Cement Concrete Product Testing

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Cable Trench Testing

Precast cable trenches are core prefabricated auxiliary components in State Grid power engineering projects. They are manufactured in factories using standardized processes, with concrete as the main material and a steel reinforcement cage. They are assembled on-site. These trenches feature a stable, dense structure, and exhibit corrosion resistance, weather resistance, water impermeability/leakage prevention, compressive strength, and wear resistance. They meet the installation and protection requirements for power cables, effectively preventing problems such as external damage to cables and rainwater immersion. The products meet the standardized construction requirements of State Grid power engineering projects, offering high installation efficiency and convenient operation and maintenance. They are widely used in cable installation scenarios such as urban and rural power grids and municipal power supporting facilities, significantly improving construction efficiency and quality.

Testing Products

Precast Cable Trenches

Cable Troughs / Ducts

Testing Items

Appearance Quality

Dimensional Tolerances

Concrete Cover Thickness (Reinforcement cover)

Compressive Strength Test of Concrete Test Specimens from the Structural Entity

Testing Standards

General Concrete Structure Quality Acceptance (applicable to precast components): GB 50204-2015

Technical specification for inspection of concrete cover thickness (and reinforcement bar diameter/spacing): JGJ/T 152-2019

Service Advantages

There are currently no dedicated product standards for precast cable trenches or cable troughs. Our company can accurately assist enterprises in formulating suitable enterprise standards based on State Grid bidding requirements, filling the standardization gap in product application.

Our testing services can seamlessly connect with the entire State Grid bidding sampling inspection process, offering high response efficiency and timely report issuance. We fully support the smooth progress of project bidding and tendering stages.