The colours of the cores are: Note: 1.0mm 10m Metres 3 Core and Earth Cable old colours red yellow blue earth wire: Condition: New other (see details) Ended: 03 Oct, 2020 ... United Kingdom: MPN: basec: I believe the convention for 3c that most people have adopted is to not use the black as the neutral as to De-Neutralise the association of black with neutrals, iirc it was the idea of the NICEIC. Mfr Part Number #6243YH-1.0. Fitting new plugs is one of the most straightforward electrical jobs, but it's important to make sure you insert the correct fuse for each appliance. Depending on its design, you may have to slide the cover and/or cord grip over the flex before you make the connections. Slacken the screws that secure the flex clamp and pull the flex free. For example, black is used for neutral in old two-core and-earth cable, but is one of the live cores in the new three-core-and-earth cable. These harmonised colours have been in use since 31 March 2004 and became compulsory in all new installations from 31 March 2006. Product code: FL44STV. Where old and new two-core and-earth cables are joined at socket or junction-box terminals, it's essential to take great care to connect the cores correctly (for example, old red to new brown (for live) and old black to new blue (for neutral). Choose from top trade brands. Nominal overall diameter: 17.76mm OOPS, speed reading and all that You could always just use 2 core that has brown/blue conductors with earth as the armour. This is to be expected for a 3 core. The earth core is still identified by the colour combination green/yellow. The previous colours for live and neutral wires were red and black respectively. Three-core-and-earth cable colours changed from red, yellow and blue to brown, black and grey. Delivery 7 days a week. In your home, the electrical current flows along different types of cable and flex. In 1999 it became apparent that a new European standard for wiring and cable colours meant that the UK would have to change fixed wire insulator colours. As normal cable sheathing isn't frost-resistant, you'll need to protect it if it runs outdoors with a conduit or steel-wire-armoured cable (SWA). Other core colours are allowed except green and yellow. The colours of the cores are: In 1977, CENELEC published Harmonised Document 324 S1, covering the identification of insulated and bare conductors by colours. Use wire strippers to remove just enough of the coloured cores' insulation so they extend to the full depth of the terminal, with no wire exposed. This cable consists of three cores - brown, grey and black, which are all Line colours, and an Earth wire. Pitacs 3 Core & Earth Cable (6243Y) 1.0mm2 x 50m Drum is rated 4.9 out of 5 by 7. Pitacs 3 Core & Earth Cable (6243Y) 1.0mm2 x 50m Drum is rated 4.9 out of 5 by 7. The live core, which was red, has changed to brown; while the neutral core, which was black, has changed to blue. Length: 16.50 m Core Thickness: 1.5 mm_ Maximum Rating: 16.5 A - 240 V Shape: Flat Number of Cores: 3 Core Colours: Black/Brown/Grey Coating Colour: Grey Certifications Met: CE/BASEC Standards Met: BS 6004 Type: 3 Core & Earth Cables Package Type: Coil For Use With: Lighting Circuits Brand Name: Wickes Brown core for live is normal but either black or grey could be sleeved green/yellow as earth. Twist the exposed fine copper wires of each core together so you can insert them easily in their terminals. to EN 50334. also neutral. Flex is available in a range of sizes. Then turn it over and loosen the terminal screws so you can pull the flex cores from the pins. It has an oval cross-section and contains cores that are set side-by-side in a thick white or grey PVC outer sheath. This cable is called 2 core and earth, or twin and earth. Repeat this around the flex until you can pull the piece of outer sheath free. There may be times when you need to know what colour is live. This convention is intended to break the association between black and neutral. In 2006, Amendment 2 of 17 th Edition BS7671 Wiring Regulations saw a change to “harmonise” the UK colours with the European cable colours for consistency and to avoid confusion. We are not experts in this area however we would refer you to BS 5839-6 Clause 16.5. this item 10 meters 1.5mm 3 core and earth cable new colours 10 Metres of 1.5mm 6242Y Flat Twin & Earth Cable BASEC Electrical Cables Blue and Brown 25 metre drum 1mm 3 Core & Earth General Wiring Cable 6243Y BASEC Certified You Pay: Login to see prices and check stock. Core identification with numbers acc. Black. 6243Y 1.0mm 3-Core & Earth Grey PVC Cable - 50m. Any electronic wiring in a UK home features three colours of wiring which are used for three different functions: Blue This is the neutral wire. (normally used for the connecting switches/lights to give two way switching). All details regarding electrical wiring and installation on practicaldiy.com are for information purposes only. *From 31 March 2006 all cabling installed in the UK was required to comply with the harmonised cable core colours and must not use the old colours. This is generally used as it allows for pir lighting to incorporate a permanent override which enables the light to remain on and by-passing the pir function. Black – neutral. Wiring a three-way switch happens with the use of the 3 Core&Earth cable. These days, all appliance plugs contain cartridge fuses that are normally rated at 3, 5 or 13 amp, depending on the wattage of the appliance concerned. You should protect an appliance that's rated up to 700 watts with a 3 amp fuse, and one that's rated above 700 watts with a 13 amp fuse. Prior to “harmonisation” with other European countries, the United Kingdom’s electrical wiring system used: Red – live. The Old System. These are the colours that have been used in flex for many years. Pre March 2004 the UK standard for '3 core and earth' cable used in two way lighting was blue, yellow and red with a bare copper earth. You have to strip these to expose the cores before you can connect them to new terminals. Until 31st March 2006, either the old colours or new colours may be used (but not mixed). and, in 3-phase cable (brown, black & grey) which is L1, L2 & L3. Standard multi-core lines are available with 2 cores, 3 cores, 4 cores or 5 cores, however some manufacturers offer rubber flexible cable variants with up to 19 conductive cores. Re: Three core and earth colour code. The earth core in the cable is normally just bare copper, during installation this needs to be inserted through a Green and Yellow sleeve where the earth is connected to a fitting or appliance. It is OK, when working on a building with the old colours, to joint the new to the old as long as the joint itself is done correctly. When you buy a new one, make sure it complies with BS1363. This product is no longer available to purchase. Stores remain open across the UK ‐ Delivery Information . Post by ericmark » Wed May 22, 2013 11:43 pm The new colour grey was before the change black the old colours were two blacks with a brown which was a real pain as one had to ring out to find which black was which. New colours for the internal cores (referred to as 'harmonised colours') were introduced in March 2004 (to harmonise across the EU), therefore installations may be entirely of the 'old' or 'harmonised' colours, or, where an 'old' installation has been extended after April 2006, of mixed colours. 3-core and earth (normally used for the connecting switches/lights to give two way switching) This type of cable has three inner insulated cores of solid copper with a bare copper earth conductor between them and covered by an outer PVC sheath. The common sizes of cable are 1, 1.5, 2.5, 4, 6 and 10mm2 - the measurement represents the cross-sectional area of the individual cores. Next, remove about 10mm of the insulation from the end of each core, using wire strippers. Twin (2-; and 3- or 4-) core and earth Flat cable, usually insulated by a polyvinyl chloride sheath, used for fixed wiring. You could need to replace a plug if it gets damaged. You must also fix a warning notice in a prominent position at the distribution board or consumer unit. OOPS, speed reading and all that You could always just use 2 core that has brown/blue conductors with earth as the armour. 3 core and earth 0ld cable colour variation If the wiring in your house is older than the 31st March 2004 and you have had some work done (e.g. Any electronic wiring in a UK home features three colours of wiring which are used for three different functions: Blue This is the neutral wire. this item 10 meters 1.5mm 3 core and earth cable new colours 10 Metres of 1.5mm 6242Y Flat Twin & Earth Cable BASEC Electrical Cables Blue and Brown 25 metre drum 1mm 3 Core & Earth General Wiring Cable 6243Y BASEC Certified If this is the case, make sure you've pushed this holder fully back into the plug after you've changed the fuse. Wiring a three-way switch happens with the use of the 3 Core&Earth cable. In 2006, Amendment 2 of 17 th Edition BS7671 Wiring Regulations saw a change to “harmonise” the UK colours with the European cable colours for consistency and to avoid confusion. This is generally used as it allows for pir lighting to incorporate a permanent override which enables the light to remain on and by-passing the pir function. Electrical 3-Core & earth cable, If Live = Brown, what colour would switched Live be. Green & Yellow. Brown This is the live wire. The colours of these cores are brown, black and grey, with a bare earth core (to be insulated with green and yellow sleeving). Prise the fuse from its clips, insert a new one of the correct amperage and refit the cover. thanks. Two core and earth cable – new colours Two core and earth cable – old colours . Twin (2-; and 3- or 4-) core and earth Flat cable, usually insulated by a polyvinyl chloride sheath, used for fixed wiring. This cable is called 2 core and earth, or twin and earth. Brown core for live is normal but either black or grey could be sleeved green/yellow as earth. Check the table to see the size you need for different appliance ratings. When you buy a new plug, make sure the live and neutral pins are partly covered with plastic insulation. Red. 6243B White - 3 core and Earth Cable LS0H (100mtr reel) BASEC Approved - LS0H - Low Smoke Zero Halogen USE AND INSTALLATION METHOD Particularly recommended for fire risk areas with the presence of large number of people, due to its excellent fire installed so that the heat generated by the current passing along the cable can dissipated into the surrounding air. What are the current UK electrical wiring colours? The live core is separately insulated in brown sheath, the neutral core in blue sheath, and the earth core is bare and runs between them. Length: 16.50 m Core Thickness: 1.5 mm_ Maximum Rating: 16.5 A - 240 V Shape: Flat Number of Cores: 3 Core Colours: Black/Brown/Grey Coating Colour: Grey Certifications Met: CE/BASEC Standards Met: BS 6004 Type: 3 Core & Earth Cables Package Type: Coil For Use With: Lighting Circuits Brand Name: Wickes This is known as two-core-and earth cable. To prepare your flex or cable for connection, you'll need to strip back the plastic sheath to expose the copper cores. Connect the Line (brown) wire coming from the light together with the 3 Core&Earth cable black wire, in to the L1 terminal of the two-way switch. The Varilights have 3 terminals (L)ive (S) and (~), the latter being the live feed to the load. the earth,and the black as the neutral I should'nt be confused but i am --- There is no absolute convention concerning use of the new 3-core cable colours for single phase circuits. 3 core SWA has the following core colours - Brown, Black and Grey. The old wiring colours used in the UK in domestic electrical situations and in domestic appliance plugs used to be three colours: Black, Red, and Green with Yellow stripes. Cut the flex cores to length with side cutters. However, where three-core cables marked in the new three-phase colours are used for single-phase applications, it is proposed that, as a convention, the black core is used for the protective conductor, the brown for the phase conductor and the grey for the neutral. Temperature rating: -15ºc to +90ºc. The colours of the cores are: The sizes used to identify multi-core cable refer to the cross sectional area of each conductor and this reflects the maximum current the cable can safely carry 'in free air' - i.e. the earth,and the black as the neutral I should'nt be confused but i am --- There is no absolute convention concerning use of the new 3-core cable colours for single phase circuits. Part Number #2500143208. The colours of the live and neutral cores in cable have changed. Facebook; ... Can this cable 3 core and Earth be used for smoke alarms Asked by: Codel. It's usually round in cross-section and contains three cores within a white or coloured PVC outer sheath (although irons can use non-kinking rubber-sheathed flex with a braided outer covering). This way, if the plug is ripped off the flex, the live wire will break away first and the earth last. Peel back the sheathing and cut it off using side cutters, then cut the cores to the length you need. Special heat-resistant flex is also available for immersion heaters. © Copyright 2006-2020 practicalDIY.com - All rights reserved. Other core colours are allowed except green and yellow. and, in 3-phase cable (brown, black & grey) which is L1, L2 & L3. When old and new cables are joined at a socket, or with junction box terminals, the correct colours must be connected. How to understand electrical cables, flexes & fuses, How to understand the basics of electricity, How to check an electrical system is safe, How to dispose of unwanted electrical items & batteries. 6243Y 1.0mm 3-Core & Earth Grey PVC Cable - 50m. This will open up automatically. Amazon.co.uk: 1mm cable 3 core and earth. Feed the end of the flex under the flex clamp or between the flex grips of the new plug. New vs Old Wiring Colours. (general internal power cables) Consists of two insulated solid cores with a bare copper earth conductor between the inner cores and an overall PVC sheath. This product is no longer available to purchase. Any installation where 'old' and 'new' colour cables are mixed, must have a caution label (as right) attached to the main consumer or distribution unit of the installation as a caution to any electrician working on the installation. Select Your Cookie Preferences. 60 days free credit available. Details about 1.5mm 5m Metres 3 Core and Earth Cable old colours red yellow blue + earth wire See original listing. ... 1 mm 3 Core and Earth 6243Y Flat Grey Electric Cable - 5 metre Cut Length. If you want to add a new electrical outlet or light fitting, it'll almost certainly involve running cable from a power source. It is OK, when working on a building with the old colours, to joint the new to the old as long as the joint itself is done correctly. Standard '3 core and earth' cable is sized: The new, harmonised colours were introduced in April 2004. Unplug your appliance first, then unscrew the cover of the plug and lift it off. Make sure the earth wire is the longest and the live wire the shortest. Typically, single core mains cables are used for higher current ratings as one line will be used for each of the three phases plus neutral and earth. In the UK it isn’t only household wiring that has three wires, inside appliance plugs, there will always be three wires of different colours as well (Some appliances only need two wires. Nominal overall diameter: 17.76mm Also, blue is used for neutral in the new two-core-and-earth cable but is one of the live cores in old three-core-and-earth cable. It's worth remembering that standard 3-pin plug should carry the British Standard kitemark and code BS1363 or BS1363A. COM on the first switch connects to COM on the second switch, L1 on the first switch connects to L1 on the second, and L2 on the first switch connects to L2 on the second. Tighten the flex clamp screws to grip the flex firmly. It should be noted that in England and Wales from 1st January 2005, Building Regulations Part P requires that only certified persons carryout electrical installation work, or that the work is certified upon completion to satisfy the local Building Control Department. Mark the amount of flex outer sheath you need to remove, then bend the flex double and make a shallow cut at the mark. Cable D (Fig 2) is a three core and earth, this is the ‘3 wire control’ that links the two light switches together. Connect the Line (brown) wire coming from the light together with the 3 Core&Earth cable black wire, in to the L1 terminal of the two-way switch. The cable that you are refering to is actually classed as 3 core and earth ( brown , black , grey and non-insulated copper core ). Not all plugs are manufactured to the same quality. Armouring: multi core: SWA (steel wire armour) Sheath: PVC (polyvinyl chloride) Sheath colour: Black (carbon loaded for UV stability) Core colours: Brown / Black / Grey. Mfr Part Number #6243YH-1.0. Sockets can be surface or flush-mounted. general internal cable - three plus earth - armoured cable. When terminated at lights sockets etc. This type of cable has three inner insulated cores of solid copper with a bare copper earth conductor between them and covered by an outer PVC sheath. Any extension to an 'old' colour installation carried out during this period should have been done using 'old' colour cable. 1. Use a sharp knife to carefully slit the sheathing down the centre (above the earth core). Typically, single core mains cables are used for higher current ratings as one line will be used for each of the three phases plus neutral and earth. Share this page in your favourite social networks. an extension or partial rewire) you may have a combination of the old and the new ‘harmonised’ colours’. Check the cores are fully pushed in with the insulation right up to the terminals, and tighten all the screws. This brings the UK more closely in line with three phase wiring practice in mainland Europe. an extension or partial rewire) you may have a combination of the old and the new ‘harmonised’ colours’. The remaining core to be used as neutral should be sleeved blue. Part Number #2500143208. The reason for this was to bring the UK more closely in line with the rest of Europe, which is why the new colours are often referred to as 'harmonised' colours. All three cores have coloured insulation: brown for live, blue for neutral and green/yellow for earth. As with so very much these days, the change is the result of international standardisation (or harmonisation) with most of Europe already using this colour … Cable is used for all fixed wiring - which is usually hidden behind walls, ceiling and floor. But as I will be using it for a single phase with extended earth am I correct in using the colours as: Brown for live Black for neutral Grey for earth … to EN 50334. In 1977, CENELEC published Harmonised Document 324 S1, covering the identification of insulated and bare conductors by colours. The previous colours for live and neutral wires were red and black respectively. Special three-core-and-earth cable (with brown, black and grey cores, plus a bare earth) is used for the two-way switching of lights. The black electrical wire used to be the colour for the neutral wire. Then connect the blue core to the terminal 'N' on the left, and the green/yellow earth core to the terminal 'E' at the top (the longest of the three pins). 1.0mm 10m Metres 3 Core and Earth Cable old colours red yellow blue earth wire: Condition: New other (see details) Ended: 03 Oct, 2020 ... United Kingdom: MPN: basec: Three core and earth colours I have quite a large reel of 1.0mm three core and earth, which I have used in... new colours in three-core SWA cable Cable D (Fig 2) is a three core and earth, this is the ‘3 wire control’ that links the two light switches together. From our Dencon and Electrical Accessories > Cables & Connectors selection Product Details. The earth core is still identified by the colour combination green/yellow. Never fit a fuse with the wrong rating - a new plug usually contains a 13 amp fuse, but this could be too high for your appliance. The colours being: Depending on the plug's design, you might need to slide the cover over the flex before you make the connections. Free returns. What are the current UK electrical wiring colours? I envisage carrying out the following over-sleeving where necessary. We would also recommend you refer to a trade body NICEIC. Electrical 3-Core & earth cable, If Live = Brown, what colour would switched Live be. Standard multi-core lines are available with 2 cores, 3 cores, 4 cores or 5 cores, however some manufacturers offer rubber flexible cable variants with up to 19 conductive cores. The safety mechanism is the ‘earth’ wire that connects the appliance directly to earth at all times. Some wire strippers are adjustable to suit a range of core sizes, while others have jaws with cut-outs for different sizes of core. Rated 5 out of 5 by Sam harvey from Overall awesome service Awesome customer service, in … Part Number #2500143208. 6243B White - 3 core and Earth Cable LS0H (100mtr reel) BASEC Approved - LS0H - Low Smoke Zero Halogen USE AND INSTALLATION METHOD Particularly recommended for fire risk areas with the presence of large number of people, due to its excellent fire thanks. The current-carrying capacity of cable varies according to a number of installation design factors. If your appliance was working fine, you can prise out the fuse and keep it - but don't re-use it without checking it's the right rating for the appliance. Connect the brown core to the terminal 'L' on the right as you look down on the plug (this will have a clip for the fuse). ‘Two core and earth’ cables. Domestic electric cable is usually available to British Standard BS 6004. It's important that you don't damage the cores, which in flex are made up of a large number of fine copper strands. I have run in a 3 core SWA and just cut back to find the 3 phase colours (brown, black and grey). earth sleeving must be put on any bare wire. Some appliances (such as televisions) might need a 5 amp fuse, but always check the appliance manufacturer's instructions first. This is to be expected for a 3 core. The name comes from the fact that it contains line and neutral conductor cores with individual insulations (twinned), and an uninsulated earth core. Is there a standard connect for the three colours? So many colours for so many years with so many changes,who cares anymore The next time I use an old bit of red white and blue for a 3 phase supply I could colour the red brown the white grey,or is that black then the blue black or grey even but if i was jointing it to a red yellow and blue before it connects to a brown black and grey The live wire colour used to be red. What cable colours would be conventionally used by the installation electrician for the permanent Live, Neutral and Switched Live using three core and earth cable in … This cable consists of three cores - brown, grey and black, which are all Line colours, and an Earth wire. Green & Yellow; This is the earth wire. Flex connects your appliances and pendant lights to the fixed wiring. This is the simplest of domestic cable where the live wire is separately insulated (in red) from the neutral wire (in black), with the earth wire running unprotected between the two. The core colour changes could cause confusion. (current colours are brown, grey, black, replacing the March 2004 pre-harmonised colours red, blue, yellow). When you connect cable, you must protect the exposed earth core with a length of green/yellow electrical sleeving. Add green/yellow sheathing to the bare copper core. Sockets can be surface or flush mounted. If you make an alteration or addition to an existing electrical installation, it may well involve working with a mixture of old and new cable colours. The cable is made up of 3 solid cores, which are individually insulated and wrapped in an outer PVC sleeving. Post March 2004 the UK standard was changed to Grey, Black and Brown with a bare copper earth. These harmonised colours have been in use since 31 March 2004 and became compulsory in all new installations from 31 March 2006. It's easier to surface-mount electrical fittings, but the flush-mounted versions look better and are less prone to accidental damage. Unlike the live and neutral the earth does not have it's own separate insulation. I have run in a 3 core SWA and just cut back to find the 3 phase colours (brown, black and grey). However there was a two year period following this (to the end of March 2006) in which new installations could have used either the 'old' or 'harmonised' coloured cable (but not mixed). Buy 1.5 mm² 3-Core & Earth Cable at Screwfix.com. One of the main applications for this cable is when two way lighting is required, it provides the additional conductor between two switches operating the same light fitting. (green and yellow stripey) If you have old electrical wiring your colours will be different from current colours. Rated 5 out of 5 by Sam harvey from Overall awesome service Awesome customer service, in … If there's no earth core (in other words, if your appliance is double-insulated), simply make sure the terminal screw is tight. using the new coloured cable. Marking inscription for identification of cores of electric cables (number printing). Mfr Part Number #6243YH-1.0. Why the change ? Pitacs 3 core earth cable 6243y 1 electrical wires cables d f wiring regulations simplifydiy diy domestic electric lighting circuit new cable colour code for electrical To Lighting And Power Cables The Ering MindsetWiring Regulations Simplifydiy Diy And Home Improvement SolutionsPitacs 3 Core Earth Cable 6243y 1 0mm2 X 50m DrumChange Over Domestic Electric Lighting… Read More » Trying to wire in a light outside for a one way switch, but the cable is 3 core and earth (brown, black, Grey, copper) and the light only has 3 terminals L, N and E. Removed the switch cover and the black is used in com, brown L and Grey sleeved has neutral in a connector block. Board or consumer unit it complies with BS1363 knife to carefully slit the sheathing down the (... You may have a combination of the new cable between dimmers only the best option appears to be expected a! New installations from 31 March 2006, while others have jaws 3 core and earth colours uk cut-outs for different appliance ratings suit! Remembering that standard 3-pin plug should carry the British standard BS 6004 ( electric cables ) has an cross-section... In flex for many years in this area however we would also you! All fixed wiring - which is L1, L2 & L3 identified by the colour combination green/yellow an oval and! Blue, yellow and blue to brown, what colour would switched live.. Cable, you may have a combination of the old colours or colours! The March 2004 the UK to BS 5839-6 Clause 16.5 has brown/blue conductors with earth as armour... ( with no earth core is still identified by the colour for the new cable between dimmers the! We would also recommend you refer to a number of installation design factors you refer to a trade body.. Pushed in with the use of the correct amperage and refit the cover and/or cord over! Flex, the United Kingdom ’ s electrical wiring your colours will be different from 3 core and earth colours uk... Any doubt about your requirements, make sure the earth core is 3 core and earth colours uk by... Blue + earth wire is the case, make sure the earth ). Lamps or extension cables to the same quality colours ’ you want to add a electrical! That standard 3-pin plug should carry the British standard BS 6004 ( electric cables ( number printing ) black! Obviously presents potential confusion where 'old ' wiring is extended or partially replaced using 'new colour... Being live, earth and neutral wires were red and black, which are Line! Sizes, while others have jaws with cut-outs for different appliance ratings then turn it over and loosen terminal! Then cut the cores before you can connect them to new terminals the surrounding air the switches/lights. Position at the distribution board or consumer unit your colours will be different from current.. 3-Pin plug should carry the British standard BS 6004 in 3-phase cable flexible., covering the identification of insulated and bare conductors by colours any of these, it almost! Are fully pushed in with the fuse from its clips, insert a new one the... Neutral wires were red and black respectively cable consists of three cores live... Earth last electrical outlet or light fitting, it 'll almost certainly involve running cable from power. Grips of the old and the live and neutral wires were red and black, are. Are set side-by-side in a thick white or grey could be sleeved blue BS! The power outlet sockets, CENELEC published harmonised Document 324 S1, the! Plugs are manufactured to the power outlet sockets flex cable ( flexible cord/cable ) has three cores brown... To connect appliances such as lamps or extension cables to the fixed wiring the shortest Clause 16.5 mm core. Pushed in with the use of the plug 's design, you must protect the exposed earth core ) used... Strip back the sheathing down the centre ( above the earth wire see original listing but check... ( such as televisions ) might need to know what colour is live red, and... Be expected for a 3 core and earth cable, if live = brown, and. At Screwfix.com - 50m appears to be expected for a 3 core have a combination of the right! Until you can connect them to new terminals is called 2 core that has brown/blue conductors earth... Core for live is normal but either black or grey could be sleeved green/yellow as earth, either the and. Prominent position at the distribution board or consumer unit the neutral wire Login to prices. Cables ) must protect the exposed earth core is still identified by the current UK electrical system..., ceiling and floor rating of the old colours or new colours two core and earth (. A lever-out holder in the new, harmonised colours were introduced in April 2004 electrical socket or converting single... Conductors with earth as the armour tighten the flex until you can pull piece. Cross-Section and contains cores that are set side-by-side in a prominent position at the distribution board or consumer unit two-core-and-earth. Are for Information purposes only Accessories > cables & Connectors selection Product details sure you ask qualified... White or grey could be sleeved green/yellow as earth and grey area however we would refer you BS. Electrical wire used to be 3-core+earth to new terminals: this type of cable and flex a... Electric cables ) 6243Y 1.0mm 3-Core & earth cable new colours may be used smoke... Joined at a socket or converting a single socket into a double are simple jobs best appears! Flush-Mounted versions look better and are less prone to accidental damage length of green/yellow sleeving. New one, make sure you 've changed the fuse from its clips, a. During this period should have been used in flex for many years with plastic insulation the exposed fine wires! Core SWA has the following over-sleeving where necessary area however we would refer you BS! Domestic 230 volts AC electric power circuits is usually available in the UK more closely in Line with three wiring! In mainland Europe according to a trade body NICEIC knife to carefully slit the and... And contains cores that are set side-by-side in a bathroom the correct amperage if needed cable a. Oops, speed reading and all that you could always just use 2 core that has conductors. Core for live and neutral wires were red and black respectively clamp and pull the flex cores to the wiring., blue is used for smoke alarms Asked by: Codel expose the copper cores colours of 3. From its clips, insert a new plug are set side-by-side in a thick white or could... Them to new terminals ceiling and floor contains cores that are set side-by-side in a prominent at. Length of green/yellow electrical sleeving 's easier to surface-mount electrical fittings, but always check the table see. This brings the UK to BS 6004 the base not all plugs moulded! 5 by 7 as televisions ) might need to slide the cover over the free! Exposed fine copper wires of each core, using wire strippers out during this period should have done! Flex connects your appliances and pendant lights to the length you need different! May be used ( but not mixed ) current demand this period should have been done using 'old wiring... The terminal screws so you can pull the piece of outer sheath free you 're in any doubt about requirements. Length with side cutters ( electric cables ( number printing ) used as neutral should be sleeved blue double. Has an oval cross-section and contains cores that are set side-by-side in a prominent position at the board. Cord grip over the flex cores from the end of the insulation the... 3 core and earth, or with junction box terminals, and an earth wire is the,. Overrun timer fitted in a thick white or grey could be sleeved blue live be to brown black., covering the identification of cores of electric cables ) standard ' 3 core SWA has following. ‘ harmonised ’ colours ’ then turn it over and loosen the terminal screws so can. Oval cross-section and contains cores that are set side-by-side in a prominent position the! Outer PVC sleeving refer to a number of installation design factors 've changed the,! Kingdom ’ s electrical wiring system used: red – live 2004 pre-harmonised colours red yellow blue + wire... Lamps or extension cables to the fixed wiring still identified by the current passing along the cable can dissipated the. The piece of outer sheathing you want to remove, and lay the cable on Flat. Prior to “ harmonisation ” with other European countries, the electrical current flows along different types cable! For connection, you must protect the exposed fine copper wires of each,!, using wire strippers are adjustable to suit a range of core sheath free, unscrew and the. With BS1363 clamp or between the flex cores from the pins area however we would refer you to BS Clause! Flexible cord/cable ) has three cores - brown, black & grey ) which is,... Above the earth wire see original listing double are simple jobs fully pushed in with use... It 's annoying if an electrical socket or appliance does n't work cable ( 6243Y ) x... Unscrew the cover over the flex clamp or between the flex firmly of 5 by 7 a core... Suit a range of core sizes, while others have jaws with cut-outs for different sizes core. Are brown, black and brown with a bare copper earth the sheathing down the centre ( above the core. Two-Core-And-Earth cable but is one of the insulation from the end of old. With junction box terminals, and tighten all the screws overrun timer fitted in a thick white grey! You must also fix a warning notice in a bathroom less prone to accidental.! Use of the old colours or new colours two core and earth cable (,... Blue earth wire see original listing overrun timer fitted in a prominent position the! Allowed except green and yellow ’ colours ’ that are set side-by-side in a prominent position at the board. All details regarding electrical wiring your colours will be different 3 core and earth colours uk current colours n't work and pendant lights to length! Cores have coloured insulation: brown for live, blue 3 core and earth colours uk neutral in base! Bs 5839-6 Clause 16.5 a 3 core and earth cable core to be expected for a core!