Overview
When buying power cables for your next data center installation, you will have to make the decision on buying SVT cables vs SJT cables. (Most commonly found with C14 to C13 10A Cables). In this short article we'll go over the advantages and disadvantages of both cables to help you make the right buying decision.
SJT
SJT stands for Service Junior Thermoplastic, which, in all honesty, does not really mean anything to you. So, let's look at some of the information regarding SJT jacket used with 18/3 conductors.
| Outer Diameter | ~ 0.12 inches |
| Jacket Material | PVC |
| Insulation Material | PVC |
SJT Technical Information when used with 18/3 conductors
SVT
SVT stands for Service Vacuum Thermoplastic and is a lighter duty version of SJT cordage. Designed for light indoor used, it is thinner and slightly less durable that it's SJT counterpart. Let's look at some of the technical information regarding SVT cordage.
| Outer Diameter | ~ 0.5 inches |
| Jacket Material | PVC |
| Insulation Material | PVC |
SVT Technical Information when used with 18/3 conductors
SJT vs SVT Comparison in a High-Density Rack
Now that we know a little bit about the differences between SJT and SVT jackets, let's run some numbers in a high-density cabinet scenario.
| World Cord Sets, Inc Part # | Number of Cables in Rack | Length of Cable in Inches | Cable Outer Diameter | Total Volume of Cable in Rack |
| 1413-F-036 (3FT C14 to C13 Power SJT) | 48 | 36 | 0.12 | 207.36 in3 |
| 1413-F-072 (6FT C14 to C13 Power Cord SJT) | 48 | 72 | 0.12 | 414.36 in3 |
| Total Cable Volume | 622.08 in3 | |||
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