Power Testing

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Electric Power Tools and Equipment Testing

With the rapid development of industries such as power and construction, high-risk scenarios like aerial work and live-line operations are increasing. Consequently, the frequency and reliance on safety tools and equipment continue to grow. Concurrently, as society progresses economically and places greater emphasis on safety, preventive testing of electric power safety tools and equipment is receiving increasing attention from relevant authorities and enterprises.

The Wuzhong Electric Power Laboratory of Suzhou Company is equipped with 23 sets of professional testing equipment. Its business scope covers four major categories: electric power safety tools and equipment, live-line work tools and equipment, small construction machinery and tools, and insulating materials. This encompasses preventive testing in two main areas: electrical performance testing and mechanical performance testing, providing customers with comprehensive preventive testing services for tools and equipment.

Testing Products

Personal Protective Equipment (PPE):

Safety helmets, safety belts, connectors, safety ropes, energy absorbers, retractable fall arresters, self-locking devices, conductive shoes, etc.

Insulating Safety Tools and Equipment:

Insulating rods, insulating ropes, portable short-circuit grounding wires, capacitive voltage detectors, insulating covers, insulating partitions, etc.

Supplementary Insulating Safety Tools and Equipment:

Supplementary insulating gloves, supplementary insulating boots, supplementary insulating mats.

Climbing Tools and Equipment:

Pole climbing stirrups, climbing boards, various ladders, ladder stools.

Live-Line Work Tools and Equipment:

Insulating operating rods, insulating support/ pull/ lifting rods, insulating string carrier (tray), insulating rigid ladders, insulating rope tools, etc.

Lifting Tools and Equipment:

Manual chain (lever) hoists, hooks (rings), shackles, wire ropes (slings), fiber ropes, lifting slings.

Line Construction Machinery and Tools:

Various types of pullers/ tensioners, connectors, wire grip pullers/ cable grips.

Insulating Materials

Testing Items

Power Frequency Withstand Voltage Test

Starting Voltage Test

Surface Power Frequency Withstand Voltage Test

Power Frequency Withstand Voltage and Leakage Current Test

Cable Assembly DC Resistance Test

DC Resistance Test

Static Load Test

Strap Strength Test

Horizontal Strength Test

No-Load Test

Impact Absorption Performance Test

Puncture Resistance Performance Test

Overall Static Load Test

A-Frame Limit Device Strength Test

Edge Rope Static Load Test

Rung/Slit Static Load Test on Flexible Ladder Heads

Electric Strength

Breakdown Strength

Volume Resistivity

Surface Resistivity

Testing Standards

Electric Power Safety Tools and Equipment (Personal Protective Equipment, Insulating Safety Tools and Equipment, Supplementary Insulating Safety Tools and Equipment, Climbing Tools and Equipment, etc.)

Products covered: Safety helmets, safety belts, connectors, safety ropes, energy absorbers, retractable fall arresters, self-locking devices, conductive shoes, personal protective grounding wires, insulating rods, insulating ropes, portable short-circuit grounding wires, capacitive voltage detectors, insulating covers, insulating partitions, insulating clamps, supplementary insulating gloves, supplementary insulating boots, supplementary insulating mats, pole climbing stirrups, climbing boards, rigid ladders (bamboo, wooden, aluminum alloy, composite material ladders), ladder stools, flexible ladders

DL/T 1476-2023

Live-Line Work Tools and Equipment

Products covered: Insulating operating rods, insulating support/ pull/ lifting rods, insulating string carrier (tray), insulating rigid ladders, insulating rope tools, insulating flexible ladders, insulating hand tools, insulating pullers/tensioners, wire grip pullers/cable grips, hydraulic pullers/tensioners, insulating gloves, insulating sleeves, insulating clothing (capes), insulating shoes (boots), insulating safety helmets, insulating blankets, insulating mats, protective covers/guards, voltage detectors, grounding and grounding short-circuiting devices

DL/T 976-2017

Small Construction Machinery and Tools (Lifting Tools and Equipment, Line Construction Machinery and Tools, etc.)

Products covered: Manual chain (lever) hoists, hooks (rings), shackles, wire ropes (slings), fiber ropes, lifting slings, ratchet pullers/tensioners, double-hook pullers/tensioners, mesh grip connectors, swivel connectors, bending-resistant connectors, wire grip pullers/cable grips, string carrier (tray), insulating ropes (insulating rope tools), flexible ladders (insulating flexible ladders), composite material ladders (insulating ladders), bamboo/wooden ladders, aluminum alloy ladders, climbing stirrups, climbing boards (elevator platforms/pads), grounding wires, safety belts, safety helmets, safety nets, rail-mounted self-locking devices, retractable fall arresters, energy absorbers, safety ropes, connectors

DL/T 1741-2017

Insulating Materials

Vulcanized rubber: GB/T 1692-2008, GB/T 1695-2005

Antistatic coating for petroleum tanks: GB/T 16906-1997

Solid insulating materials: GB/T 31838.2-2019, GB/T 31838.3-2019, GB/T 1408.1-2016

Insulating varnish films: HG/T 3331-2012, HG/T 3330-2012

Service Advantages

In addition to preventive testing of tools and equipment, the company can conduct targeted electrical performance tests on tool/equipment raw materials, supporting enterprise research and development.

Capabilities cover common tools and equipment. Furthermore, the company is one of the few testing institutions in China with a test voltage capability of up to 500 kV, covering the vast majority of power transmission and distribution application areas.