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Point (point) n. A sharp or tapered end: the point of a knife; the point of the antenna. An object having a sharp or tapered end: a stone projectile point.

AC power plugs and sockets: British and related types. Plugs and sockets for electrical appliances not hardwired to mains electricity originated in Britain in the 1. These were usually sold as a mating pair, but gradually de facto and then official standards arose to enable the interchange of compatible devices. British standards have proliferated throughout large parts of the former British Empire. BS 5. 46, Two- pole and earthing- pin plugs, socket- outlets and socket- outlet adaptors for AC (5.

Hz) circuits up to 2. V is a British Standard for three pin AC power plugs and sockets. Originally published in April 1. BS 5. 46 is also the precursor of current Indian and South African plug standards. The 5 A version has been designated as Type D and the 1. A as Type M. BS 5. UK, provided the socket has shutters.

BS 1. 36. 3, 1. 3 A plugs socket- outlets adaptors and connection units is a British Standard which specifies the most common type of single- phase AC power plugs and sockets that are used in the United Kingdom. Distinctive characteristics of the system are shutters on the neutral and line (see Concepts and Terminology below) socket holes, and a fuse in the plug. It has been adopted in many former British overseas territories. BS 1. 36. 3 was introduced in 1. United Kingdom used for post- war reconstruction. The plug and socket replaced the BS 5.

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BS 1. 36. 3 plugs have been designated as Type G. Concepts and terminology. The plug has protruding pins (referred to as male) that fit into matching apertures (called female) in the sockets. A plug is defined in IEC 6.

There is an erroneous tendency to refer to power conversion devices with incorporated plug pins as plugs, but IEC 6. In this article, the term 'plug' is used in the sense defined by IEC 6. Sockets are designed to prevent exposure of bare energised contacts. To reduce the risk of users accidentally touching energized conductors and thereby experiencing electric shock, plug and socket systems often incorporate safety features in addition to the recessed contacts of the energized socket. These include plugs with insulated sleeves, sockets with blocking shutters, and sockets designed to accept only compatible plugs inserted in the correct orientation. The term plug is in general and technical use in all forms of English, common alternatives being power plug. The general term is socket, but there are numerous common alternatives, including power point.

These are termed neutral, line and earth. Both neutral and line carry current and are defined as live parts. The protective earth. Historically, two- pin sockets without earth were used in Britain, but their use is now restricted to sockets specifically designated for shavers and toothbrushes. An adaptor (in the context of plugs and sockets) is defined in IEC 6. The brass pins appear relatively solid and large compared to others.

British Standards for plugs (with the exception of BS 4. Since 1. 93. 4, the contacts of a socket have been specified in terms of the pins of the plug, rather than by specifying the contact dimensions. Earthed sockets are designed to be incompatible with two- pin plugs.

Both BS 5. 46. This was revised by the Plugs and Sockets etc. There were concerns that consumer safety was compromised by the substantial quantity of counterfeit and unsafe electrical plugs and sockets being placed on the UK market and also by the provision of electrical equipment without an appropriate means to connect it to the mains supply in the consumer’s home. The regulations include a requirement that all plug types must be tested and certified by a nominated approval body (normally BSI, ASTA- Intertek or NEMKO).

They also require that all mains appliances for domestic use in the UK are supplied with approved BS 1. UK shaver plug (BS 4. Europlug (BS EN 5. The regulations also contain a provision for the approval of non- BS 1. Despite this CE Marking is sometimes fraudulently used, especially on universal sockets.

As electricity became a common method of operating labour- saving appliances, a safe means of connection to the electric system other than using a light socket was needed. According to British Author John Mellanby. Smith in 1. 88. 3, and there were two- pin designs by 1. British) General Electric Company Ltd. Gustav Binswanger, a German Jewish immigrant. A 1. 91. 1 book. Lundberg & Sons of London describes the Tripin earthed plug available in 2.

A and 5 A models. The pin configuration of the Tripin appears virtually identical to modern BS 5. In her 1. 91. 4 book Electric cooking, heating, cleaning, etc. Reyrolle & Company.

The 1. 91. 1 General Electric Company Ltd. Smith in 1. 88. 3. In 1. 88. 5, two- pin plug designs appeared and in 1.

GEC catalogue. These were clearly recognisable as two- pin plugs and sockets, but with no indication as to pin size or spacing, they were sold as pairs. The same catalogue included lampholder plugs for both BC and ES lampholders (capacity unspecified), and also a type of two- pole concentric plug and socket (similar to a very large versions of the concentric connectors used for laptop PC power connections) in the 1 to 5 lights and 5 to 1.

Crompton and Company introduced the first two- pin socket with protective shutters in 1. Edison Swan Company was also manufacturing two- pin plug and sockets in the 1. The Midget Gauge was rated at 3 A, the Standard Gauge rated at 5 A, and the Union Gauge rated at 1. A. Also offered were two- way and three- way . Versions of the concentric plug and socket were now offered rated at 5 A and 1. A. At the same time Lundberg were offering the 2.

A Dot; 5 A Universal and 1. A Magnum, and Tucker were offering a range of 5 A, 1.

A and 2. 0 A plugs and sockets. By the 1. 92. 7 revision of BS 7. A, 5 A, 1. 5 A and 3. A. This was later superseded by BS 3. Two- pin Side- entry Wall Plugs And Sockets for Domestic Purposes.

Following the introduction of BS 4. UK domestic uses for two- pin sockets except for shavers, so BS 3.

Accepts BS 4. 57. US, Australian and Europlugs. Dual voltage, with isolating transformer. BS 4. 57. 3 British Standard Specification for two- pin reversible plugs and shaver socket- outlets defines a plug for use with electric shavers, the pin dimensions are the same as those of the 5 A plug specified in the obsolete BS 3. Electric toothbrushes in the UK are normally supplied with the same plug.

The sockets for this plug are rated at (and limited to) 2. A. BS 4. 57. 3 has no explicit specification for the plug rating, but Sheet GB6 (BS 4.

BSI committee) of IEC 6. It is more usual to find shaver supply units meeting BS EN 6. BS 4. 57. 3, Europlug and Australian. The isolation transformer often includes a 1. V output, and will then accept two- pin US plugs also.

Shaver supply units must also be current limited, BS EN 6. VA and maximum of 5. VA. Note that the plug has the basic characteristics of the modern BS 5. In the early 2. 0th century, A. Lundberg & Sons of London manufactured the Tripin earthed plug available in 2. A and 5 A models.

The Tripin is described in a 1. Lundberg & Sons and its pin configuration appears virtually identical to modern BS 5.

The first British standard for domestic three- pin plugs was BS 3. Hand- Shield and Side Entry Pattern Three- Pin Wall Plugs and Sockets (Two Pin and Earth Type) published in 1. This was superseded in 1. BS 3. 72 Side- Entry Wall Plugs and Sockets for Domestic Purposes Part II which states that there are only minor alterations from BS 3. In 1. 93. 4, BS 3. Part II was in turn superseded by the first edition of BS 5.

Two- Pole and Earthing- Pin Plugs and Socket Outlets. BS 5. 46: 1. 93. 4 clause 2 specifies interchangeability with BS 3. Part II which includes the same four plug and socket sizes. In BS 5. 46 there are no dimensions for socket contacts, instead they are required to make good contact with the specified plug pins. Before the introduction of BS 3.

GH Scholes Ltd (Wylex) introduced (in 1.

Turn an Old Monitor Into a Daily Status Board. My mirror doesn’t come to life and tell me about the rest of my day when I walk in bleary- eyed to the bathroom, as much as I wish it did. An always- on dashboard relaying to me my calendar appointments and the weather would both help me start my day with a better understanding of what I need to get done, and keep me from walking through the city in the rain. Fortunately, with a little tinkering you can turn whatever devices you have lying around into your own DIY status board.

Grab an old PCThe best thing to do with an old PC is repurpose it. Whether it becomes a Linux box for experimenting, a web- focused laptop for guests to play around on, or an arcade machine for old- school gaming is up to you. Nearly any PC can be turned into a status board generator, as long as it can run a web browser. If you’re using a webapp you can just go full- screen on whatever browser you’re into these days and hook it up to a monitor. With a Raspberry Pi you can run Full.

Page. OS and run it there, leaving your precious PC free to host your legally acquired retro games. Get a smart timer. If you want an always- on status dashboard then you’ll need a monitor on which to display the thing. Of course, putting one in your bedroom won’t do wonders for your sleep habits, and an always- on monitor could tack on more bucks to your energy bill than you’re willing to pay. That’s where an outlet timer comes into play, and preferably a smart one. I mean sure, you can use a dumb timer and have your monitor flicker to life from sunrise to sunset, or whenever you’ll be around it. But a smart outlet (even one connected to a motion sensor) would mean your monitor’s on whenever you’re in the room.

We’ve seen a Raspberry Pi combined with a cheap LCD screen to create a smart calendar before, but. Then boom, your monitor’s on, displaying everything from your last horrible tweet to your weekly schedule. Use some dashboard software. Dashboard software is popular among businesses where metrics need to be monitored (site traffic, sales numbers, etc). In addition to boring numbers, dashboard software usually supports more personal bits of information like calendars, tweets, and to- do lists, among others. Free dashboard software like Castor and Freeboard lets you integrate various bits of information into a single display you can blast on a monitor since they play nicely with your browser’s full- screen mode (though it could use a bit of color).

A lot of the primo dashboard software requires a paid subscription, which is pretty bullshit if all you want to do is display some tweets next to your calendar appointments and photo gallery of your horse, Nomenclature. Use an i. Pad and Air. Play. Got an i. OS device, an Apple TV, or some dongles? You can use those to turn whatever display you have into a limited status board with whatever i. OS device you have lying about.

Your i. OS device needs to be running i. OS 1. 0, Apple’s most recent operating system, in order to use the Today View—the leftmost pane on your home screen. Best Bookkeeping Software For Real Estate Business.

From there you can add widgets from whatever apps support them and essentially mirror your i. OS screen onto a TV or monitor.