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If you lay a power cable in a duct, and it overheats due to a short or overload, the smoke from the cable burning will fill the duct and be transported by the duct to places it should not be.
If the cable is not balanced, i.e. not paired up with its neutral return, current in the cable will induce a current in the duct via electromagnetic induction, causing heat, loss of power, and potentially fire, even if the original circuit was operating normally.
The latter effect is why penetrations for single cables in distribution panels must be slotted, so as to break the electromagnetic field.
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What is created when you lay the primary cable between the power source and the primary distribution center or primary switching center?
a primary power buss
What is the derating?
Derating factor depends on ambient temperature & how u r laying the cable ie., in Air,Duct,Burried. normally the current carring capacity of a perticular cable is calculated at 40*c, but if u lay the cable in air then it includes the temparture around it,if it increases more the 40*c then the conductor gets heated up by increasing the resistance in it thus the current carring capacity of a given cable decreases, so we will derate the cable The derating factor of induction motor is the ratio of the calculated output power to the rated power
How do you reduce induced voltage in control cables?
You can reduce induced voltage in control cable by applying the following methods. 1. While laying control cable keep a minimum distance 300mm from the power cable. 2. If possible try to lay control cable on the separate cable tray. 3. Earth the Armour/ screen of the control cable on both side of the cable or at-least at one side. Some times it is not important to reduce the the induced voltage in control cable, but it's effect on relay or contactor as the contactor or relay does not pick-down even after the removal of the control supply. In that case it is recommended to use two relay/contactor in parallel and use the contacts in series or parallel for control circuit interlocking.
What is EE?
.ee is the Internet country code top-level domain (ccTLD) of EstoniaEE can also stand for EasterEgger chicken, a cross-bred mutt with one blue egg laying parent (araucana/ameraucana) and any other breed as the other parent. They usually lay green eggs, but can lay any color egg.
Can you run electricity 1000 feet and run a barn?
I think you need to clarify whether you mean whether it's possible to do, or whether it's allowed by law/codes. It is certainly possible to do. The amount of copper (size and number of wires) needed depends on what you mean my "running a barn." The more electrical power you need to run the barn the more copper you must lay along the 1000 feet. I don't know about wiring codes and restrictions.
What is created when you lay the primary cable between the power source and the primary distribution center or primary switching center?
a primary power buss
What is the derating?
Derating factor depends on ambient temperature & how u r laying the cable ie., in Air,Duct,Burried. normally the current carring capacity of a perticular cable is calculated at 40*c, but if u lay the cable in air then it includes the temparture around it,if it increases more the 40*c then the conductor gets heated up by increasing the resistance in it thus the current carring capacity of a given cable decreases, so we will derate the cable The derating factor of induction motor is the ratio of the calculated output power to the rated power
Can a cable company lay cable on someones personal property?
A cable company can lay cable on someone's personal property but with the consent of the property owner. Some people will ask for some compensation before allowing this to happen.
What is lay ratio of conductor?
the lay ratio is the ratio between the lay length of the cabble and the Outer diameter af the cable( or the layer) lay ratio = lay length / OD and the lay ratio standard from ISO
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.
How much does undersea fiber cable cost to lay?
About $50,000 per mile
What is cable traffic?
Telephone cables lay on the ocean floors; communication traffic.
Septimus severus realized that an emperors true power lay where?
He realized that true power of emperors lay in the accumulation of power via republican offices and the support of the army.
What is one power that belongs to the federal government?
The power to lay taxes.
What is a fiber optic cable installed by my cable company?
Its the cable used now days for technology lines. In the old days they would lay copper lines, and now optic cable are lighter, faster and cheaper. This has been a brake through.
Congress has the power to?
lay and collect taxes
Can you lay a network cable next to a power cable?
If the network cable is a standard copper cat5/6 cable I would recommend keeping them at least six to twelve inches apart IF they are running side by side along a path. If they just cross at one point it's not likely to cause an issue for you. However if you're using STP (Shielded twisted pair) or fiber optics, lay them as close as you like and you'll be fine since crosstalk is not a serious concern with shielded cable or even possible at all with fiber optics. Regardless, you're not LIKELY to have any issues, but playing it say I'd say six inches at least. Hope this helps!
