Why Are Some Electrical Cords Made Curly?
1. Introduction
In factories and homes, we need cables to provide power to different devices and to send signals. But why are some cables made in a spiral shape? What are the characteristics of curly cables?
2. What Is a Curly (Spiral) Electrical Cord?
People also call a spiral cable a spring cable. A type of equipment connection cable that works by stretching exists. It is usually wound with TPU cable. This cable is used to control movable equipment which can spring back in a short time.
- Machine engineering,
- Power tools,
- construction industry,
- Mobile equipment,
- Recreational equipment,
- Medical equipment,
- Measuring instruments,
- Roller shutters,
- Vehicle connection equipment.
Common names: Spiral cable / Coiled cord / Retractable cable / Curly cable
3.Why Are Cords Made Curly?
1) It can still maintain excellent flexibility in mobile use.
e g: EV Charging Cable.
EV charging cable itself is heavy and not convenient to move. If you encounter some places where you need to bend, it is difficult. Because the bend radius of this cable is large.
However, these problems can be avoided when the cable is made into a spiral shape. The coiled cable is easy to bend.
2) Saving space Avoiding the safety problems caused by too long straight lines
eg: Mobile Lighting Tower Cable
If a straight cable, a part of the cable will be dragged on the ground because of the repeated expansion of the light tower. In this case, if it is coiled on the wheels of the mobile tower, the result will be dangerous. So we will use the spiral cable to power the light tower, which will avoid this safety risk.
3)High durability The shape of the spiral cable avoids the cable from being broken by external stresses
eg: Trailer Cable
The connecting cables of trailer semi-trailers are usually spiral in shape. This is because in repeated turns of the trailer, if it is straight it will break due to constant bending. The expanding and contracting characteristics of the spiral will ensure the longevity of the cable.
4. Common Applications of Curly Electrical Cords
| Application Area | Example |
|---|---|
| Machine engineering | Mobile Lighting Tower Cables |
| Trailer and automotive | Trailer Cable |
| New Energy | EV Charging Cables |
| Industrial Automation | MPG spiral cable |
5. Conclusion
KMCABLE has been manufacturing spiral cables for over 15 years.
We provide excellent spiral cable solutions for a wide range of industries. Our cable custom options include conductor type, insulation material, jacket material, and shield type.
We also offer working length, spiral OD, cable OD, pigtail length, and direction. If you have any needs. Feel free to contact us.
