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The calculated volume of the wiring relative to the volume of the tubing.
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∙ 12y ago
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Is splicing ok in a conduit body?
The conduit body or box has to be clearly marked for its fill capacity for wires or devices. So Long story short, Yes as long as the conduit body is listed for it. If it has no markings then no
Is it permitted to use flexible conduit over 6 feet in length as a grounding means?
No. The new electrical code change does not allow any flexible conduit to be used as a ground means. It is now required to have a green ground wire pulled into the conduit with the other conductors in the flexible conduit. This grounded bonding conductor is not counted as wire fill when calculating the size of the flexible conduit to use
How many number 12 thhn wire can you fit into half inch conduit?
9 - Is this a test answer or do you just want to know for a project you're doing? Take a look at NEC chapter 9 - tables 4 and 5 (in the 2005 edition at least)
Can you use PVC conduit underground?
PVC conduit is recommended for underground installations. Just remember that a ground wire equal to the maximum load current of the device connected at the other end has to be installed. This ground wire is not counted in conduit fill calculations. It has to have a green insulation in colour and be of a continuous length.
What is conduit wiring?
Conduit wiring is synonymous to wires in a pipe.
Can multiple feeders be in same conduit?
Yes they can. If the feeders are of different sizes, then a conduit fill calculation must be made to ascertain that the conduit does not become overfilled. Cross sectional areas of the conductors are found and it is then determined what the conduit cross sectional fill will allow.
Can branch circuits from a panel be pulled in the same conduit if not exeeding the conduit fill requirements?
Yes. The thing that has to be closely watched is the load on the conductors. The conductors will have to be de-rated as the code only gives amperage rating for three conductors in a raceway. So watch the connected amperage to each load and fill the conduit accordingly. This supersedes the conduit fill requirements rule.
What type of conduit is used for 480 volt 3-wire?
Conduit is just a medium to get the wires from one place to another. There is no voltage restrictions in low voltage wiring (750 volts or less). When it comes to conduit fill, electricians are governed by the electrical code conduit fill tables. The conduit is sized to accommodate the conductor size for a specific load.
The calculation used to determine amperage of a conductor based on the total number of conductors in a conduit is called A derating B voltage drop C conduit fill D conductor fill?
derating
Is splicing ok in a conduit body?
The conduit body or box has to be clearly marked for its fill capacity for wires or devices. So Long story short, Yes as long as the conduit body is listed for it. If it has no markings then no
Is it permitted to use flexible conduit over 6 feet in length as a grounding means?
No. The new electrical code change does not allow any flexible conduit to be used as a ground means. It is now required to have a green ground wire pulled into the conduit with the other conductors in the flexible conduit. This grounded bonding conductor is not counted as wire fill when calculating the size of the flexible conduit to use
What is the maximum allowable conductor fill of any trade size conduit used as a raceway?
It depends on the wiring, the current load in the wiring , and the distance. The NEC Code book has the charts for this.And the size of the conduit.
How many number 12 thhn wire can you fit into half inch conduit?
9 - Is this a test answer or do you just want to know for a project you're doing? Take a look at NEC chapter 9 - tables 4 and 5 (in the 2005 edition at least)
What percentage is the maximum allowable conductor fill of any trade size conduit used as a raceway?
It depends on the wiring, the current load in the wiring , and the distance. The NEC Code book has the charts for this.And the size of the conduit.
Can you use PVC conduit underground?
PVC conduit is recommended for underground installations. Just remember that a ground wire equal to the maximum load current of the device connected at the other end has to be installed. This ground wire is not counted in conduit fill calculations. It has to have a green insulation in colour and be of a continuous length.
Can you run two 2 pole single phase circuits in the same conduit?
Yes, this only adds up to four wires. The wire sizing is dependant on the amperage of the two single phase loads. Remember to calculate the conduit fill of the four wires to make sure that you have the correct size conduit for the installation.
What is conduit wiring?
Conduit wiring is synonymous to wires in a pipe.
