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If you are talking about an electrical ring main it can be as long as you want it as long as it returns back to the circuit breaker with the other end of the cable, which if you didn't return the 2nd end of the cable to the circuit breaker you would have a radial circuit.
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∙ 13y ago
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How do you Extend a ring main?
What is a ring main?
What is Uranus main ring?
The Mab Ring.
When was Thames Water Ring Main created?
Thames Water Ring Main was created in 1993.
What is a medium voltage ring main?
how, in simple terms, would you describe a ring main (Specifically medium voltage)
List four devices that you might connect to a domestic ring main?
how are devices connected to a domestic ring main
What is meaning ring main unit RMU and application?
A ring-main unit is a piece of switchgear used on high-voltage distribution ring-main systems (e.g. in the UK at 11 kV). Essentially, it's three switches incorporated into one device used to connect a transformer to a high-voltage ring main. It allows the transformer to be connected/disconnected to the ring main and it also allows the ring main to be 'broken'. Each of the switches has three positions: open, closed, or earthed (grounded); the earth position allows the transformer or either (or both) halves of the ring main to be earthed when maintenance is required.
What is the use of ring main unit?
ring main unit is distributing the power supply to meter cubicalAnswerA ring-main unit (rmu) is a piece of switchgear that is used to connect a transformer's primary winding to a high-voltage ring main. It consists of three load-breaking switches, each with three positions: 'on', 'off', and 'earth'. They enable the transformer to be connected/disconnected to the ring; the ring to be 'broken'; or the transformer to be connected to either half of the broken ring. The 'earth' positions allow the transformer's secondary to be earthed, or either half of the (broken) ring to be earthed.
How many 13 amp sockets can a ring main contain?
BS 7671:2008, Requirements for Electrical Installations, specifies that any number of socket outlets can be added to a final ring circuit (ring main), but the ring main must not supply a floor area exceeding 100 square metres.
Does Jupiter have one main ring?
No. Jupiter has a faint ring system composed of three main segments. There is also some suspicion that there is a fourth ring segment. See the Related Link below for more information.
How many rings are on the planet Jupiter?
Jupiter is known to have 4 sets of rings: the halo ring, the main ring, the Amalthea gossamer ring, and the Thebe gossamer ring.
What is RMU?
An 'RMU' is a 'ring-main unit', a type of switchgear used to connect distribution transformers to an underground, secondary-distribution (11 kV in the UK), cable ring-main system. It enables the transformer to be disconnected from the ring main, and it also enables the ring main itself to be 'split' where the RMU is installed. Each of the three switches within an RMU usually incorporates an 'earth' (ground) position, which will enable either the transformer itself, or the ring main to be earthed for safety reasons before any maintenance work can proceed.
How long did the LHC take to be build?
On the 10th of September 2008 proton beams were successfully circulated in the main ring of the LHC for the first time
