Caja de conexiones

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Ejemplo de una caja de conexiones:
(1) Vista superior con conectores ciegos con rosca (2) Vista superior de la caja de conexiones con tapa (3) Vista lateral de la caja de conexiones con chiqueadores

Cualquier conexión realizada en un sistema eléctrico debe ser accesible para servicio en el futuro o para solucionar problemas, pero debe protegerse contra accesos o daños innecesarios. Este es el papel que desempeña una caja de conexiones en un sistema eléctrico, proporcionando una ubicación para conexiones seguras y protegidas entre circuitos, pero también puede usarse para:

  • To provide a location to make a transition from one wire type to another.
  • To provide an intermediate point in a conduit or section of wire to make feeding wire through a conduit easier.

Characteristics

There are many different designs and sizes of junction boxes because they are used for so many different purposes.

Material

A junction box may be made of metal, plastic or fiberglass.

Size

A junction box should provide ample working space and enough room to leave excess wire for thermal expansion/contraction or in case of errors.

Weather rating

Junction boxes are produced for every weather rating.

Knockouts

Junction boxes may come with pre-fabricated openings that can be used to easily bring conduit into the box or they may require the creation of appropriately sized and located openings upon installation

Security

Some junction boxes may require special tools to open them or can even be locked to prevent unnecessary access.

Notas/referencias