In this article, we will explore the pros and cons of both types to determine their safety levels.
The Superiority of Metal Outlet Boxes:
1. Durability and Longevity:
Metal electrical outlet boxes have a proven track record of durability and longevity. They are resistant to impact, making them less prone to damage during installation or from accidental heavy objects. Furthermore, metal outlet boxes have a higher melting point than plastic alternatives, making them less likely to deform or melt in case of a fire.
2. Superior Grounding and Conductivity:
Metal outlet boxes provide superior grounding and conductivity compared to plastic ones. The metal enclosure acts as a conductor and helps dissipate electrical faults by providing a low-resistance path to ground. This can reduce the risk of electrical shock or fires caused by electrical faults.
3. Fire Safety:
In the event of a fire, metal electrical outlet boxes have the advantage of being non-combustible. This feature helps to prevent the spread of flames and reduces the risk of fire damage. Additionally, metal boxes have a higher fire rating compared to plastic ones and can provide better fire containment.
The Advantages of Plastic Outlet Boxes:
1. Affordability and Cost Efficiency:
Plastic electrical outlet boxes are considerably more affordable than their metal counterparts. They are manufactured using injection molding techniques, which reduces production costs. Additionally, the lightweight nature of plastic boxes makes them easier to transport, contributing to cost savings.
2. Resistance to Corrosion:
One of the primary benefits of plastic outlet boxes is their resistance to moisture and corrosive environments. Unlike metal boxes, which can rust and deteriorate over time, plastic boxes are not affected by moisture or chemical exposure. This makes them ideal for installation in damp areas such as bathrooms, laundries, or garages.
3. Ease of Installation:
Plastic outlet boxes are generally easier to work with, especially for DIY homeowners or those with limited electrical experience. They are lighter, easier to cut and adjust, and do not require grounding. In addition, plastic boxes are less likely to cause accidental electrical shocks as they do not conduct electricity.
When it comes to safety, both plastic and metal electrical outlet boxes have their strengths and weaknesses. While metal boxes offer superior durability, grounding, and fire resistance, plastic boxes are more affordable, resistant to corrosion, and easier to install. The choice between the two ultimately depends on several factors, such as the specific application, budget, and personal preference. It is crucial to consult with a licensed electrician to determine the most suitable option for your electrical system to ensure safety and compliance with local electrical codes.