Shielded Separable Connector

Shielded separable connector is a key electrical connection component for medium and high voltage power systems (the rated voltage is usually 12kV to 42.5kV), which is mainly used to realize fully insulated and fully shielded connection between cables and switch cabinets, transformers, cable tap boxes and other equipment. Its core features and applications are as follows:

1. Core features

‌full shielding and fully sealed structure‌: adopts a multi-layer overall design (equilibrium layer, insulating layer, external shielding layer) to ensure uniform distribution of the electric field, eliminate corona discharge, and provide reliable waterproof and dust-proof sealing performance. Some models can operate for a long time underwater or in extreme environments.

‌Safety and touchable‌: The outer surface of the insulator is designed to be touchable to ensure the safety of the operator and the surrounding environment.

Flexible connection method: supports plug-in (easy to quickly install and maintain) or fixing bolt connection, and is suitable for rated current 630A or 800A.

‌Integrated detection function‌: Some models are equipped with capacitance test points, which are used to detect the live state and phase sequence of the system.

2. Technical parameters and structure

Rated range:

Voltage: 12kV~42.5kV (50Hz three-phase system);

Cable cross-section: 25~500mm² (suitable for copper or aluminum core cables).

‌Key Components‌:

‌Stress Cone‌: Disperse the electric field stress at the cutoff of the cable shield to prevent local discharge;

‌Mechanical Take-off‌: Optimize conductor contact force, reduce resistance, and simplify installation (no crimping tools required);

‌Grounding Ring‌: Ensure that the shielding layer is grounded reliably.

III. Application scenarios

Equipment connection: widely used in cable interfaces for switch cabinets, transformers, cable tap boxes and other equipment;

‌Environmental adaptability‌: Universal indoor and outdoor, without minimum phase distance limitation, can be installed horizontally, vertically or at any angle;

‌Extended Function‌: It can be paired with a lightning arrester or rear connector to achieve overvoltage protection or multiple branch connections.

IV. Standards and Verification

Comply with China's power industry standard DL/T1263-2013, and ensure reliability through type tests (insulation, temperature rise, etc.) and factory tests (local discharge detection, etc.);

Some models meet international standards (such as CENELEC HD 629.1S1, EN50180/50181).

5. Materials and Process

The main body uses highly tear-resistant and electrical trace-resistant modified EPDM or silicone rubber to ensure long-term durability;

The overall molding process ensures compact structure and reduces the use of internal space of the equipment.