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Anonymous Poster #1

Electrical Cables

08/14/2017 11:26 AM

Hi,

What are single core armoured cables, two core armoured cables?

Best Regards,

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#1

Re: Electrical Cables.

08/14/2017 11:40 AM

Cores are the number of conductors in the wire....

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Anonymous Poster #1
#2
In reply to #1

Re: Electrical Cables.

08/14/2017 9:10 PM

So, two-core cables (two conductor cables as suggested) are two-phase cables? Where is neutral?

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Anonymous Poster #1
#3
In reply to #2

Re: Electrical Cables.

08/14/2017 9:20 PM

two core is - one conductor for phase and other conductor for neutral?

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#4
In reply to #3

Re: Electrical Cables.

08/15/2017 3:00 AM

That is an option, correct.

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#6
In reply to #3

Re: Electrical Cables.

08/15/2017 4:26 AM

They can be whatever you want, depending on how you connect them. It's the circuit that determines it, not the cable itself.

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#7
In reply to #3

Re: Electrical Cables.

08/15/2017 11:36 AM

The terms, "core: and "phase" are not synonymous. The have distinctly different meanings.

Multicore cable - Wikipedia

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#5
In reply to #2

Re: Electrical Cables.

08/15/2017 3:23 AM

The label "two-phase" can only be relevant in a situation where there are two live conductors in the presence of a neutral conductor. The term "split phase" is also used. Such an arrangement can be used to supply two sets of single phase loads as well as a single phase load that is wired across the two live conductors. Therefore at least three current-carrying conductors are needed.

An arrangement where power is transferred over two live conductors without a neutral would not normally be labelled two-phase, as it would not be possible to supply a single phase load from each of the two live conductors. Therefore at least two current-carrying conductors are needed.

https://en.wikipedia.org/wiki/Split-phase_electric_power

Any arrangement where power is transferred over three separate live conductors can be labelled "three-phase", whether a neutral is used or not. Therefore at least three current-carrying conductors are needed.

https://en.wikipedia.org/wiki/Three-phase_electric_power

https://en.wikipedia.org/wiki/Ground_and_neutral

The number of cores needed in any power cable is the sum of the number of live conductors needed, plus any neutral conductor needed, plus any ground/earth conductor needed, as applicable.

Armoured cables offer special resilience against the effects of cable damage. It is normal to connect one end of the cable armour to ground/earth to offer electric shock protection to the individual operating, usually inadvertently, the item that is effecting the damage. In such a situation, any incoming item will contact the armour in the first instance before it touches any live conductor. The summary effect of this is to operate the circuit protective device while the incoming item remains close to earth/ground potential, thereby protecting to some extent the individual applying the item; while possibly spectacular at the time the risk of electric shock to the individual is somewhat reduced.

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Anonymous Poster #1
#8
In reply to #1

Re: Electrical Cables.

08/15/2017 5:16 PM

which voltage class are these torolink-x xlpe insulated armoured and pvc sheathed single core power cables?

Regards,

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#9
In reply to #8

Re: Electrical Cables.

08/16/2017 2:52 AM

The best source of information is always the cable manufacturer, whose name and number cannot be seen from here. Why not get on the phone to them, and ask directly?

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#10

Re: Electrical Cables

08/22/2017 6:02 AM

i think using Google search will be of help.

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