Whether it’s industry, construction, or housework, power tools can make the lives of workers and homeowners easier and get the job done. While this is true, and power tools are used every day worldwide, sometimes they don’t necessarily make the job easier if they’re not used correctly. This is why everyone should know the safety precautions that need to be used before and during these tools. It’s also never wrong to be refreshed about common-sense safety practices.
Safety should always be the foremost consideration when dealing with electricity.To help ensure safety, double-insulated tools are an essential piece of any electrician’s toolkit. These tools help protect against electric shock, which can be a major hazard not just for the electrician, but for anyone in the vicinity. In this blog post, we’ll delve deeper into what double insulation is and how it keeps you safe while you work.

What is double insulated

Double-insulated tools, which are constructed with non-metallic cases and are approved by the National Electrical Code, do not need to be grounded and are often used in areas with high humidity or wetness. Also,these double-insulated tools, such as coffee makers, blow dryers, drills, and other power tools, are commonly found in homes.
Here are some power tools that typically require double insulation:
1. Power drills: Power drill is one of the most common tools requiring double insulation. Electric drills usually need to be used in a humid environment, such as in the kitchen or bathroom.
2. Electric saws: Electric saws require double insulation to prevent electric shock, especially when wet hands are used.
3. Electric sanders: Electric sanders also require double insulation, as they usually operate at higher speeds.
4. Electric lawn mowers: Because of the need to touch plants and wetlands when using a lawn mower, electric lawn mowers also need double insulation to prevent electric shock.
In summary, any power tool that may come into contact with water or damp conditions needs double insulation to ensure user safety.

Why do we need double insulated？

First, the tool and cord are doubly insulated. The wires in the tool and cord are insulated. This provides an extra layer of protection against electrical shocks. Additionally, the manufacturer puts a second level of insulation inside the tool to prevent any exposed metal from coming in contact with a damaged “hot” wire. This combination of two levels of insulation ensures greater safety than single-insulated tools.
A double-insulated tool will be marked on its handle or a data label with the words “Double Insulated” or with a symbol:回

What else should we pay attention to when we have double insulation？

Under the National Electrical Code, double-insulated tools do not require grounding; however, this design method does not completely eliminate the risk of an electric shock hazard. These tools are often used in areas with high levels of moisture or wetness, which can conduct electricity if water comes into contact with the energized parts inside the tool’s housing. If this happens, water provides a pathway to the outside, bypassing the double insulation, and can result in a shock to the person holding the tool when they contact another conductive surface.

Power tool-friendly notes

1.If a power tool falls into the water, even if it is double insulated, put on insulation gloves immediately and make sure the power is turned off. Please do not touch it with your hands.
2.Do not hold or handle a tool by its electrical cord.
3.Do not forcefully pull the cord to disconnect it from the outlet.
4.Make sure cords are kept away from sources of heat, oil, and sharp edges.
5.When not in use, when servicing, and when changing accessories such as blades, bits, etc., make sure to disconnect tools.
6.Do not place your fingers on the switch button while operating a tool that is plugged in to avoid accidental starting.
7.When operating electric tools, it is important to wear protective gloves and appropriate safety footwear.
8.When not in use, store electric tools in a dry place.
9.Keep work areas well-lighted when operating electric tools.
10.Make sure that the cords from electric tools are not placed in a position where they could cause someone to trip.
11.Discontinue utilization of all portable electric tools that are damaged, and label them with “Do Not Use”.
12.Avoid accidental starting by ensuring the tool is turned off before you plug it in. Also, do not use a plugged-in tool with your finger touching the switch.
13.Do not surprise or touch anyone who is operating a tool. It is not funny and could result in an injury or accident.