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• Mains Voltage
  Mains Voltage in the UK has been unified at 240v ac for over half a century. The ...Guide, you will encounter a number of less familiar terms used to describe mains and other voltages. This article will hopefully clarify some of these terms
  7 KB (1,113 words) - 12:05, 23 August 2012
• Mains plug
  An introduction to the various mains plugs used in the UK. ==BS 1363 13A Mains Plug==
  2 KB (399 words) - 11:18, 8 June 2022
• Mains plugs
  #REDIRECT [[Mains plug]]
  24 bytes (3 words) - 23:36, 25 August 2012
• Historic Mains Cables
  * Once commonly used for mains [[CU|incomer]] insulation ...haped flex is now used as speaker wire, but was used as a standard type of mains flex until the mid 1970s. Less often a 3 core version of this was seen.
  7 KB (1,056 words) - 19:04, 25 January 2019
• Mains power restored alarm, non contact
  ...access to a backup power source such as a generator or a battery bank and mains inverter, then you can safely switch power for the whole property between a ...r? This article explores a small project to make identifying when the grid mains power is restored, easy!
  20 KB (3,407 words) - 12:35, 19 November 2022
• DIY Real time mains power meter
  ...eading of the current flowing at that moment. Multiply that number by your mains voltage (typically 240V), and you will have a an indication of the total po ...ad may be "reactive" - i.e. where a load stores some energy on part of the mains cycle, but then releases it later. This means not all of the current you ca
  18 KB (3,141 words) - 14:49, 2 December 2022

Page text matches

• VHF aerial
  ...reception of a wire aerial can be improved by snaking it round the [[flex|mains lead]] for capacitive coupling. ==Mains aerial==
  4 KB (601 words) - 17:33, 1 August 2010
• Low Voltage Links
  This category is for voltages much lower than mains voltage.
  456 bytes (67 words) - 14:45, 23 May 2009
• Mains plug
  An introduction to the various mains plugs used in the UK. ==BS 1363 13A Mains Plug==
  2 KB (399 words) - 11:18, 8 June 2022
• Plug & socket
  BS 1361 Plug, 13A plug, mains plug ..."ring final circuits" but DIYers often use the terms ring circuits or ring mains and electricians often just use the term ring. (Lighting circuits aren't no
  1 KB (180 words) - 00:24, 2 August 2017
• Electrical Links
  ....google.com/group/uk.d-i-y/browse_frm/thread/cffbdc37339c0a11?hl=en# 2 way mains leads] ...m/albums/r593/Scrumbledelicious/2012-02-06_09-44-02_942.jpg Illegal unsafe mains plug]
  6 KB (1,068 words) - 08:10, 30 August 2016
• Water
  == Mains ==
  2 KB (326 words) - 15:26, 26 April 2012
• Appliance repair hazards
  Some risks are common to all mains appliances: The mains risks are:
  5 KB (809 words) - 00:56, 11 December 2008
• Single Shot heater control
  # A mains double pole relay, with a 230V coil, and contacts rated for a load of at le ...ins filter networks could also be included across the relay coil to reduce mains interference created by switching inductive coils. See this article on [[Ex
  5 KB (875 words) - 11:29, 19 November 2021
• Electrical safety
  ...the factors determining shock current. The voltage is obviously higher for mains than a small [[battery]]. (Batteries can kill a person, but only under unus ...inyl-covered floor might hardly notice contact between a finger and a live mains terminal under ideal conditions.
  6 KB (1,012 words) - 02:28, 4 September 2017
• Flex
  '''Flex''' is stranded electrical wire used for all plug-in mains appliance leads. It is also called flexible cable. [[Cables|'''Cable''']] on the other hand is unstranded mains wire not suited to repeated flexing, and is used for fixed installations.
  5 KB (821 words) - 09:38, 10 January 2013
• Bad Ideas - Electrical
  [[image:Braided mains lead 0765-5.jpg|250px|right]] ===Fitting a mains drill with an RCD===
  3 KB (497 words) - 20:23, 2 September 2018
• Emergency Lighting
  ...of '''Emergency Lighting''' is to help ensure a safe escape in a fire when mains [[Lighting|lighting]] is lost. They may be used to light the escape route, '''Non-maintained''' fittings only light when the mains supply fails.
  4 KB (626 words) - 21:14, 4 October 2013
• Domestic Hot Water Systems
  ...e would choose one rather than another. In particular the various types of mains pressure systems - [[Unvented DHW|'''unvented''']] and [[Thermal store|'''t * '''Mains pressure water''' e.g. [[Combination Boilers|combi boilers]], unvented ('Me
  10 KB (1,559 words) - 13:39, 29 August 2016
• Rainwater Harvesting & Use
  ...t switch low down on the header tank detects low water level, and delivers mains water when the header water level gets low. ===Automatic mains water backup===
  7 KB (1,141 words) - 13:44, 7 April 2012
• Darwin award
  The guy that made a floating mains extension lead, and was found using it in his pool.
  2 KB (298 words) - 00:13, 9 December 2010
• Water meter reading
  I did away with all the old mains piping in the garage, but I kept the
  715 bytes (138 words) - 13:38, 22 February 2018
• Snubber
  * Mains [[motor]]s (eg fans) ...olation a switch provides. A 0.1uF snubber can pass upto 7.5mA rms on 240v mains, enough to give a serious shock, thus snubbers make switched lives still li
  3 KB (550 words) - 17:25, 12 March 2018
• Drill buying guide
  == Mains Drills == ..., where the DC motor will provide a much better control of power than most mains drills. If you assemble flat pack furniture, then a cordless drill will sav
  7 KB (1,211 words) - 02:44, 2 May 2023
• Wallwart energy use
  * The cost and production energy use of a [[Flex|mains lead]] is replaced with those of a length of thin [[Low Voltage Wiring|spea * No need to design, test or certify the appliance to mains safety requirements: cuts design time, costs, material use, and the legal &
  6 KB (921 words) - 08:34, 3 February 2011
• Fan Speed Controller
  ...ces, and can produce very high voltage spikes when switched off, far above mains voltage. I'm not going to give safety advice on this, if you need to ask th ...parate box to the switch, that box should be fire resistant like any other mains wiring accessory.
  10 KB (1,455 words) - 02:44, 28 February 2008
• Aerial amplifier
  Plug-in amps have a mains plug. These are easy to use where there's a mains socket. A mains plug is not convenient for [[LoftConversion-JohnRumm|lofts]] and rooftops,
  5 KB (868 words) - 09:26, 24 March 2014
• Cordless tools FAQ
  ...ordless tool is desirable and in class of its own - often in addition to a mains equivalent. ...ordless (for things other than drills) you are probably better sticking to mains.
  7 KB (1,235 words) - 20:02, 9 September 2017
• Volt stick experiments
  ...ctors are typically promoted as a more reliable and safer way of sensing a mains voltage.
  3 KB (509 words) - 23:12, 24 July 2023
• Cable for TV aerials
  ...ins use. Avoid using clips which deform the cable, as occurs with some non-mains clip types.
  3 KB (517 words) - 21:26, 24 June 2013
• Paddle mixer
  ...out 1kW, and are designed to be used for longer under load than a standard mains drill. They have a threaded socket to take standard paddles. * the threaded top end was evenly ground down to fit a mains drill with 2 speed gearbox. (this is far from ideal, but we needed it right
  3 KB (513 words) - 09:45, 16 November 2013
• LED Lighting
  * mains LED lamps (typ 1-11W) ===Mains LED lamps===
  12 KB (1,910 words) - 12:06, 23 May 2016
• Fuse
  * in mains plugs * at the supply company's mains incomer
  11 KB (1,743 words) - 09:10, 5 October 2022
• Mains Voltage
  Mains Voltage in the UK has been unified at 240v ac for over half a century. The ...Guide, you will encounter a number of less familiar terms used to describe mains and other voltages. This article will hopefully clarify some of these terms
  7 KB (1,113 words) - 12:05, 23 August 2012
• Backup power, Installing a transfer switch
  ...lowing mains powered appliances to be run anywhere, even if nowhere near a mains supply. They can also be a way to keep you house or business operational wh ...tive electronic equipment since they use an inverter to synthesize a clean mains supply, and are far less likely to inject unwanted spikes or other disrupti
  12 KB (2,053 words) - 18:26, 23 January 2024
• Safety
  ...ed equipment can contain voltages more dangerous than mains, and that some mains-operated appliances can contain voltages as hight as on overhead power line
  9 KB (1,433 words) - 11:22, 11 May 2010
• Chuck
  * Loss of the key wastes time if not attached to the [[flex|mains lead]] (the key fairy is mischevious). The key can be attached to the [[flex|mains lead]] with a cable tie to avoid wasted time searching for it.
  6 KB (1,056 words) - 13:34, 3 April 2011
• Neon screwdriver
  ...the functions of a small terminal screwdriver with a [[Electricity Basics|mains voltage]] detector. However they have a number of safety problems, and the Mains power flows down the screw driving tip to the resistor and [[Lighting|neon]
  4 KB (637 words) - 23:19, 3 December 2017
• Pullcord switch noise
  Standard mains wallswitch on [[Wallwart|6v]] operating a relay.
  2 KB (359 words) - 08:34, 26 March 2011
• Inline Sanding Hack
  (results with a larger mains powered say would probably be better, and less vibration reaction from the
  2 KB (300 words) - 23:07, 10 November 2018
• Choosing a plug fuse
  ...most of your mains powered appliances will sport a [[Mains plug|BS1363 13A Mains plug]] on the end of the flex. This plug is highly regarded for its safety This article will explain how to choose which rating fuse to use in a UK mains plug.
  12 KB (2,048 words) - 11:40, 17 August 2022
• Twisted Flex Joints
  '''Twisted Flex Joints''' have been used to extend mains leads for a long time on electrical goods. They were even sometimes used as
  3 KB (475 words) - 02:53, 27 March 2008
• Cable organising
  Some leads are available in 2 way versions. These have 2 leads and one mains [[plug]]. Often the lead is Y shaped. These reduce plug, [[socket]], [[flex ...y leads may be safely made from existing leads by putting 2 leads into one mains plug, provided that both flexes are of the same size, both fit the plug (so
  6 KB (1,102 words) - 21:11, 4 October 2013
• Neon
  ...ve been replaced by [[LED]]s in modern electronics, but are still used for mains power indication. ...connected from live to switched live. This works fine with with filament, mains [[halogen]] & 12v halogen, and iron ballasted [[fluorescent]]. Connecting f
  8 KB (1,352 words) - 19:08, 7 October 2014
• Smoke Detectors
  Mains powered interlinked detectors with no battery backup/ backup. Grade E is no Mains powered interlinked detectors with battery/standby backup. This is the stan
  10 KB (1,750 words) - 14:41, 9 April 2011
• Unvented DHW
  ...cylinder comes directly from the cold water main, and is at (or nearly at) mains pressure. ...erties with multiple baths and showers. Hot water is supplied at (or near) mains pressure, and will drive showers without the need of additional pumps.
  15 KB (2,499 words) - 21:20, 5 May 2021
• Central heating flushing
  #Mains pressure flushing #dumping the dirty water to a foul drain whilst mains water is continually added via the powerflushing reservoir tank until the w
  16 KB (2,640 words) - 10:54, 17 February 2020
• Electricity Basics
  The mains plug is the one with the 3 pins sticking out. What it plugs into is a socke UK mains is 230 or 240v ac 50Hz. 50Hz means that the voltage cycles 50 times per sec
  9 KB (1,469 words) - 16:01, 19 October 2015
• Camera video surveillance
  ...ontrol room, probably other options too. Will you plug an adaptor into the mains for every camera, buy a control console, or clip wires to a car battery.
  4 KB (725 words) - 23:39, 31 October 2021
• Hex bits
  ===Mains drills=== ...s drills now, but a mains drill can be used as a scrwedriver if necessary. Mains drills are not designed to drive hex screwdriver bits. They will do so happ
  10 KB (1,674 words) - 19:40, 23 March 2014
• Electrical connection
  ===Mains plugs=== [[Crimp]]ed flex ends can be safely used in mains plugs and other screw connectors. Ideally the [[flex]] should be twisted be
  13 KB (2,188 words) - 00:15, 15 December 2013
• Multimeter
  ...s the best instrument to test for mains leakage, as it tests insulation at mains voltage or above, whereas a multimeter typically tests it at 1.5v - 12v. De ...the appliance is on when leakage testing. If testing a (disconnected from mains) oven for example, all heating elements should be switched to on.
  18 KB (2,834 words) - 01:44, 6 March 2018
• Trace
  How to trace the wiring of a mains circuit.
  4 KB (679 words) - 22:49, 26 July 2010
• DIY Real time mains power meter
  ...eading of the current flowing at that moment. Multiply that number by your mains voltage (typically 240V), and you will have a an indication of the total po ...ad may be "reactive" - i.e. where a load stores some energy on part of the mains cycle, but then releases it later. This means not all of the current you ca
  18 KB (3,141 words) - 14:49, 2 December 2022
• Halogen Lights on Long Cable
  * [[Halogen Lighting|mains voltage halogen]] * any other mains voltage lighting
  15 KB (2,298 words) - 09:49, 10 May 2013
• Backup power
  Non-maintained lights will light up automatically when mains power fails. (Maintained units are designed for a slightly different job.) ...ailable with a battery backup pack built in which will light the tube when mains fails. Operation on battery is usually at much reduced power with these. Wh
  16 KB (2,755 words) - 21:34, 22 October 2022
• Central Heating maintenance without draining down
  ...system (traditionally in the loft). The tank will usually be refilled from mains cold water via a ballcock or float valve. There are normally three connecti ...in the tank will fall enough that the float valve will refill it from the mains supply. This means that the system can refill itself automatically (and ind
  11 KB (1,971 words) - 11:37, 14 July 2022
• Power factor
  ...any instantaneous moment, ie maximum current flows at voltage peaks of the mains supply. ...stive load being driven from the mains, draws current in sympathy with the mains voltage; as V rises, the current rises, and as V falls current falls. At th
  21 KB (3,536 words) - 14:03, 30 June 2022
• Current activated switch
  One leg of the mains feed to the load is threaded through the centre hole of the current transfo The relay used has [[mains]] rated contacts, and will typically be located close to the load to be swi
  12 KB (2,098 words) - 19:39, 9 September 2017
• Earthing and Bonding
  ...k of the machine "live". Since the case is connected (via its 13A plug) to mains earth, a high current will flow to earth which will either blow the fuse in ...hock risk. (i.e. even if for a short while the tap in the bathroom is at [[Mains Voltage]] due to a fault in your immersion heater, the equipotential bondin
  12 KB (1,937 words) - 23:06, 31 January 2024
• Dimmers & Switchbanks
  * Fully compatible with mains filament bulbs * Fully compatible with mains [[halogen]]s.
  12 KB (1,868 words) - 17:49, 19 February 2023
• Extractor fan wiring
  This article describes how mains powered extractor fans of the type often found in bathrooms and shower room ...isolation switch that will interrupt all live conductors (i.e. including [[Mains Voltage#Why is Neutral a Live_wire?|neutral]]). This is to allow safe clean
  11 KB (1,928 words) - 13:06, 5 January 2024
• Earthing & equipotential bonding
  ...a socket with line and neutral reversed (!), the metalwork will be at full mains voltage. ...ing live, and do not require an earth connection. This means that a 2-core mains lead can be used and internal earth connections are not needed.
  11 KB (1,751 words) - 02:17, 6 September 2017
• Bathroom electrics
  ...ly prevented from entering zone 2. This is usually done by limiting [[Flex|mains lead]] length on the appliance. ...ds to use common sense in the selection of fittings. Although conventional mains lamp fittings ''may'' be appropriate in large rooms where there is little s
  12 KB (2,022 words) - 23:15, 23 August 2021
• Pattress
  [[Plastic]] pattresses intended for mains use are made from thermoset plastic. These are completely rigid & don't sof ...They don't provide the same [[heat]] & [[fire]] protection and aren't for mains use.
  12 KB (1,854 words) - 09:22, 15 June 2020
• Vacuum Cleaner Review
  * short mains cable ===Black & Decker hand held mains vac===
  6 KB (958 words) - 10:04, 5 November 2021
• Showers
  ...design an important distinction is between systems supplying hot water at mains pressure those supplying at low pressures. ==== Mains pressure systems ====
  21 KB (3,675 words) - 17:26, 8 January 2022
• Mains power restored alarm, non contact
  ...access to a backup power source such as a generator or a battery bank and mains inverter, then you can safely switch power for the whole property between a ...r? This article explores a small project to make identifying when the grid mains power is restored, easy!
  20 KB (3,407 words) - 12:35, 19 November 2022
• Droppers
  * Running some 110v appliances off 240v mains Droppers can also be used with a lot of switched loads, when the rise to full mains voltage doesn't matter when the load is not drawing current.
  29 KB (4,453 words) - 10:51, 31 December 2018
• Wells
  '''Wells''' are mostly used for water supplies where mains [[Water|water]] is not installed. They may also be used at metered properti
  3 KB (480 words) - 01:07, 12 November 2011
• Drain Heat Exchanger
  ...anger. Double walled construction should be used, with 2 [[wall]]s between mains and waste water, and the failure of any join should not cause contamination * Approx temp at mains water incomer: summer 15C, winter 5C, estimated ave 10C
  10 KB (1,490 words) - 03:00, 16 November 2014
• Lawn mower
  ...u'll have live pins sticking out. Its always socket with holes nearest the mains plug, plug with pins nearest the motor
  5 KB (849 words) - 16:45, 28 August 2014
• Dating Old Electrics
  [[image:Mains adaptor 5A wooden 2855-5.jpg|300px|right]] *Single insulated figure of 8 speaker type flex used as mains lead: until 1976 in UK
  6 KB (828 words) - 13:08, 9 September 2020
• Lamp life
  : General Lighting Service, traditional mains filament bulbs ...aising their operating voltage slightly. A transformer can add 20v to the (mains voltage) supply for GLS filament bulbs, and thereby obtain 30% - 40% more l
  19 KB (2,961 words) - 18:26, 6 September 2017
• Boiler Evolution
  No electrical connection to mains so non-electrically operated main gas valve/thermostat etc. * Main burner which operates when mains power is applied to boiler (from system controls).
  7 KB (1,086 words) - 02:35, 30 July 2017
• Low voltage wiring
  ...ectricity distribution network's view, whereas most of us would not regard mains as low voltage. * [[Cables|Mains wire]]
  16 KB (2,584 words) - 13:30, 25 September 2017
• Earthing Types
  ...T. You will sometimes see these referred to in questions and answers about mains wiring. ...pair of rather scabby underground cables entering the property. One is the mains feed in, and the second is a feed out to the adjacent property. Here you ca
  12 KB (1,916 words) - 00:37, 24 October 2020
• Microwave repair
  We can't recommend it. A mains shock has only a slight risk of death, but over a thousand volts at high cu ...ve the whole outer cover - this can expose lethal high voltages (far above mains voltage).
  16 KB (2,642 words) - 21:10, 11 November 2013
• Installing an electric shower
  ...nstantaneous electric shower. This is the type of unit that takes a single mains cold water feed, and heats the water as it passes through the shower unit " ...flow of warm water - especially in the depths of winter when the incoming mains water is particularly cold.
  12 KB (2,082 words) - 23:04, 31 January 2024
• Duct Tape
  ...atching of leaking [[Plumbing|pipes]] at low pressure (ie not [[water]] at mains pressure)
  3 KB (479 words) - 15:42, 12 June 2018
• Historic Mains Cables
  * Once commonly used for mains [[CU|incomer]] insulation ...haped flex is now used as speaker wire, but was used as a standard type of mains flex until the mid 1970s. Less often a 3 core version of this was seen.
  7 KB (1,056 words) - 19:04, 25 January 2019
• Mitre saw review
  * Mains powered laser, no [[battery|batteries]] needed
  3 KB (462 words) - 00:16, 23 July 2019
• Telephones, analogue to digital conversion
  ...s on a working internet connection. This normally means that you also need mains power to run the broadband network equipment. So phone line access may no l ...g a mains voltage supply using batteries and an inverter. So they can keep mains powered kit running for a while - at least until the battery runs out)..
  15 KB (2,671 words) - 22:26, 20 February 2024
• Washing machine repairs - theory
  ...asher, watch you don't put undue stress on the [[water]] hose(s), water at mains pressure has a curious knack of getting everywhere you don't want it to go. # First eliminate the [[fuse]] in the [[plug]], or a faulty mains [[socket]].
  14 KB (2,610 words) - 18:51, 16 May 2013
• Discharge lighting
  ...uitable ballast, never connect a bulb direct to the [[:Category:Electrical|mains]]. The ballast is built into the fitting. ...high voltage starting pulses with some of these lamp types, so use a heavy mains [[flex]].
  8 KB (1,292 words) - 10:35, 7 February 2019
• The power tool FAQ
  == Should I buy Mains or Cordless? == There are now mains and cordless versions of nearly every power tool, although some have taken
  21 KB (3,674 words) - 02:02, 29 September 2023
• Cat
  ...tor plus sprayer. A car windscreen sprayer can be used, or a solenoid on a mains pressure system.
  3 KB (526 words) - 00:45, 30 November 2017
• MCB
  Some installations with mains [[Filament Lamps|filament lighting]] on type B MCBs are prone to nuisance t * MCBs often trip before the [[Fuse|mains plug fuse]] with a fault in an appliance, fuses seldom have this issue.
  7 KB (1,227 words) - 10:28, 25 May 2023
• Makita HR2450 SDS Drill Armature Replacement
  With the machine disconnected from the mains, Remove the rear terminal cover with the three screws in the back:
  3 KB (602 words) - 11:46, 3 July 2015
• Immersion Heaters
  ...n the UK, and is a widespread occurrence. In fact the principle of feeding mains electricity direct through the [[water]] is standard practice in industry, *Gas (mains) about 4p/unit, factoring in boiler inefficiency
  8 KB (1,302 words) - 20:19, 8 September 2018
• ELCB
  ...the neutral-earth loop, preferably by means of a transformer fed from the mains, or alternatively from a d.c. source the polarity of which is rapidly and c ...eeding 45 volts, obtained from a double-wound transformer connected to the mains supply, shall be applied across the neutral and earth terminals (or neutral
  12 KB (2,029 words) - 20:32, 28 September 2017
• Thermal Stores and Heat Banks
  '''Thermal stores''' and '''heat banks''' provide hot water at mains pressure, giving excellent performance from showers and spray mixer taps. T A container of water is heated by the boiler or immersion heater etc. Mains pressure cold water passes through a [http://en.wikipedia.org/wiki/Heat_exc
  11 KB (1,798 words) - 17:36, 14 April 2022
• Doorbell
  * The entire system is rated to suit the sounder. In some cases this means a mains rated system. AC only bells with no switching also exist. These use a hammer vibrating at mains frequency. If used in series, these high speed bells and a low speed interr
  22 KB (3,383 words) - 18:36, 2 March 2017
• Motorised Valves
  ...ormation on providing noise and transient suppression when using relays in mains electrical systems. Alternatively, one can also get relays that include con ...plastic one gang surface socket outlet boxes. The top box houses the DPDT mains relay as shown in the diagram. The relay is an 8 pin plug in type. Under wo
  16 KB (2,704 words) - 10:24, 26 May 2020
• Wallwart
  ...commonly used to run small appliances at low voltage. The power supply and mains plug are one and the same item. * less than 3mm separation between mains and low voltage PCB tracks
  15 KB (2,573 words) - 14:59, 2 April 2015
• Halogen Lighting
  ...Dichroic lamps are usually only found in low voltage halogens rather than mains ones. =Low Voltage or Mains Halogen=
  26 KB (4,302 words) - 10:08, 30 November 2019
• User Reviews - Power Tools - SDS Drills
  ...ck would need to be inserted to use plain shanked bits or other tools. The mains lead is of ample length (approx 3m) and of a heavy rubber construction that
  3 KB (552 words) - 03:39, 9 January 2022
• Light bulb blowing
  ...bulb becoming ionised. The high temperature and large electric field (full mains voltage across a very small gap) which occurs when the filament breaks can
  4 KB (750 words) - 22:02, 6 September 2014
• Appliance Classes
  ...nductor coloured green & yellow. The earth connection is via a 3-conductor mains flex.
  4 KB (645 words) - 17:05, 9 May 2014
• Lighting Circuits Without an Earth
  Most unearthed lighting circuits are wired with [[Historic Mains Cables|historic cable]] (often old imperial twin PVC) that can handle the r
  5 KB (738 words) - 22:55, 23 September 2017
• Electrical Glossary
  : A mains powered item other than a light fitting or an independent motor. ; [[Historic Mains Cables|Ashathene]]
  31 KB (4,494 words) - 09:57, 12 July 2019
• Gas leak
  fixed the problem, and disconnected the entire supply at the mains,
  4 KB (770 words) - 22:46, 24 September 2022
• Circular saw
  | valign="top" | This class of tool is now less commonly found as a mains powered tool, although is quite common as a cordless tool. The range and ch For general use a mains powered saw is a much better bet, however, cordless saws are now available.
  14 KB (2,559 words) - 16:50, 30 January 2017
• Surface wiring tips
  Mains wiring is not permitted to be concealed behind skirting boards, but special Mains wiring may be concealed behind cornicing, either special cornice trunking o
  11 KB (1,780 words) - 19:16, 4 December 2016
• Pipe repair
  * If its mains cold water, turn off the main stopcock and open a tap lower than the damage
  4 KB (732 words) - 01:09, 30 November 2014
• Cables
  *Mains [[flex]] *[[Historic Mains Cables]]
  21 KB (3,196 words) - 16:58, 19 April 2023
• Lead acid battery construction
  ...ers above the rated battery voltage. This can be a mains charger, or where mains isn't present a lower than 12v battery may be connected to a 12v system for
  11 KB (1,638 words) - 23:27, 2 January 2020
• Vacuum cleaner
  [[:Category:Electrical|Mains power]] socket outlet on the machine for running [[Power Tools|power tools] A self retracting mains lead is easier than winding [[flex]] onto pegs. It makes the machine easier
  10 KB (1,577 words) - 10:43, 5 June 2012
• DIY Heat Bank
  ...er). A service isolation valve and in-line 'Y' strainer are visible in the mains water inlet (bottom right) which are not shown in the diagram. The electric
  5 KB (752 words) - 10:32, 21 November 2017
• Die grinder
  * Around 30,000 rpm means they drill far faster than mains or cordless drills ...y on the fact that speed is proportional to voltage. This is true for both mains and low voltage machines.
  10 KB (1,590 words) - 16:08, 3 April 2018
• How boilers work
  ...ning. There are no electronics. The only electrical connection is a single mains input of line, neutral and earth and the boiler runs when power is applied. ...t no 'intelligence', no firmware, no digital displays. It does have both a mains supply which is normally on all the while (except for maintenance) and a 'd
  18 KB (3,246 words) - 20:32, 17 October 2015
• Co-ax Cable
  * Use the suitably-sized round mains cable clips. Avoid using clips which deform the cable, such as [[fence|fenc
  6 KB (948 words) - 00:46, 6 October 2017
• TT Earthing
  ...lel connections to earth (such as main equipotential bonds to water or gas mains) are disconnected when the reading is taken. Note that any occupants of the ...e current to flow into it. A safe way to do this is to use a double-wound mains transformer with a secondary voltage of around 24V (exact value not critica
  13 KB (2,140 words) - 13:45, 17 December 2014
• Sealed system FAQ
  * The system can be flushed out under pressure using the mains water supply. ...sure continues to rise. This continues until either the heating system and mains pressure are similar or the relief valve opens and begins dripping. Disconn
  17 KB (3,123 words) - 00:17, 25 March 2014
• Thermostat
  Mechanical stats are usually designed for operation in [[Electricity Basics|mains voltage]] control systems. The [[Electricity Basics|240v]] compensation res Wireless CH thermostats avoid the need to run a [[Cable|mains wire]] to the stat, and are [[battery]] powered. They can be moved from one
  16 KB (2,695 words) - 12:01, 24 September 2022
• RCD
  *When a RCD does operate, it can take up to two cycles of the mains (i.e. 40 msec or even more for low leakage situations). ...e after a trip condition is detected, and usually within two cycles of the mains (40 msec for UK 50Hz supplies).
  40 KB (6,564 words) - 10:30, 25 May 2023
• Fixing washing machine leaks
  ...f your washing machine. This will expose lots of wires and switches all at mains voltages. If you haven't already done so, make sure that your machine reall
  6 KB (1,118 words) - 17:30, 8 January 2022
• Oscillating tools
  Tools on the market are available in both mains-operated and cordless (Li-Ion powered) models, at a wide range of price poi |Bosch do a couple of tools, a green bodied DIY class machine that is mains powered, and a blue "pro" range cordless tool. These have a ring of registr
  13 KB (2,110 words) - 23:58, 10 September 2018
• Installing a concealed shower mixer valve (retrofit)
  ...thermostatic mixer). However its days were numbered once the transition to mains pressure hot water was complete. Sure enough, a year later it became a tad
  6 KB (982 words) - 23:52, 23 April 2020
• Uplighters
  * Ability to use either GLS, almost any [[CFL Lamps|CFL]], LED, mains halogen, plus the large lamp space available makes this approach the most f
  6 KB (887 words) - 21:54, 29 September 2018
• Reciprocating saw
  ...y, check the power switch and speed controller are OK. Also check that the mains lead is undamaged.</p>
  6 KB (1,145 words) - 01:14, 21 September 2023
• Ring circuit
  ...fact that one could simply connect a cable between two existing [[Historic Mains Cables|15A radially wired sockets]] to make one 30A ring, then adding as ma ...d supply the magnetic field. This can lead to interference such as such as mains hum in poorly substandard audio devices.
  17 KB (2,768 words) - 14:22, 28 June 2022
• 17th Edition Consumer Units
  One limitation of this type of CU is that if mains powered smoke alarms are installed then the regs cannot be met if there are
  6 KB (1,049 words) - 11:14, 4 September 2016
• Dehydrator
  ...re powered by a PC PSU provides even heating, and can be controlled on the mains side by a bimetal oven thermostat; these should be covered by a netting lay
  5 KB (946 words) - 18:39, 4 May 2012
• Outdoor lighting
  * [[Halogen]] reflector lamps, mains * [[Halogen]] reflector lamps, mains 1500hrs, but expect premature failures
  14 KB (2,378 words) - 10:42, 24 June 2013
• Angle grinder
  ...lable if needed. Better than losing it is to cable tie it to the grinder's mains lead. ...nothing that will slip, plus the inertia of a kilowatt or so of high speed mains motor, so the throwing force is too high to control.
  20 KB (3,302 words) - 19:26, 8 January 2022
• Installing multipoint air conditioning (2)
  ...and cavity fluff injection, but it is stil a big place to heat. There's no mains gas, the current central heating is from a Potterton Statesman 28kW oil-fir
  6 KB (1,072 words) - 11:08, 14 January 2022
• Audio distribution
  ...mber of local [[wallwart]]s, or the need to run wires from the speakers to mains sockets. Its best not to route your network wiring with mains wiring.
  26 KB (4,414 words) - 18:31, 7 November 2009
• Battery
  ...the most common BIOS battery in desktops. These retain BIOS settings when mains is unplugged.
  8 KB (1,200 words) - 20:01, 19 October 2015
• Networking
  ...on the wired theme is the use of Homeplug devices. These use your existing mains electricity wiring to act as a network. Not usually as fast as a traditiona ...s LAN side. This enables the router to be connected to a network via other mains wiring and other homeplug devices rather than by a network cable or WiFi. H
  19 KB (3,399 words) - 16:57, 9 November 2021
• Home owners instruction manual
  * Is there mains drainage?
  8 KB (1,230 words) - 17:29, 21 August 2022
• Electronics repair
  Component replacement requires that the equipment be disconnected from the [[mains]], and stripped down enough to allow the offending circuit board to be acce ...mains powered devices, so take care to make sure its disconnected from the mains before work.
  26 KB (4,324 words) - 01:17, 7 June 2016
• Lighting
  ...for [[Emergency Lighting|emergency lights]] that are not connected to the mains. Gas lighting has much better long term reliability than [[battery]] based
  8 KB (1,233 words) - 22:23, 15 December 2019
• Rewiring Tips
  ...Lighting|halogens]] are less efficient and less reliable than 12v halogen. Mains bulbs are lower efficiency compared to low voltage ones, more fragile, shor ...toughened glass covers eliminate any possible risk from water splash onto mains lighting. Halogen capsules without glass covers are an explosion risk, and
  40 KB (6,736 words) - 22:06, 28 September 2019
• Electric heating
  ...other mainstream [[heating]] options, at around 3x the [[energy]] cost of mains [[gas]]. ...f the most common choices. The run cost is still significantly higher than mains [[gas]].
  17 KB (2,857 words) - 20:46, 2 August 2017
• Vehicle
  ...for 500kg load. I'm sure it can take more though. It charges from the 240v mains and comes with a 5m cable ending in a 16-amp 3-pin "commando" plug as used
  7 KB (1,256 words) - 23:38, 17 February 2023
• Fluorescent Lighting
  ...ost popular ballast type in Britain and most other countries with 220/240V mains. They are easily identified by their starting behaviour, they usually flash ...in a tank of salt water. This variable resistance goes in series with the mains feed to the fitting. Much the same problems as the above, plus the risk of
  32 KB (5,217 words) - 13:54, 9 November 2014
• Old electrical installations
  |Badly perished [[Historic Mains Cables|rubber insulation]]
  9 KB (1,461 words) - 04:49, 1 December 2012
• Cable crimping
  ...rics. This is not, however, a recommended technique for extending flexible mains cables connected to appliances.
  10 KB (1,655 words) - 09:03, 8 October 2021
• CFL
  * A 270k resistor will dissipate 0.2w on 240v mains. ...X & Y capacitor classifications, 600vdc caps were often used on unfiltered mains, but this is no longer compliant.
  27 KB (4,339 words) - 20:06, 16 March 2017
• House Wiring for Beginners
  ...gives an overview of a typical basic domestic 240V [[:Category:Electrical|mains wiring]] system as used in the UK, then discusses or links to the common op *[[Ring circuit]]s from 32A [[MCB]]s in the [[#CU|CU]] supplying mains sockets. 2 such rings is typical for a 2 up 2 down, larger houses have more
  26 KB (4,100 words) - 00:12, 16 September 2021
• Boiler repair
  ===Safety Guidelines for High Voltage and/or Mains Powered Equipment.=== ...ing repair procedures, the cabinet will likely be open an occasionally the mains supply will need to be switched on. Depending on overall conditions and you
  51 KB (8,883 words) - 10:51, 26 July 2017
• Shed
  * [[Taking electricity outside|Mains Electricity]] ** easier than mains installation
  20 KB (3,173 words) - 19:36, 27 January 2013
• Electrical Installation
  ...tential for interference that running adjacent to it. If you need to route mains and other cables in trunking then use segregated trunking designed for the ...a reading at the time there is a significant transient disturbance to the mains voltage, the meter may fail catastrophically - it can quite literally explo
  47 KB (8,300 words) - 01:11, 29 May 2022
• Finding damaged cables
  ...e edge of a pool. <blockquote>''[1] At DC and low AC frequencies like 50Hz mains, cables behave in fairly simple ways. The most common characteristic one mi
  12 KB (2,236 words) - 01:13, 6 June 2022
• Boiler choice FAQ
  ...appliance in that it is the only appliance which is connected to all four mains services. Offers HW at mains pressure together with excellent flow. These are expensive and can only be
  50 KB (8,759 words) - 12:00, 24 September 2022
• Free Stuff
  * Tongues are NOT rated for supplies connected to the mains, such as [[wallwart]]s.
  10 KB (1,662 words) - 00:23, 9 September 2012
• Hand tool
  * Allow much finer control than mains electric drills * hand held lamp designed to use up your stock of spare mains bulbs
  18 KB (2,563 words) - 17:18, 19 October 2015
• Drilling Techniques
  ...low power cordless drills can struggle with them (eg 3.6v etc). Low power mains drills are generally ok.
  13 KB (2,275 words) - 08:52, 19 March 2018
• Motor repair
  Swapping mains polarity was sometimes used in the past to enable such motors to function w
  14 KB (2,327 words) - 04:05, 7 March 2015
• Dishwasher repair
  ...hSGS43A60.JPG|caption|frame|left|If you're having trouble reconnecting the mains inlet wires you can release the inlet unit with these two tongues, and slid
  15 KB (2,673 words) - 15:53, 5 May 2017
• Plumbing
  ...minations (known as "Anacondas") for connecting gas meters to incoming gas mains.
  15 KB (2,471 words) - 12:45, 24 January 2022
• Drilling FAQ
  ...lled at relatively low speeds in the 300 - 900 rpm range, so many standard mains drills are too fast, resulting in an overheated drill-bit. A workaround for ...a tool shop, or keep the key in the chuck, or better still, tie it to the mains flex some 18" from the drill.
  32 KB (5,862 words) - 23:31, 30 August 2016
• CRT picture discolouration
  * stored mains power in reservoir capacitors
  15 KB (2,523 words) - 02:54, 13 January 2023
• Nailer
  | valign="top" | Electric nailers come in two forms: mains and cordless. Most of them are designed to use the smaller gauges nails, ty
  17 KB (2,845 words) - 17:23, 9 August 2013
• Glossary
  : screw connector strip for mains cables. : the flow of mains current to earth, sometimes via a human. Earth current is often fault curre
  59 KB (8,842 words) - 21:43, 1 November 2021
• DIY Web Sites
  *[http://www.mcdonald-engineers.com/ Mcdonald Engineers] Unvented mains pressure HW cylinder
  19 KB (2,776 words) - 21:21, 24 March 2020
• Monobloc Air to Water small
  ...ted indoors. Removal leaves a grommet hole so I drill the case and put the mains isolating switch over it.
  14 KB (2,541 words) - 16:23, 6 December 2022
• Clothes dryer
  ...large bore plumbing is needed to run the dehumidifier, just plug it into a mains socket.
  19 KB (3,195 words) - 09:10, 13 February 2019
• Changing a consumer unit
  Take care if there is any old [[Historic Mains Cables#VIR|rubber cable]] present, since these will have fragile insulation
  19 KB (3,370 words) - 10:23, 25 May 2023
• Electrical Circuit Faults
  ...ad categories: Ring final circuits (often incorrectly referred to as "Ring Mains") and Radial circuits. The effects of the faults described above can be dif
  23 KB (3,711 words) - 10:08, 3 August 2017
• Saw
  ...timber much quicker than running an eye across the blade. Some lasers are mains powered, some require batteries. The beam position does need correct adjust
  18 KB (2,962 words) - 01:40, 29 September 2017
• Calculating A Cable Size
  Normally mains supplies in the UK should meet the specification of [https://www.gov.uk/gov
  23 KB (3,726 words) - 23:12, 31 January 2024
• The secret diary of a bathroom refurbishment
  ...header tanks, needed to be connected directly to the cold feed to the new mains pressure hot cylinder).
  48 KB (8,920 words) - 13:07, 28 December 2021
• Vaillant Ecotec plus 624 repair
  ...main PCB with the top of the electronics box removed. A hybrid board with mains entering at the top right, feeding into the front panel switch and fuse. Th
  23 KB (4,272 words) - 22:52, 7 August 2023
• Save energy
  This costs much more than mains gas or oil to run.
  20 KB (3,343 words) - 11:58, 24 September 2022
• Filament lamp
  Mains is rectified with a bridge rectifier, then a small capacitor placed across
  22 KB (3,502 words) - 16:47, 27 January 2015
• Split-type Room Air Conditioner
  ...mains supply. You can see where I have removed the knock-out slot for the mains supply cable, and also the much larger moulded knock-out available for use
  51 KB (9,092 words) - 18:39, 4 November 2021
• Structured wiring system
  When deciding on cable runs try to avoid routes near mains wiring and other possible sources of interference, and also cables which ar
  29 KB (5,212 words) - 10:52, 13 June 2023
• Solar Thermal
  ...s to heat hot water, and one using the flat plate to heat warm water. Cold mains water feeds the warm water tank, and warm water feeds the hot water tank.
  30 KB (4,902 words) - 15:18, 11 August 2012
• Fridge
  * Replace the 15w [[lamp]] with a 1w mains [[LED]]
  26 KB (4,186 words) - 13:07, 12 September 2019
• Taking electricity outside
  ...es are pessimistically high, and may cause difficulties when designing sub mains for higher current supplies. In these circumstances is it advisable to actu
  45 KB (7,700 words) - 01:21, 14 May 2024
• DIY Loft conversion
  ...work that well in the first place. Going for a high power combi meant good mains pressure showers, and moderate bath filling speed.
  69 KB (12,721 words) - 22:49, 31 January 2024