Integrated Stress Control Tube — GVOT
Heat Shrink GVOT Sleeve is manufactured from cross-linked polyolefin material with an integrated stress control system, used to protect cables in areas of extreme electrical stress.
Choose a size
Selection Chart
- D min.
- Minimum internal diameter as supplied
- d max.
- Maximum internal diameter after free recovery
- T
- Recovered wall thickness (±10 %)
| Gala size | D min.(mm) | d max.(mm) | T ±10%(mm) |
|---|---|---|---|
| GVOT 30/15 | 30 | 15 | 2.3 |
| GVOT 40/20 | 40 | 20 | 2.3 |
| GVOT 50/25 | 50 | 25 | 2.3 |
| GVOT 65/32 | 65 | 32 | 2.5 |
| GVOT 75/37 | 75 | 37 | 2.8 |
| GVOT 85/42 | 85 | 42 | 2.8 |
Source: GALA Heat Shrinkable Tubing GVOT catalogue sheet, Issue 2, February 2025.
Dimensions & Drawings
GVOT sleeves integrate a varistor stress-control system in cross-linked polyolefin, protecting cables from erosion caused by leakage current in areas of extreme electrical stress and giving a moisture-proof environmental seal. Normally used as an integral part of Gala cable terminations up to 36 kV.
Covered on this page
- Integrated Stress Control Tube - GVOT Tube
Features & Benefits
- Integrated new varistor stress control system
- Compact design with few components
- Simple to install, high reliability
- More economical than alternative stress-control methods
- Six sizes from GVOT 30/15 to GVOT 85/42
Applications
- Electrical stress control at cable terminations and joints
- MV cable insulation in high-stress zones
FAQs
Frequently Asked Questions
What is the Integrated Stress Control Tube used for?
It is used for:
- Electrical stress control at cable terminations and joints
- MV cable insulation in high-stress zones
How do I choose the right size?
Use the selection chart on this page: it lists every code with its dimensions, and the key above it says what each column means. If you are not sure which fits, send the dimensions you are working to with the form below.
Where can I download the datasheet?
From the "Download datasheet" button at the top of this page, or here:
Can I get a quote, a sample or a size that is not listed?
Send your cable details, quantity and application with the "Request a Quote or Sample" form at the foot of this page. For a size or variant that is not in the chart, describe what you need there, or use Technical support at the top of the page, and the technical team will confirm what can be supplied.

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