, ASTM, etc.), possèdent une excellente résistance mécanique, conductivité et résistance à la corrosion pour résister à diverses conditions climatiques et environnementales dans des régions comme l'Afrique et l'Amérique du Sud.

 

--- Nous espérons que cet article améliorera votre compréhension des raccords électriques. Si vous recherchez un fournisseur fiable pour les raccords dans les projets électriques en Afrique ou en Amérique du Sud, nous (Weichite Power Technology Co., Ltd.) proposons une large gamme de raccords électriques haut de gamme et de solutions intégrées qui répondent aux normes internationales. Contactez-nous pour plus d'informations sur les produits et un support technique.

 

 

 

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