SPT-2 wire is a common type of electrical wire, often used as lamp cord or fixture wire, primarily distinguished by its 50% thicker insulation compared to SPT-1 wire.
This thicker insulation makes SPT-2 the wire of choice for anything that is reaching close to 7-amps, providing enhanced safety and durability for such applications.
Key Characteristics of SPT-2 Wire
Based on common usage and the provided reference:
- Insulation: Features insulation that is 50% thicker than SPT-1 wire.
- Ideal Use Case: Recommended for electrical loads approaching 7 amps.
- Amperage Capacity: Has the same maximum amperage rating as SPT-1 wire.
- Safe Handling: Can safely handle up to 10 amps when used for distances of 50 feet or under.
SPT-1 vs. SPT-2: Understanding the Difference
While both SPT-1 and SPT-2 are flexible parallel cords often used for light-duty applications, the primary distinction lies in the thickness of their insulation.
| Feature | SPT-1 Wire | SPT-2 Wire |
|---|---|---|
| Insulation | Standard | 50% Thicker |
| Preferred Load | Lower amperage | Closer to 7 amps |
| Max Amperage | Same | Same as SPT-1 |
| Safe Amperage (<50ft) | Up to 10 amps | Up to 10 amps |
Despite the insulation difference, both SPT-1 and SPT-2 have the same maximum amperage. However, the thicker insulation of SPT-2 provides a more robust and safer option for applications where the current draw is closer to 7 amps.
Applications
SPT-2 wire is commonly found in:
- Table and floor lamps
- Small appliances
- Holiday lighting
It's essential to always select the appropriate wire gauge and type based on the specific power requirements and local electrical codes for your project.
