If you see a power strip with a joule rating on it, you’re actually looking at a surge protector. A regular power strip lets you plug multiple devices using only one electrical wall outlet. A surge protector strip like the one shown in the image above additionally protects you in the case where there is a surge of electricity.
A sudden surge during a storm or power outage can damage or destroy expensive electrical devices so a surge protector pretty cheap protection against this from happening.
Joule protection on a surge protector refers to the level of energy that the surge protector is capable of absorbing during a power surge. Joules are a unit of energy, and in this context, they represent the amount of energy that the surge protector can absorb before it fails to protect connected devices from voltage spikes.
What is a power surge?
A power surge is a brief and sudden spike in voltage that occurs in an electrical system, often caused by lightning strikes, power outages, or other electrical disturbances. These surges can damage or even destroy electronic devices that are connected to the power source.
When a power surge occurs, it can cause voltage spikes that exceed the normal level of electricity that flows through the electrical system. These spikes can damage or even destroy electronic devices that are connected to the power source. A surge protector with higher joule protection is able to absorb more energy and provide better protection against these voltage spikes.
It’s important to note that joule protection is not the only factor to consider when choosing a surge protector. Other factors such as clamping voltage, response time, and number of outlets should also be taken into account.
Additionally, it’s important to replace surge protectors periodically, as they can lose their effectiveness over time.
What is a power strip used for?
A power strip is an electrical device that is used to extend the reach of electrical outlets. It typically consists of a plastic or metal strip that contains several electrical sockets, allowing multiple electronic devices to be plugged into a single wall outlet.
Power strips are useful in situations where there are not enough electrical outlets available or when you need to plug in multiple devices in the same location. They can be used in homes, offices, and other settings where multiple electrical devices need to be connected to power.
What is a surge protector?
A surge protector protects against a power spike that can damage or destroy an electrical device during a storm, power outage or other extraordinary event. The surge protector plugs into a wall and you then plug an electrical device(s) into the surge protector.
A basic power strip will not have surge protection and thus will contain no mention of joules. If you see a reference to joules on the packaging, you are undoubtedly looking at a power strip with surge protection built in.
Some power strips also come with additional features, such as the ability to switch off the power supply to individual outlets. These features can help protect your electronic devices from damage caused by power surges or allow you to conserve energy by turning off power to devices that are not in use.
How many joules does a power strip with surge protection need?
The number of joules required for a power strip with surge protection depends on the specific needs of the user and the electronic devices that will be connected to it. In general, it’s recommended to choose a surge protector with a rating of at least 1000 joules for basic protection of household electronics.
For more sensitive or expensive electronic devices, such as computers or home theater equipment, a surge protector with a higher joule rating may be recommended to provide additional protection against power surges.
Ultimately, the ideal number of joules will depend on the specific needs and requirements of the user.
If you’re looking for a whole house solution to protect all electrical devices used in your home, you can investigate the possibility of adding a whole house surge protector.