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The size of grounding wires is dependant upon what the motor current category the motor fall into. The higher the motor amperage is, the higher the fault current will be so the larger the conductor size has to be to carry the fault current.
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Why conductors are designed using smaller strands?
Two reasons:Mostly a stranded wire is far more flexible than a solid one and less likely to break after repeated flexing.At AC frequencies in the RF range an effect called the "skin effect" starts to become significant, current flow restricts itself to the skin of the conductor and the wire resistance rises. Stranded wire offers more skin and thus reduces the wire resistance again.
Can you unlock your car from under the hood?
Some cars can be unlocked from under the hood if the center console for the central locking has its wires in the hood. The unlock wires are usually have a (-ve) current and that means that if you hook one switch wire up to chassis earthing wire and the other to the unlock wire it can unlock all the doors.
What are the main parts of three phase motor?
Wire, bearings, rotor and stator.
What is rod earthing?
It is the installation of ground rods at a service entrance distribution to bring the relative resistance to ground to be within 5 ohms of the utility's distribution network. This grounding system is then connected to the service distribution with a calculated size wire and connected to the distribution at a point within the distribution panel, where the service neutral wire joins the neutral bus bar.
Can you wire a Dayton electric motor to run backwards?
Yes, just reverse the start winding circuit.
Does earthing wire carry current?
The earthing wire does not normally carry current.
What is the difference between earthing boss and earthing lug and where to use?
An earthing boss and earthing lug are parts of a grounding connection. An earthing boss is in a casting that allows for the drilling and tapping of hole. A earthing lug is used to bond a wire to the ground.
How do you select earthing conductor size of any motor panel etc?
The ground wire size is determined from the current carrying capacity of the motor feeders.
What is the colour of earthing wire in India?
GREEN
How can you lay earthing strip on cable tray?
no use laying an earthing strip in a cable tray better tap both the ends of the earthing wire to the trunking,it will save your wire also,or lay out a cable in the other trunking where you have low voltage wire running in.
What types of wire are used in transmission lines?
Stranded aluminium, with a steel core.
Why is stranded wire used?
Multiple stranded cable is used in transmission lines because the high voltage potential of each line causes the electrons to tend to run only on the surface of the line due to repulsion. You want to maximize the surface area of the line, hence the multiple stranded lines, so that you maximize the efficiency of the line. In fact, some transmission lines have a non-conductive core, adding strength while maintaining low weight.
How do you strip insulation off stranded wire?
You would use a set of wire strippers made for stranded wire and proper size. If the strippers are made for stranded and solid make sure you use the size identifications for stranded not solid!
How do you identify nutral and earthing wire if they change?
Making a load On, By using a clamp meter for measuring the current in the wires : we find a reading in Amps. if we clamp the neutral wire. and zero when clamping the earthing wire.
Is it dangerous to touch earthing wire while lightning?
Yes
Why are appliances cord made of stranded wire?
Appliances cords are made of stranded wire because of the flexibility of these types of cords.
When an electrical earthing wire is showing live what is the problem?
earth wire not cnnected from main earth
