Electrical Engineering Question

installation
ɪnstəˈleɪʃ(ə)n/
noun
noun: installation; plural noun: installations

1.
the action of installing someone or something, or the state of being installed.
"the installation of a central heating system"
synonyms: installing, install, fitting, putting in, putting in place;
insertion;

attachment
"the installation of a central heating system"
swearing in, induction, instatement, inauguration, investiture, appointment;
ordination, consecration;
enthronement, crowning, coronation
"the installation of the new chancellor"

2.
a large piece of equipment installed for use.
"computer installations"
synonyms: equipment, machinery;
unit, appliance, fixture, piece of equipment
"the computer installation was new to the company"
a military or industrial establishment.
"nuclear installations"
synonyms: base, camp, station, post, depot, centre, facility, establishment, premises;

informal: outfit, set-up
"a local army installation"
an art exhibit constructed within a gallery.
"a video installation"