IFREEQ Docs
  • Introduction
  • Update Log
  • General Knowledge
    • About IoT
    • Electricity
      • Plug & socket types around the world
        • Power plug & outlet Types A & B
        • Power plug & outlet Type C
        • Power plug & outlet Type D
        • Power plug & outlet Type E
        • Power plug & outlet Type F (Schuko)
        • Power plug & outlet Type G
        • Power plug & outlet Type H
        • Power plug & outlet Type I
        • Power plug & outlet Type J
        • Power plug & outlet Type K
        • Power plug & outlet Type L
        • Power plug & outlet Type M
        • Power plug & outlet Type N
        • Power plug & outlet Type O
      • Full list: Plug, socket & voltage by country
      • Map showing the spread of the different plug types worldwide
      • Useful information for travellers
      • History of domestic electricity
        • Why isn’t there a universal standard electric plug?
        • Why isn’t there a standard voltage around the world?
      • Three-phase electric power (industrial applications only)
    • Certifications
    • Home Automation Brand
    • Home Automation Catalog
    • Industry Term
    • Network Term
    • The Third-party Control
      • AliGenie
      • Amazon Alexa
        • FAQs About Amazon Alexa
      • DuerOS
        • FAQs About DuerOS
      • Google Assistant
        • FAQs About Google Assistant
      • Home Assistant
        • FAQs About Home Assistant
      • HomeKit
        • FAQs About Homekit
      • IFTTT
      • Xiao AI
      • Yandex Alice
        • FAQs About Yandex Alice
  • Developer
    • Introduction
      • What is Tuya Smart?
      • What does Tuya do?
      • Tuya Smart Cloud Platform Overview
      • Advantages
      • Terms
      • Limits
    • Quick Start
    • Configure in Platform
      • Create Products
      • Function Definition
        • Overview
        • Standard Functions
        • Custom Functions
        • Cloud Functions
      • Design App UI
      • Configure Hardware
      • Cloud Configuration
        • Introduction
        • Upgrade Firmwares
        • Set up Multilingual UI
        • Manage Alarms
        • Configure Network for Devices
        • Enable Toggles on App
        • Automate the Smart Devices
      • Mass Production
    • Device Development
      • Access Mode MCU
        • MCU Access Guide
        • Wi-Fi General Solution
          • Wi-Fi Module MCU Development Overview
          • Hardware Design Reference Wi-Fi
          • Software Reference Wi-Fi
            • Tuya Cloud Universal Serial Port Access Protocol
            • Overview of migrating Tuya's MCU SDK
        • Wi-Fi Power Off Fast Connect Device Solution
          • Overview
        • Zigbee General Solution
          • Overview
          • Software development
            • Tuya Zigbee module UART communication protocol
          • Hardware Design
        • BLE General Solution
          • BLE Module MCU Development Overview
          • BLE Hardware Design
        • NB-IoT General Solution
          • NB-IoT Development Guide
          • Introduction to NB Module - NM1
      • Access Mode SoC
        • SoC Development Overview
        • Lighting
          • Guidance
          • Design
          • Test
        • Electrician
          • Guidance
          • Design
          • Test
      • Access Mode Link
        • Wi-Fi Chip SDK
          • Tuya Wi-Fi SDK Reference
          • Development Environment Setup When Using Tuya Wi-Fi SDK
        • BLE Chip SDK
          • TUYA BLE SDK User Guide
        • Zigbee Chip SDK
          • TUYA Zigbee SDK Document
      • Cloud Mode
        • Wi-Fi&BT Dual Mode Module
        • Wi-Fi Module
        • Bluetooth Module
        • Zigbee Module
        • Sub-G Module
      • Tuya Development Boards
      • Access Mode Simmulator
        • Module Debugging Assistant Instruction
      • Embedded License
        • Embedded open source license
    • Smart Product Solution
      • Gateway
        • MCU Access
        • Link SDK Access
        • PCB Details
      • HouseHold
        • Cleaner Robot
        • Air Conditioner
      • IPC
      • Lock
        • BLE Lock
        • Wi-Fi Lock
        • Zigbee Lock
      • Remote Control
      • Voice Product
        • Domestic Voice Speaker Solution
        • Domestic Voice Infrared SoC Solution
        • Overseas Voice Solution
        • Design Reference Materials - Alexa Module
        • Design Reference Materials - Domestic Voice Module
    • Firmware
      • S8E
  • FAQs
    • Device Development
      • Cloud Module
        • Wi-Fi Module
        • Zigbee Module
        • BLE Module
        • GPRS Module
        • NB-IoT Module
        • Dual-mode Module
        • Other Module Issues
      • Access Mode SoC
      • MCU Access Mode
        • Wi-Fi General Solution
        • Zigbee General Solution
        • BLE General Solution
          • BLE Single-point Solution
          • BLE Mesh General Solution
          • Other Issues of BLE Solution
        • NB-IoT General Solution
        • Other Issues of MCU Access Mode
      • Module SDK Development
        • BLE Chip SDK(single point)
        • Linux General SDK
        • NB-IoT Chip SDK
        • Wi-Fi Chip SDK
        • Others about Module SDK
      • Other Issues of Device Development
    • Smart Product Solution
      • Electrical
        • Outlet
        • Scenario Switch
        • Switch
      • Lighting
        • Wi-Fi Lighting
        • Zigbee Lighting
        • Bluetooth Lighting
        • Other Issues of Lighting
      • Lock
        • BLE Lock
        • NB-IoT Lock
        • Wi-Fi Lock
        • Zigbee Lock
        • Other Issues of Lock
      • Sensor
      • Gateway
        • BLE Gateway
        • Wireless Gateway
        • Zigbee Gateway
        • Other Issues of Gateway
      • IPC
      • Infrared Products
        • Infrared remote control
        • Infrared Capability Introduction
        • Infrared Code Library
      • Sweeper
      • Household Appliances
      • Pet Supplier
      • BLE Mesh Typical Solution
        • BLE Mesh Lighting Solution
        • BLE Mesh Electrical Solution
        • BLE Mesh Sensor Solution
        • BLE Mesh General Solution
    • Products
      • Electric
        • Smart Switch
        • Smart Plug
        • Curtain Controller
      • Lighting
      • Security
        • E202/203 Smart Lock
    • More
  • Links
    • ifreeq.cn
    • ifreeq.com
    • AIoT Expo
    • Official Store
Powered by GitBook
On this page

Was this helpful?

  1. General Knowledge
  2. Electricity
  3. Plug & socket types around the world

Power plug & outlet Type G

PreviousPower plug & outlet Type F (Schuko)NextPower plug & outlet Type H

Last updated 4 years ago

Was this helpful?

Type G is mainly used in the United Kingdom, Ireland, Cyprus, Malta, Malaysia, Singapore and Hong Kong. (Click for the full list of all countries that use type G)

This 13 amp plug has three rectangular prongs that form an isosceles triangle. The central earth pin is 4 by 8 mm and 22.7 mm long. Line and neutral pins are 4 by 6.35 mm and 17.7 mm long, on centres spaced 22.2 mm apart. The centre-to-centre distance between the earth pin and the middle of the imaginary line connecting the two power pins is 22.2 mm. The 9-mm long insulated sleeves prevent accidental contact with a bare connector while the plug is partially inserted.

British Standard BS 1363 requires use of a three-wire grounded and fused plug for all connections to the power mains. Two-wire class II appliances are not earthed and often have a plastic grounding pin which only serves to open the shutters of the outlet. The lack of such an earth pin on a type C plug makes it impossible to connect it to a type G receptacle, although it can actually be forced into the socket by sticking a pointy object into the centre hole of the power outlet, which opens up the two other holes. Just to be perfectly clear, this is not a piece of advice; it’s simply an observation…

In the UK, the power sockets in a house are connected by means of ring circuits, which are protected by 32 A circuit breakers. This type of wiring is rarely used outside the UK and requires the use of fused plugs. Small appliances, like mobile phone chargers, usually have a 3 A cartridge fuse inside the plug; heavy duty appliances, such as coffee makers, have a plug with a 13 amp cartridge fuse. Almost everywhere else in the world radial circuits are used. In this system each wall socket, or group of sockets, has a circuit breaker at the main switchboard, so there is no need for plugs to be fused. As a result, if you take some foreign appliance to the UK, you can use an adaptor, but technically it must incorporate the correct value fuse. Most would have a 13 amps one, too big for computers for example. Type G plugs and sockets started appearing in 1946 and the standard was first published in 1947. By the end of the 1950s, it had replaced the earlier type D outlets and plugs (BS 546) in new installations in the UK, and by the end of the 1960s, most earlier installations had been rewired to the new standard. Type G wall sockets almost always include switches for extra safety.

UK plugs are no doubt among the safest in the world, but also among the most hulking and cumbersome. That’s why people often make fun of them saying that a British plug is mostly bigger than the appliance it is connected to… Moreover, the bottom-heavy design of the plug makes it a perfect caltrop.

here