Type G is mainly used in the United Kingdom, Ireland, Cyprus, Malta, Malaysia, Singapore, Hong Kong and the Arabian Peninsula. Type G mainly used in the United Kingdom, Ireland, Malta, Malaysia, Singapore & the Arabian Peninsula 3 pins grounded 13 A 220 – 240 V socket compatible with plug type G

Type F is used, for instance, in Germany, Austria, the Netherlands, Sweden, Finland, Norway, Portugal, Spain and Eastern Europe. Type F used almost everywhere in Europe & Russia, except for the UK & Ireland 2 pins grounded 16 A 220 – 240 V socket compatible with plug types C, E & F

The power supply used by the refrigerator is inconsistent or the voltage is unstable, causing the compressor to start frequently. The reason is that the voltage is lower than the normal working voltage range of the electrical power supply, and the computer will automatically restart or shut down.

In electrical engineering, spikes are fast, short duration electrical transients in voltage (voltage spikes), current (current spikes), or transferred energy (energy spikes) in an electrical circuit.

Type E is primarily used in France, Belgium, Poland, Slovakia, the Czech Republic, Tunisia and Morocco. Type E primarily used in France, Belgium, Poland, Slovakia & Czechia 2 pins grounded 16 A 220 – 240 V socket compatible with plug types C, E & F

Voltage that is too high can cause premature failure of electrical and electronic components (e.g. circuit boards) due to overheating. The damage caused by overheating is cumulative and irreversible. Frequent episodes of mild overheating can result in the same amount of component damage as a few episodes of severe overheating. Like slicing a loaf of bread – you can have many thin slices or a few really thick slices – but when you get to the end, you’re done.

A voltage regulator is a system designed to automatically maintain a constant voltage. A voltage regulator may use a simple feed-forward design or may include negative feedback. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.

Type D is almost exclusively used in India and Nepal. Type D mainly used in India 3 pins grounded 5 A 220 – 240 V socket compatible with plug type D (partial and unsafe compatibility with C, E & F)

commonly used in Europe, South America & Asia 2 pins not grounded 2.5 A, 10 A & 16 A almost always 220 – 240 V socket compatible with plug type C

A surge protector (or spike suppressor, surge suppressor, surge diverter, surge protection device (SPD) or transient voltage surge suppressor (TVSS) is an appliance or device intended to protect electrical devices from voltage spikes in alternating current (AC) circuits. A voltage spike is a transient event, typically lasting 1 to 30 microseconds, that may reach over 1,000 volts. Lightning that hits a power line can give a spike of over 100,000 volts and can burn through wiring insulation and cause fires, but even modest spikes can destroy a wide variety of electronic devices, computers, battery chargers, modems and TVs etc, that happen to be plugged in at the time. Typically the surge device will trigger at a set voltage, around 3 to 4 times the mains voltage, and divert the current to earth. Some devices may absorb the spike and release it as heat. They are generally rated according to the amount of energy in joules they can absorb.

TYPES A & B There are two types of domestic wall outlets in use in the US, Canada, Japan and Central America: the ungrounded type A (NEMA 1-15) and the grounded type B (NEMA 5-15). Type A mainly used in the USA, Canada, Mexico & Japan 2 pins not grounded 15 A almost always 100 – 127 V socket compatible with plug type A Type B mainly used in the USA, Canada & Mexico 3 pins grounded 15 A almost always 100 – 127 V socket compatible with plug types A & B

Mains electricity or utility power, power grid, domestic power, and wall power, or in some parts of Canada as hydro, is a general-purpose alternating-current (AC) electric power supply. It is the form of electrical power that is delivered to homes and businesses through the electric grid in many parts of the world. People use this electricity to power everyday items—such as domestic appliances, televisions and lamps—by plugging them into a wall outlet.