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Insulating boots, gloves, and pressure-resistant devices – the "last line of defense" protecting the lives of frontline

2026-03-09

In the power industry, insulating boots and gloves are the "last line of defense" protecting the lives of frontline workers. To ensure the reliable insulation performance of these safety tools, a high-voltage withstand device for insulating boots and gloves has become an indispensable specialized equipment. This article will provide a detailed introduction from three aspects: its components, core functions, and application scenarios.

Device Components

The device's structural design typically consists of two main parts: the operation control box and the test electrode carriage. The operation control box is the core of the device, integrating a voltage regulator, transformer, microcomputer measurement and control system, and operating interface, responsible for voltage regulation, signal processing, and test process control. The test carriage includes a movable bracket, a water tank, stainless steel electrode rods, and high-voltage conductive supports. During insulating boot testing, steel balls or water can be placed inside the boot, and the water tank outside the boot is energized to form a high-voltage circuit. During insulating glove testing, water is filled both inside and outside the glove, and the electrodes are suspended and inserted into the water. To ensure safety, modern high-end devices also employ infrared or wireless communication technology to completely isolate the operating platform from the high-voltage system and are equipped with independent leakage current meters and high-voltage disconnection mechanisms.

Core Functions

In terms of functionality, this device primarily performs power frequency withstand voltage tests and leakage current measurements. Its working principle is based on electromagnetic induction, where a low-voltage input power supply is stepped up to a test voltage of 0-30kV or even higher via a transformer and applied to the test object. The core function of the device is its ability to simultaneously test multiple test objects; common specifications include 6-station, 8-station, and even 16-station options, with each channel independently monitoring leakage current. When a test object breaks down or its leakage current exceeds the limit, the intelligent disconnect mechanism of that channel immediately disconnects it from the high-voltage system, protecting the equipment and ensuring that testing of other test objects can continue. Furthermore, fully automated program control (automatic voltage boosting, timing, and voltage reduction) and high-precision data storage functions replace traditional manual operation, greatly improving the accuracy and efficiency of the tests.

Application Scenarios

Insulated boot and glove withstand voltage devices are mainly used in all scenarios involving electrical work. The primary users are power supply companies at all levels, substations, and power maintenance centers, for conducting regular preventative tests on safety tools in accordance with the requirements of the "Preventive Testing Regulations for Electrical Safety Tools and Equipment." In addition, large factories and mines, electrified railway departments, and wind and solar power stations are also important users. These locations also have a large number of high-voltage electrical equipment that requires regular testing of insulation and protective equipment. Meanwhile, metrology and testing institutions and power equipment testing centers also use this device to issue authoritative test reports.

ZXYTM-558Y Insulating Boot and Glove Withstand Voltage Tester: Technical Analysis

The ZXYTM-558Y fully automatic insulating boot and glove withstand voltage tester is a professional testing device developed according to the "Preventive Testing Regulations for Electrical Safety Tools and Equipment." It is mainly used for power frequency withstand voltage testing of insulating boots and gloves.

Core Parameter Advantages:

The instrument has an input voltage of 220V, a rated output voltage of up to 50kV, an output capacity of 5kVA, a leakage current measurement range of up to 100mA, and a breaking threshold of not less than 12mA.
It supports simultaneous testing of 8 test samples, with each channel independently monitored. If a test sample breaks down, that channel is automatically disconnected without affecting other test samples.

Functional Innovation:

It adopts a high-low voltage separation structure and transmits the leakage current signal back to the control box through anti-interference wireless transmission technology, completely eliminating the threat of high voltage.
The insulating boot test uses a dry method, replacing traditional water injection with stainless steel balls, avoiding the drawback of difficulty in drying after testing.
A 7-inch TFT touchscreen displays 8 channels of leakage current in real time, with fully automatic programmable voltage boosting, timing, and voltage reduction, and results are automatically saved.

Application scenarios:

Widely used in power supply companies, substations, electrified railways, and factories and mines, strictly adhering to GB12011 and GB17622 standards, and can be extended to the testing of tools such as insulating rods and insulating clothing, making it a multi-purpose machine.

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Insulating boots, gloves, and pressure-resistant devices – the "last line of defense" protecting the lives of frontline

Device Components

Core Functions

Application Scenarios

ZXYTM-558Y Insulating Boot and Glove Withstand Voltage Tester: Technical Analysis

Core Parameter Advantages:

Functional Innovation:

Application scenarios:

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