This underground warning tape is used in excavation and groundworks projects to visually mark buried telephone cables, helping prevent accidental service strikes and communication outages.
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Product type: Underground utility warning tape (non-adhesive trench marker)
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Application: Telephone and communications cable identification
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Material: Linear Low-Density Polyethylene (LLDPE)
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Colour / legend: Green with “CAUTION TELEPHONE CABLE BELOW” text
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Visibility: High-contrast print for rapid recognition during excavation
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Durability: Rot-resistant and acid-resistant for underground use
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Installation guidance: Laid approx. 300mm above the buried service
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Format: Long-run roll for continuous trench coverage
Underground Utility Warning Tape 365m x 100mm – CAUTION TELEPHONE CABLE BELOW – Green LLDPE
This underground warning tape is used in excavation and groundworks projects to visually mark buried telephone cables, helping prevent accidental service strikes and communication outages.
-
Product type: Underground utility warning tape (non-adhesive trench marker)
-
Application: Telephone and communications cable identification
-
Material: Linear Low-Density Polyethylene (LLDPE)
-
Colour / legend: Green with “CAUTION TELEPHONE CABLE BELOW” text
-
Visibility: High-contrast print for rapid recognition during excavation
-
Durability: Rot-resistant and acid-resistant for underground use
-
Installation guidance: Laid approx. 300mm above the buried service
-
Format: Long-run roll for continuous trench coverage
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Underground Utility Warning Tape 365m x 100mm – CAUTION TELEPHONE CABLE BELOW – Green LLDPE
Overview
Key Features & Benefits
- High-visibility green tape with clear “CAUTION TELEPHONE CABLE BELOW” legend.
- Colour coded in accordance with NJUG guidelines for telecom services.
- Rot-resistant and acid-resistant LLDPE for long-term underground durability.
- Non-adhesive design intended for loose placement in trench backfill.
- Provides an early visual warning when installed approx. 300mm above the service line.
- Helps reduce costly communication outages and reinstatement works.
Installation & Applications
Who Is This For?
- Excavation and groundworks teams operating near telecom infrastructure.
- Utilities and telecommunications contractors.
- Civils and highways teams marking underground services.
- Site managers and procurement teams specifying trench safety controls.
Competitive Advantages
Why CMT Group?
- Next-day delivery on all in-stock underground warning tapes.
- VIP same-day delivery available in as little as two hours on selected lines.
- UK-wide logistics network using our own delivery fleet.
- Trade-focused supply with bulk and pallet quantity options.
- Online portal with live tracking and delivery transparency.
Frequently Asked Questions
What is underground utility warning tape used for?
It is used to visually mark the route of buried telephone cables so excavators receive a warning before reaching the service.
How deep should the tape be installed?
Best practice is to install it approximately 300mm above the buried cable so it is encountered first during excavation.
Is this tape adhesive?
No. It is a non-adhesive marker tape designed to be laid loosely in trench backfill.
Will it remain legible underground?
Yes. The rot-resistant and acid-resistant LLDPE construction helps maintain visibility long term.
Are other utility variants available?
Yes. This range typically includes versions for water, gas, fibre optic, electric, street lighting, sewer, and traffic signals.
Specifications Table
| Product Name | Underground Utility Warning Tape – Telephone Cable |
| Product Code | HZ-TELE |
| Roll Dimensions | 365m x 100mm |
| Material | Linear Low-Density Polyethylene (LLDPE) |
| Type | Non-adhesive trench marker tape |
| Colour / Legend | Green – “CAUTION TELEPHONE CABLE BELOW” (NJUG compliant) |
| Recommended Placement | Approx. 300mm above the buried service line |

