What causes the plugs to be burned out frequently? Is the current too high? How can I fix it?

August 23, 2021

What are the causes of plug burnout?

1, the socket after a long time of plugging and unplugging. The elasticity becomes weak and the contact pressure becomes small, resulting in overheating during operation.

2, often with a large load to pull the plug, resulting in the contact surface is arc burned. Contact resistance is large, also easy to overheat.

3, the plug or socket and the connection of the wire is not connected or the contact area is too small. Resulting in overheating during operation.

4, long-term overload use. In short, the plug is burned out, mainly due to the above three reasons.

Burnt out plugs

How to solve?

1, choose the regular manufacturer factory, good quality plugs and sockets.

2, if possible, try not to plug and unplug with the load. For example, the water heater, you can first turn off the water heater and then unplug.

3, the wiring of the socket and plug should be reliable and solid. The contact surface should be large enough.

4, if the socket has been used for a long time. Contact piece has deformed, you can artificially adjust it to keep enough pressure, overheating phenomenon can also be eliminated.

5, the connected meet can not exceed the rated load of the plug and socket. I think as long as these, plugs and sockets will be able to avoid overheating.

Burnt out plugs

I have dealt with this kind of failure, a friend's home just shortly after the renovation, floor air-conditioning socket burned into this! After replacing the large socket I asked: Is it true that every time you pull the plug directly to turn off the unit? Answer yes. This is the wrong operation!

The reason is simple, cut off the power supply, the greater the load generated arc, only the original equipment equipped with a switch is matched, when the equipment is turned off, only the voltage without current, this time to safely unplug!

The general socket with the switch is more likely to ignite the heat burned, can only be used for smaller power appliances (such as TV, fans, etc. available this switch), to high-powered such as electric heaters directly unplugged, of course, easy to damage, but this itself is a perishable thing, bad to replace a also easy, if the thousands of dollars of electrical switches bad you repair may be more expensive than this.

Why does this phenomenon occur?

1 socket quality problems, it is recommended to buy brand outlets.
2 socket rated current and the power of electrical appliances do not match.
3 appliance plugs for poor quality products, surface oxidation, poor contact in the jack.
4 concentration of electricity caused by the socket ultra-negative He.
5 with negative plug electric fox.
6 bad power cord wire diameter is too small, the back can not afford to heat.

Best Sockets Buying Guide

1. Yintar Power Strip with 6 Feet-6 AC Outlets and 3 USB Ports

Yintar Surge Protector Outlets: Power Strip with 6 Outlets and 3 USB Ports: 6 AC surge protector outlets (1680 Joules) including 1 wide pitch outlet, 3 USB ports (5V/3.0A, 115W), 6ft power cord (1250W/10A), surge protector indicator and 10A overload protection switch to protect against spikes and fluctuations. Wide range voltage design for 120v to 240v circuits.
Smart charging USB port: With built-in smart charging technology, this USB charger will automatically detect your device and provide the fastest charging speed up to 2.4A (max 5V/2.4 per port) with 3 USB ports (total 5V/3.0A/15W) for almost any USB device (smartphone, tablet, Amazon Kindle, Fire Stick, e-reader , Bluetooth headsets, portable speakers, etc.).

2.Amazon Basics 8-Outlet Power Strip Surge Protector, 4,500 Joule - 6-Foot Cord

8 Socket Surge Protector power strip: Electrical rating 15A/120V/1800W and 4500 Joule energy rating
Surge protection: protects equipment from potentially damaging power surges; fireproof MOV technology provides additional surge and spike protection

3.GE Pro 3-Outlet Power Strip with Surge Protection

Power More – The 3 outlets and the 8ft. power cord allow you to power your iPhone, Android, laptop, tablet, Nintendo Switch, Fitbit, smartwatch, Bluetooth speaker, TV, sound system or lamps in any space.
Flat Plug Extension Cord – Keep furniture and media close to the wall with the low-profile flat plug at the end of this power strip. The angled plug allows for this extension cord to be plugged into the receptacle without blocking the other outlet.

4.USB Wall Charger Surge Protector - Addtam 5 Outlet Extender with 4 USB Charging Ports ( 1 USB C)

9-in-1 function USB wall socket - perfect for duplex sockets, just plug and play. Please note: for some sockets, the black plastic pins can be cut off before use. You get 5 AC socket dispensers (3 sides) with a wide space in between; 4 USB charger ports; 1800 Joule surge protector to protect electronic devices by improving power quality.
USB-C Fast Smart Charging - 4 USB ports total 4.5 A, each USB A port has 2.4 A max output. USB C charging port has 3A MAX. built-in smart technology detects charging devices and automatically provides optimal charging speed, compatible with most USB devices. Note: The UCB-C port does not support other devices that require 14-22V charging voltage.

5.POWRUI Surge Protector, USB Wall Charger with 2 USB Charging Ports(Smart 2.4A Total)

Versatile design: 2 USB charging ports (total output DC 5V/2.4A) and 6 AC outlet plugs with built-in surge protector (1680 Joules). AC 100-240V normal operating voltage range
Dual intelligent USB charging ports: 5V 2.4A shared rating; high speed USB ports automatically detect charging devices and provide optimum charging speeds up to 2.4A each. in addition, your phone can be conveniently placed on the top phone stand while charging.
6 AC sockets: Extended 6 sockets to fit 6 standard plugs at the same time, with built-in 1680J surge protection kit. The "Protected" indicator LED lights up to show that your device is protected to the maximum extent from electrical spikes.