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GRC Outdoor High-Voltage Cable Junction Box

1.Lightweight and High Strength
2.High Toughness and Impact Resistance
3.Moisture-Proof, Fire-Resistant, Insulating, and Soundproof
4.Easy Installation and Construction
5..Customizable according to customer requirements.

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Product Introduction

  • The GRC (Glass-Fiber Reinforced Composite) outdoor high-voltage cable junction box is made of advanced inorganic composite materials. Its main components include alkali-resistant glass fiber reinforcement, sulfoaluminate cement, and selected aggregates, processed using techniques such as spraying, mold casting, extrusion, or slurry casting. This material combines light weight, high strength, high toughness, and multifunctionality, making it an ideal insulating and protective material for modern power distribution and industrial construction equipment.
  • The GRC high-voltage cable junction box ensures safe and reliable operation while offering excellent structural strength, weather resistance, and ease of installation. It is especially suitable for outdoor power distribution, urban grids, industrial enterprises, and large industrial parks.

GRC-10

Application Scenarios

  • Urban power distribution networks and high-voltage line junctions
  • Power distribution systems in industrial enterprises and industrial parks
  • Commercial complexes, public facilities, and large building projects
  • Outdoor substations and smart distribution networks
  • High-strength, moisture-proof, and fire-resistant power facilities in special environments

GRC-11

Product Parameter

No. Item Unit Parameter
1 Rated Voltage kV 12 24
2 Rated Frequency Hz 50
3 Rated Current A 630
4 Rated Short-Time Duration s 3
5 Rated Short-Time Withstand Current (RMS) kA 20
6 Rated Peak Withstand Current kA 50
7 Rated Insulation Level 1 min Power-Frequency Withstand Voltage Phase-to-Phase / Phase-to-Ground kV 42 50
Across Disconnector / Across Isolating Switch ---
Lightning Impulse Withstand Voltage Phase-to-Phase / Phase-to-Ground kV 75 95
Across Disconnector / Across Isolating Switch --
Auxiliary and Control Circuits kV 2
8 Rated Gas Pressure Mpa 0.02 0.03
9 Annual Gas Leakage Rate ≤0.5% ≤0.1%
10 Enclosure Protection Level Outer Box IP33
Gas-Filled Compartment IP67

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