Extension cords are used to bring power to electrical devices that need to be used in areas that are a bit far from the wall socket. But this should not be permanent. There are various kinds; Power strips, Surge protector and multi tap.
Most of the time extension cords are improperly used:
Since an extension cord is a length of cable with a plug on one end and three or more sockets on the other end, considering the fact that the longer the conductor the bigger the resistance heat energy can develope in the cord (cable) whenever current goes against that resistance. This gradually makes its insulation weak and therefore it should not be used for more than 90 days otherwise it will turn a threat to its user.
Due to many electrical needs and few power outlets people overload extension cords, since they have more than one socket. This can lead to fire outbreak as more current is drawn through the extension cord. The fuse may not blow immediately but the cord can get hot enough to ignite its insulation, the nearby cloths or carpet and fire starts. In most cases even the devices connected to it will get damaged if they are not protected.
Safety Practices
Power strip (extension cord) |
Most of the time extension cords are improperly used:
Since an extension cord is a length of cable with a plug on one end and three or more sockets on the other end, considering the fact that the longer the conductor the bigger the resistance heat energy can develope in the cord (cable) whenever current goes against that resistance. This gradually makes its insulation weak and therefore it should not be used for more than 90 days otherwise it will turn a threat to its user.
Due to many electrical needs and few power outlets people overload extension cords, since they have more than one socket. This can lead to fire outbreak as more current is drawn through the extension cord. The fuse may not blow immediately but the cord can get hot enough to ignite its insulation, the nearby cloths or carpet and fire starts. In most cases even the devices connected to it will get damaged if they are not protected.
Safety Practices
- Extension cords are not meant for permanent use. Look for a licensed electrician to install more wall socket outlets.
- Avoid overloading the extension cord. Whenever adding another electrical device on the cord, first check the current rating or power rating and calculate the total current drawn through the extension cord. Most extension cords have fuses with 13A current rating so if you have one with 13A, make sure you don't exceed this current.
- Worn out and damaged cords should no longer be used and be destroyed to prevent reuse.
- When buying an Extension Cord, verify that it is tested and labelled by a recognised testing laboratory.
- Extension cords should be visually inspected for damage before use on any work.
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