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When paralleling a service must the sets of conductors be in separate conduits or can they be in the same conduit?
They can be either separated or combined. What governs the choice is the size of the service and the conductors feeding the service and the ability to physically connect metering equipment to larger size conduits. When paralleling conduits make sure all the phase wires are in their individual conduits to cancel the field effect of the wires. Eg. conduit 1 - L1 + L2 + N , conduit 2 - L1 + L2 + N. Likewise with three phase, conduit 1 - L1, L2, L3, conduit 2 L1, L2, L3.
Are conduits secured every 5-6 at Electrical service entrance?
Conduits are typically secured at multiple intervals along the length of the conduit, usually every 3 to 5 feet depending on local building codes and requirements. Inspections are conducted to ensure that the conduits are properly secured and supported at the electrical service entrance to prevent damage and maintain safety standards. It's best to consult with a licensed electrician or building inspector for specific regulations in your area.
Arlobes can be either attached or detached. The allele for attached earlobes is recessive (e) and the allele for detached earlobes is dominant (E). What must be true if a boy is born with attached ear?
If a boy is born with attached earlobes, he must have inherited two recessive alleles (ee), one from each parent. This means that both parents must either be carriers of the recessive allele (Ee) or express the attached earlobe phenotype themselves (ee). Therefore, at least one of the parents must have the recessive allele for attached earlobes.
What is the minimum size of service conduit?
Answer for USA, Canada and countries running a 60 Hz supply service.Conductors should not be smaller than #8 copper. With that that in mind a 1" conduit would work. Better to use at least 1 1/2-2" depending on the amps of your service. Bigger is always better!As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Can you have only one current carrying conductor in a conduit?
You can have only one current carrying conductor in a conduit, but that conduit must have a slot to relieve the eddy currents that will be created by the transformer effect created by the conductor. It is better to run the neutral or opposite conductor along with the hot conductor together in the same conduit, or through the same penetration, so as to minimize this effect.
Does the metal conduit count as a ground?
No, each conduit must contain a separate grounding conductor.
When exist a junction box EMT conduit must be supported with how many inches?
When exist a junction box EMT, conduit must be supported within 18 inches.
When paralleling a service must the sets of conductors be in separate conduits or can they be in the same conduit?
They can be either separated or combined. What governs the choice is the size of the service and the conductors feeding the service and the ability to physically connect metering equipment to larger size conduits. When paralleling conduits make sure all the phase wires are in their individual conduits to cancel the field effect of the wires. Eg. conduit 1 - L1 + L2 + N , conduit 2 - L1 + L2 + N. Likewise with three phase, conduit 1 - L1, L2, L3, conduit 2 L1, L2, L3.
Can a three phase circuit be installed in the same conduit or in different conduits?
The conductors of any three phase circuit must be run in the same conduit. If the circuit requires a neutral, it must also run with the conductors in the same conduit. (If they were to be run in more than one conduit or raceway, the circuit would not operate properly.)
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 you run insulated wires in a conduit pipe?
Except for the ground wire they must be insulated.
Are conduits secured every 5-6 at Electrical service entrance?
Conduits are typically secured at multiple intervals along the length of the conduit, usually every 3 to 5 feet depending on local building codes and requirements. Inspections are conducted to ensure that the conduits are properly secured and supported at the electrical service entrance to prevent damage and maintain safety standards. It's best to consult with a licensed electrician or building inspector for specific regulations in your area.
Do you need a mast to run aerial wire from a garage with a 100 amp fuse box to an office trailer?
Yes, it must have a standoff, and the proper service head in. I would run it underground instead of overhead. Use underground wire in a conduit.
What is the code for strapping EMT conduit from a box?
The 2008 NEC code states that conduit must be strapped within 36" or 3 feet from every box or connector, then every 5 feet is acceptable from there.
To use gadgets they must be attached to the windows taskbar?
CIS 5.2 Brooklyn College, correct. They must be attached to the Sidebar!!
If a rider is attached to a bill it must be introduced before what event?
If a rider is attached to a bill it must be introduced before first reading.
What is another name for thin wall conduit?
There are many types of conduit used for the containment of electrical wires. PVC is a non-metallic option. If you need something that provides mechanical protection, EMT is a steel conduit with a thin wall. Need even more mechanical protection, you can use rigid conduit. It comes in steel or aluminum, and must be threaded together.
