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No you can not mix voltages. That being said if the lower voltage is part of the control circuit from a MCC control centre then yes they can be mixed as the low voltage control is part of the complete system.
Composite power & control Teck 90 cable has the power feeders and usually 3/#12 or 3/#14 wires embedded in the same cable. These three wires allow for remote stop - start controls to be mounted neat the motor out in the field.
Yes as long as the 120 volt control wires are insulated rated at 600 volts. The wiring also has to pertain to the control of the motor. For example a three wire stop - start station for remote operation of the motor can be run along side of the motor feeders. The motor feeders and control wires must all come out of the same MCC bucket. There is a composite cable on the market that is used for just this purpose. The cable has the three motor feeders and three #14 or #12 control wires and a ground all in the same cable sheath.
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Is it legal to support a conduit from another conduit of the same size?
No, the conduit has to be supported individually from a supportive structure. The spacing of the strapping is related to the size of the conduit.
Can you run 110 and 220 volt circuits in the same conduit?
Yes, 120 and 240 volts can be run in the same conduit.
Are 120V and 208V the same?
no 208v is bigger
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.)
What is the multiplier for 45 degree offset in conduit bending?
Back set for all conduit sizes is not the same. The greater the diameter of the conduit the length of back set increases. Without the diameter size of the conduit, an answer can not be given.
Is there a way to install a 120V light on a 277V circuit?
No, it is not safe or recommended to install a 120V light on a 277V circuit. The voltage difference could damage the light fixture and pose a fire hazard. It is best to use a light fixture rated for the appropriate voltage.
Can SJ 300V rated wire be used for 277v light?
No, SJ type wire is not rated for 277V application. This wire is typically designed for lower voltage applications such as 120V or 240V. It is important to use wire with the appropriate voltage rating to ensure safety and compliance with electrical codes and standards.
Can a 1H75 be used with 277V?
No, a 1H75 ballast is designed for 120V input voltage. You would need a ballast specifically rated for 277V to operate fixtures at that voltage safely and effectively. It is important to match the input voltage of the ballast with the fixture’s voltage requirements to avoid damage or safety hazards.
Can you use existing PVC conduit run from basement to 8th floor for 120v circuits for chillers?
The simple answer to your question is yes. But there are limits to how many wires can be in any conduit, and the current carrying capacity of the conductors can be affected by distance, ambient temperature, and how many conductors are contained in the same conduit. Other things to consider are, Can you physically fit the wires in there? Would it be easier to run a new conduit? Do you have the manpower necessary to get the work done?
What is low voltage transmission?
In the supply industry it refers to circuits of below 1000 volts. Common voltages used are 120v, 208v, 230v, 240v, 277v, 400v, 415v, 480v.
Is it legal to support a conduit from another conduit of the same size?
No, the conduit has to be supported individually from a supportive structure. The spacing of the strapping is related to the size of the conduit.
How can you attach a 120 v Light Fixture to a 277 v system do I need a ballast so what kinda of ballast?
To attach a 120V light fixture to a 277V system, you will need a step-down transformer with a 277V primary and 120V secondary. This will allow you to safely power the light fixture at the correct voltage. You do not need a ballast in this case, as ballasts are typically used with fluorescent lights and not for altering voltage levels.
Can you run 110 and 220 volt circuits in the same conduit?
Yes, 120 and 240 volts can be run in the same conduit.
Are 120V and 208V the same?
no 208v is bigger
Will 277V work with a 120V ballast?
No, a 277V ballast is designed to work with a 277V power supply, while a 120V ballast is designed to work with a 120V power supply. Using a 277V ballast with a 120V power supply can damage the ballast and may cause safety issues. It is important to match the voltage of the ballast with the voltage of the power supply.
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 you mix line and load in same conduit?
No
