Appareillage et protection

LBAJI electrical equipment illustration for Electrical Cabinets And Enclosures

Armoires et boîtiers électriques : guide

Electrical cabinets and enclosures protect and organize switchgear, controls, terminals and wiring. Material, ingress protection, heat removal, internal separation, cable entry and maintainability must be selected from the equipment and environment, not appearance. For related planning, see the distribution panels…

LBAJI electrical equipment illustration for Low Voltage Distribution Board

Plate-forme de distribution basse tension : Guide

An electrical low voltage distribution board receives power from an upstream source and divides it into protected outgoing circuits. Depending on size and standard, the equipment may be called a panelboard, distribution board, switchboard, main low voltage distribution board or…

Boîtes de distribution d'électricité : Guide

Un coffret de distribution électrique reçoit une alimentation électrique et la répartit dans des circuits branchés protégés grâce à des disjoncteurs, des bus, des bornes et un boîtier. La sélection commence par la tension, la phase, la charge, la vitesse de courant, les pannes…

Panneau de distribution 125V DC : Guide

A 125V DC distribution panel distributes branch circuits from defined positive and negative DC rails. The panel rating, feeder, return conductor, grounding, breaker family, available fault current and enclosure must all be verified. “125 V” describes the nominal circuit voltage;…

Boîte combinée à 1000 V CC : Guide

Une boîte combinée à 1000 V CC collecte les circuits photovoltaïques avant un convertisseur ou un alimentateur de collection à 1000 V CC. Dans cette classe de tension, la coordination des isolations, l’interruption des arcs, la distance de jeu, la distance de sécurité, la polarité et les surtensions…

LBAJI electrical equipment illustration for 33kV GIS Switchgear

Dispositif de protection GIS 33 kV : Guide

33kV GIS switchgear is a medium-voltage gas-insulated assembly for switching, protection, isolation and distribution at 33 kV. The primary conductors, busbars and switching devices are enclosed in grounded compartments…

LBAJI electrical equipment illustration for Complete Guide to Ring Main Units

Guide complet des unités principales de raccordement

Ring main units (RMUs) in electrical distribution are compact medium-voltage assemblies used to switch, protect and sectionalize ring or radial feeders. An RMU normally combines load-break switches, an earth switch,…

LBAJI electrical equipment illustration for 120V AC Distribution Panel

Panneau de distribution 120 V AC : Guide

A 120V AC distribution panel distributes single-phase branch circuits from a defined line-to-neutral or line-to-line source. The panel rating, feeder, neutral, grounding, breaker family, available fault current and enclosure must all be verified. “120 V” describes the nominal circuit voltage;…