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In the UK what cable should you use for a domestic ring main?
The cable usually used is 2.5mm2 three core (live, neutral and earth). In circumstances where the cable runs are long or derating is required due to temperature 4mm2 is used. The ring main is usually protected by a 32A circuit breaker. In older installations a 30A fuse was used.
What type of cable would you to create a ring topology?
what type of cable would you used to create a ring topology?
What connector or connectors are used with Speaker Cable?
Speaker cable can be used bare or with pin, banana, spade or ring terminals.
What are 3 type of electrical circuit?
Lighting CircuitsRadial CircuitsRing circuitsRing CircuitsA ring circuit can serve an area up to 110 square metres (120 square yards), 2.5mm2 cable is used to wire the circuit and the circuit has a 30amp fuse or 32amp MCB on the consumer unit. It is usual for a house to have one ring circuit upstairs and one ring circuit downstairs.Ring circuits can have extra sockets added to them by adding a 'spur' onto a ring circuit. A spur is a branch off the ring circuit, usually from an existing circuit, although a junction box could also be used. Theoretically as many spurs as sockets could be added, but the maximum load of the circuit (30/32amp) still exists).Radial CircuitsRadial circuits can therefore only serve a smaller area. Using 2.5mm2 cable combined with a 20amp fuse/MCB an area of 20 square metres (24 square yards) is permissible. For 4mm2 cable combined with a 32amp MCB or a 30amp cartridge fuse (a re-wirable fuse is not allowed) an area of 50 square metres (60 square yards) is permissible.In a similar way to ring circuits spurs can be added at points along the radial circuit if required. High powered appliances (cookers / showers) must have their own radial circuit.Lighting CircuitsLighting circuits are basically radial circuits. There are two distinct types of lighting, circuit the loop-in circuit and the older junction box circuit. Most houses combine aspects of both types of circuits. The loop-in circuit has a cable, running from light to light terminating at the last light as in the conventional radial circuits and then single cable run from the lights to the light switches.The other type of lighting circuit has a junction box for each light. The cable runs from the consumer unit to the first junction box and then onto the next terminating at the last junction box. Then another cable is run from each junction box to its light and another wire from the junction box to that light switch. The cable used for a lighting circuit is 1mm2 or 1.5mm2 for long runs.Another AnswerI think that this question is referring to more fundamental circuits than those described above. There are fourcategories of circuit: series circuits, parallel circuits, a combination of the two (series-parallel circuits), and complex circuits. Complex circuits describe circuits which don't fall into the first three categories.
Service entrance cable underground feeder branch circuit cable mineral insulated cable jacketed cable?
These are different types of electrical cables used for various applications. Service entrance cable is used to connect the utility power to a building's main electrical panel. Underground feeder branch circuit cable is used for underground wiring between buildings or from the main panel to subpanels. Mineral insulated cable is a type of fire-resistant cable used in high-temperature environments. Jacketed cable refers to any cable with an outer protective covering for mechanical and environmental protection.
Can one use 1 circuit of a 3 wire plus ground 2 circuit cable as a GFI circuit with the other as a lighting circuit?
A GFCI can not be used on a three wire branch circuit. It has to be on a single two wire circuit.
Why would four core armoured cable be used in a single phase circuit?
Four core armoured cable would be used in a circuit carrying 240 Volts 60 Hz AC that is installed in a location where it could get damaged, such as underground or under water. The 4 cores in the armoured cable would be used as the following conductors for the 240 V 60 Hz circuit: * "Red" hot (120V above Neutral)* "Black" Hot (120V below Neutral)* "Neutral"* "Ground" to protect the circuit, connected to the main incoming supply panel which feeds the circuit.
It can be used for any circuit where copper cable is appropriate. This would include standard phones and digital signals such as DSL. If you can use standard network cable, then this product is accept?
It can be used for any circuit where copper cable is appropriate. This would include standard phones and digital signals such as DSL. If you can use standard network cable, then this product is acceptable. We use it for connecting radio equipment within our network.
How do close-circuit jacks work?
These jacks are used in audio systems to patch in a piece of outboard gear. When you plug in the cable, the circuit is interrupted and sent to the external gear. When you remove the cable, the circuit 'closes' and sends the signal on through. A headphone jack is a closed-circuit jack. When you plug in your headphones, the circuit to the internal speaker 'opens' and sound is sent only to the headphones. When you unplug them, the circuit to the speaker 'closes' and you hear sound through the speaker again.
What is the maximum length for twisted pair cable used in telephone circuit?
300 feet Answer I believe it is many miles, when used in a teleplone circuit. They use a large battery voltage for voice over the line. 100 meters if used in an ethernet environment.
What part of a circuit is the wire cable or switch?
Wire is the transition material used to carry the electric current; the switch is the controller of that current.
What does close circuit mean?
Closed circuit television is a television system which the video signals are transmitted from one (or more) cameras by cable to a restricted set of monitors. This is frequently used in security videos.
