What is a Continuous Ground Monitoring CGM Extension Cord and Why Do You Need One?

Buying a proper extension cord is a proactive way to minimize electrical malfunctions. However, the word “proper” can be subjective in this context as it depends mainly on a power cord’s intended usage.

For instance, cables intended for outdoor usage are typically designed with certain weather-proof features to prolong their durability. Similarly, cords used with heavy-duty appliances must have the correct gauge and ampacity to power that equipment.

Safety is also paramount when choosing an extension cord or any electrical component. One way to achieve maximum safety with power cords is to pick a continuous ground monitoring extension cord.

But just what is a continuous ground monitoring power cord, and why do you need it?

That question shall be the focus of this post. Read on to uncover what these extension cables are all about.

Introducing Continuous Ground Monitoring Extension Cords

A continuous ground monitoring extension cord, commonly shortened as a CGM extension cord, is a power cord designed to let you detect whether there’s ground continuity.

Ground continuity refers to having all conductive parts of an electrical component in direct contact with a user’s skin safely routed to the power line ground. The term may also be used in other contexts to denote the flow of electricity between a power outlet and any exposed conductor on the ground. The conductor could be metallic surfaces, stagnant water, or a human body.

A CGM power cord is a resourceful investment as far as human safety is concerned. The cable contains mechanisms for detecting faults in grounding, thereby averting electrical malfunctions and electrocution.

It’s important to note that many electrical accidents are often due to improper earthing, which results in inadvertent current leakages. You can only imagine what would happen if high voltage were to run through your body while standing on still water.

But even if these hazards do not occur, buying an extension cord with ground monitoring is a long-term investment. That’s because the CGM feature lets you detect and forestall any potential damage to your electrical system. This can help you extend the life of your extension cords and the equipment they’re plugged into.

How Do CGM Extension Cords Work?

Continuous ground monitoring extension cords are typically designed with a green ground check light.

The green light lets you know the cable’s electrical current is safely grounded. These connectors also have an amber power check light on their plugs, which indicates power delivery through the cord.

Why Do You Need a Continuous Ground Monitoring Extension Cord?

Human safety is the biggest reason to invest in a CGM extension cord ground. The consequences of having high-voltage current flow through your body are too grim to ponder. That’s not to mention the extent of damage your electrical fixtures could suffer due to earthing-related malfunctions.

As already indicated, a continuous ground monitoring extension cord is also a worthy investment in extending the longevity of your electrical systems. The extra safety feature improves the durability of the CGM power cord and the equipment they’re powering.

That means CGM power cords may have a high price tag. But they’re worth every penny, considering the costly repairs or overhauls you may need to undertake occasionally if working with regular extension cords.

How to Shop for CGM Extension Cords

Most CGM extension cords are designed for outdoor usage. As with any outdoor extension cord, these components must contain features that cushion them from the elements. Those include aspects like water resistance and thermal insulation. All other general considerations while shopping for extension cords should apply to CGM power cords.

Besides the intended usage environment, most CGM extension cords are designed to power heavy-duty equipment like those used in construction and mining sites. Therefore, they need to have the right amperage.

For instance, a 20-amp extension cord can only support up to 20 amperes. While you can upgrade to a 30-amp extension cord, it’s unwise to use a 20-amp power cord with a machine designed to use 30 amp cords as the system could blow up.

You’ll have better luck working with cords intended for higher-amperage tools, such as a 220 extension cord.

The next aspect to consider is the gauge. The thicker the gauge (or, the lower the numerical value), the more effective the cord’s current-handling abilities. This means a 12 gauge extension cord is less efficient than any heavy duty extension cord, such as a 12 gauge extension cord.

You’d also want to consider a bulk extension cord when shopping for CGM cords. A bulk extension cord wire is a cost-effective purchase in the long run, as you won’t have to worry about buying additional wire lengths.

Last, but not least, invest in CGM cords by renowned brands like Pro Glo. Pro Glo extension cords are durable and come with advanced safety features.

Summary

Continuous ground monitoring extension cords may be more expensive than standard power cords. But they’re far more effective at averting electrical accidents caused by faulty earthing.

Remember to conduct your due diligence while looking for a CGM extension cord. That mainly entails buying these components from reputable dealers and ensuring the cord possesses all the features required for its intended usage.