Mechanical and electrical construction 6
moore05
Responses6.docxResponses
I D
Why is conduit used or sometimes required?
Conduit is a rugged protective tube through which insulated conductors are pulled. Metal conduit can be used to shield sensitive circuits from electromagnetic interference, and also can prevent emission of such interference from enclosed power cables. Non-metallic conduits resist corrosion and are light weight, reducing installation labor cost.
Respond:
What is determined by ratings on a receptacle?
A receptacle is a contact device installed for the connection of plugs and flexible cords to supply current to portable electrical equipment. Ratings on a receptacle determine the number of contacts and the configuration in which the slots are positioned in the receptacle. There are a large number of configurations and diagrams for receptacles encountered in residential construction work.
Respond:
Why are GFCI’s used and how do they work?
A ground fault circuit interpreter (GFCI) is a fast-acting receptacle that detects low levels of leakage current to ground and opens the circuit in response to the leakage. GFCI’s provide greater protection than standard or isolated ground receptacles. They provide protection for humans against electric shock by providing the alternating current flow resistance path.
Respond:
DG
What is determined by ratings on a receptacle?
Rating determine the number of contacts and the configuration in which slots are positioned in the receptacle. There are many configurations and diagrams for receptacle encountered in residential construction work. They are designed for straight blade or locking type plugs. Locking type receptables are more common in commercial and industrial applications than in residential work.
Respond:
Why are GFCI’s used and how do they work?
A ground fault circuit interrupter is a fast-acting receptacle that detects low levels of leakage current to ground and opens the circuit in response to the leakage. GFCI’s do no protect against line-to-line contact. GFCI protect the following areas such as bathrooms, swimming pools, residential garages, or anywhere electrical circuits can meet water.
Respond:
Why does voltage drop in a circuit?
Voltage drop occurs when there is a loss of voltage through the circuit. When drops occur, lights can flicker, or bulbs can burn out causing the load to work harder with less output.
Respond:
M U
What is determined by ratings on a receptacle?
The ratings of a receptacle help establish rules over how many contact points and how these contact points are positioned within the receptacle. These receptacles are created to accept locking type or single blade plugs that can be unique to certain countries as well. All of these details should be highlighted on the electrical plans so that they are properly installed in a residential or commercial property.
Respond:
Why are GFCI's used and how do they work?
A ground fault circuit interrupter is a receptacle that compares the current on both sides of the circuit to ensure that they are safe from any possible electric shocks. These are especially important to use in areas where they can be exposed to moisture, as water is a very good conductor of electric energy.
Respond:
Why does a voltage drop in a circuit?
The main reason that voltage usually drops in a circuit is that the circuit becomes overloaded with extra connections or a power source that takes the capacity of that series over the top. When this happens there will usually be flickering or dimming of lights which indicates that the capacity of the terminal has been exceeded.
Respond:
Responses
I D
Why is conduit used or sometimes r
equired?
Conduit is a rugged protective tube through which insulated conductors are pulled.
Metal conduit can
be used to shield sensitive circuits from electromagnetic interference, and also can prevent emission of
such interference from enclosed power ca
bles. Non
-
metallic conduits resist corrosion and are light
weight, reducing installation labor cost.
Respon
d
:
What is determined by ratings on a receptacle?
A receptacle is a contact device installed for the connection of plugs and flexible cords to supply current
to portable electrical equipment.
Ratings on a receptacle determine the number of contacts and the
configuration in which the slots are positioned in the receptacle.
There are a large number of
configurations and diagrams for receptacles encountered in r
esidential construction work.
Respond
:
Why are GFCI’s used and how do they work?
A ground fault circuit interpreter (GFCI) is a fast
-
acting receptacle that detects low levels of leakage
current to ground and opens the circuit in response to the leakage.
GFCI’s pro
vide greater protection
than standard or isolated ground receptacles. They provide protection for humans against electric shock
by providing the alternating current flow resistance path.
Respond
:
DG
What is determined by ratings on a receptacle?
Rating determine the number of contacts and the configuration in which slots are positioned in the
receptacle. There are
many
configurations and diagrams for recept
acle encountered in residential
construction work. They are designed for straight blade or locking type plugs. Locking type receptables
are more common in commercial and industrial applications than in residential work.
Respond
:
Why are GFCI’s used and ho
w do they work?
A ground fault circuit interrupter is a fast
-
acting receptacle that detects low levels of leakage current to
ground
and opens the circuit in response to the leakage. GFCI’s do no protect against line
-
to
-
line
contact. GFCI protect the follo
wing areas such as bathrooms, swimming pools, residential garages, or
anywhere electrical circuits can
meet
water.
Re
s
p
ond
:
Responses
I D
Why is conduit used or sometimes required?
Conduit is a rugged protective tube through which insulated conductors are pulled. Metal conduit can
be used to shield sensitive circuits from electromagnetic interference, and also can prevent emission of
such interference from enclosed power cables. Non-metallic conduits resist corrosion and are light
weight, reducing installation labor cost.
Respond:
What is determined by ratings on a receptacle?
A receptacle is a contact device installed for the connection of plugs and flexible cords to supply current
to portable electrical equipment. Ratings on a receptacle determine the number of contacts and the
configuration in which the slots are positioned in the receptacle. There are a large number of
configurations and diagrams for receptacles encountered in residential construction work.
Respond:
Why are GFCI’s used and how do they work?
A ground fault circuit interpreter (GFCI) is a fast-acting receptacle that detects low levels of leakage
current to ground and opens the circuit in response to the leakage. GFCI’s provide greater protection
than standard or isolated ground receptacles. They provide protection for humans against electric shock
by providing the alternating current flow resistance path.
Respond:
DG
What is determined by ratings on a receptacle?
Rating determine the number of contacts and the configuration in which slots are positioned in the
receptacle. There are many configurations and diagrams for receptacle encountered in residential
construction work. They are designed for straight blade or locking type plugs. Locking type receptables
are more common in commercial and industrial applications than in residential work.
Respond:
Why are GFCI’s used and how do they work?
A ground fault circuit interrupter is a fast-acting receptacle that detects low levels of leakage current to
ground and opens the circuit in response to the leakage. GFCI’s do no protect against line-to-line
contact. GFCI protect the following areas such as bathrooms, swimming pools, residential garages, or
anywhere electrical circuits can meet water.
Respond:
