Advanced Electricity Lab | Revolutionize Your Energy Systems with Advanced Distribution Transformers | CIC

Advanced Electricity Lab is accredited by TAF (ILAC Member). | Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

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Advanced Electricity Lab | Optimize Your Power Solutions with High-Capacity Power Capacitors | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With over 50 years of expertise and technology collaboration with Germany's MWB, CIC is ISO certified and offers products recognized for reliability in various industrial applications.

Challenge Industrial Co., Ltd. (CIC) stands at the forefront of electrical innovation, specializing in the manufacturing of current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With a legacy built on over 50 years of engineering excellence and leveraging advanced German technology, CIC commits to delivering high-quality, ISO-certified electrical solutions. Their comprehensive product range, paired with an ISO-certified approach and a TAF-accredited laboratory, ensures reliability and performance for a diverse global market. CIC is your go-to source for electrical components that power progress and efficiency.

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Advanced Electricity Lab

Advanced Electricity Lab is accredited by TAF (ILAC Member).
Advanced Electricity Lab is accredited by TAF (ILAC Member).

The Advanced Electricity Lab (AEL) was established by Challenge Industrial Co., Ltd. (CIC) in 2003 in Taoyuan City, Taiwan, to perform reliable electrical testing in accordance with various international and national standards, including IEC, IEEE/ANSI, and Taiwan's CNS standards. It provides testing services for both CIC's own products and those of other manufacturers.

Since 2003, the laboratory has been accredited by the Taiwan Accreditation Foundation (TAF), a member of the International Laboratory Accreditation Cooperation (ILAC) and a signatory to the ILAC Mutual Recognition Arrangement (ILAC MRA). In 2010, CIC became the first laboratory in Taiwan accredited under the ILAC-MRA framework for the full range of instrument-transformer type tests. In 2026, AEL was additionally assessed by UL Solutions under its Witnessed Test Data Program (WTDP).

Laboratory Information
  • Laboratory Name: Advanced Electricity Lab
  • TAF Accreditation Number: 1181
  • Location: Taoyuan City, Taiwan
  • Accreditation Criteria: ISO / IEC 17025: 2017; CNS 17025: 2018
  • International Recognition: TAF is an ILAC-MRA signatory — accredited reports recognized internationally
Testing Services Available
AEL performs testing for CIC's own products and for other manufacturers, including:

  • TAF-accredited testing (Accreditation No. 1181) — full scope listed below:
    - Routine Tests and Type Tests for Current Transformers and Voltage Transformers
    - Routine Tests for Distribution Transformers (oil-immersed and dry-type)
    - Routine Tests for Surge Protection Devices (SPD)
    - Damp Heat Steady State and Change of Temperature Tests for Electrical & Electronic Products

    Standards may include IEEE / ANSI, IEC, and CNS.

  • UL witnessed testing under UL Solutions' Witnessed Test Data Program (WTDP) — scope listed below.
  • Other testing on request — testing outside the accredited scope can be arranged. Please contact us to discuss specific requirements.
Full List of Accredited Testing Capabilities (TAF / ILAC-MRA)

The following testing scope is accredited by TAF (Accreditation No. 1181).

Voltage transformers (VT) are also referred to as potential transformers (PT) or inductive voltage transformers.


Current Transformers (≤ 72 kV)

≤ 36 kV: primary ≤ 8000 A, 200 VA max., Accuracy Class ≧ 0.1, 5P20, C800
≤ 72 kV: primary ≤ 600 A, 100 VA max., Accuracy Class ≧ 0.2, 5P20

Voltage Transformers (≤ 72 kV)

≤ 36 kV: secondary ≤ 220 V, 500β€’600 VA max., Accuracy Class ≧ 0.1
≤ 72 kV: primary ≤ 72/√3 kV, secondary ≤ 120 V, 200 VA max., Accuracy Class ≧ 0.2

● Verification of terminal markings

● Induced overvoltage test (Inter-turn overvoltage test)

● Power-frequency voltage withstand tests

● Polarity test

● Test for accuracy

● Partial discharge measurement

● Exciting current test (36 kV max.)

β—Ž Temperature-rise test (36 kV max.)

β—Ž Impulse voltage test (36 kV max.)

β—Ž Secondary winding open-circuited test (36 kV max.)

β—Ž Short-time current test (40 kA, ≤ 36 kV)

● Verification of terminal markings

● Induced overvoltage test (Inter-turn overvoltage test)

● Power-frequency voltage withstand test

● Polarity test

● Test for accuracy

● Partial discharge measurement

β—Ž Temperature-rise test (36 kV max.)

β—Ž Impulse voltage test (36 kV max.)

β—Ž Short-circuit withstand capability test (36 kV max.)

Oil-Immersed Distribution Transformers 

1 φ, 60 Hz, ≤ 13.8 kV, ≤ 167 kVA · 3 φ, 60 Hz, ≤ 24 kV, ≤ 2500 kVA

Dry-Type & Cast Resin Dry-Type Distribution Transformers

1 φ, 60 Hz, ≤ 24 kV, ≤ 500 kVA · 3 φ, 60 Hz, ≤ 24 kV, ≤ 2500 kVA

● Measurement of winding resistance

● Measurement of voltage ratio and check of phase displacement

● Measurement of short-circuit impedance and load loss

● Measurement of no-load loss and current

● Separate source AC withstand voltage test

● Induced voltage withstand test

● Design and visual checks

● Measurement of insulation resistance

● Measurement of winding resistance

● Measurement of voltage ratio and check of phase displacement

● Measurement of short-circuit impedance and load loss

● Measurement of no-load loss and current

● Separate source AC withstand voltage test

● Induced voltage withstand test

● Design and visual checks

● Measurement of insulation resistance

Surge Protective Devices (SPD)

1 φ, 60 Hz, ≤ 550 Vac, Class II and III SPDs

Electrical & Electronic Products

● Residual voltage with current impulses (40 kA max., 8 × 20 μs)

● Front-of-wave sparkover voltage (10 kV max., 1.2 × 50 μs)

● Limiting voltage with the combination wave (15 kV max., 1.2 × 50 μs)

β—Ž Change of temperature (−40 °C to +110 °C, rate max. 1 °C/min)

β—Ž Damp heat, steady state (20 °C to 85 °C, 40 %RH to 95 %RH)

Note: β— Routine Test  β—Ž Type Test
Updated: August 2026

UL Witnessed Test Data Program (WTDP)

In 2026, AEL passed UL Solutions' assessment under the Witnessed Test Data Program (WTDP). UL has recognized AEL as qualified to generate witnessed test data — for the products and tests listed below — that can support UL certification, with testing witnessed at AEL rather than requiring samples to be sent to a separate UL-recognized laboratory.

UL-Witnessed Testing Scope (WTDP)

Product Category

Test Standards

UL-Witnessed Tests

Instrument Transformers

(≤ 600 V AC · CT ≤ 8000 A · VT ≤ 25 A)

IEEE C57.13

IEEE C57.13.2

CSA C61869-1 / -2 / -3

Temperature rise · Applied voltage · Induced voltage · Voltage withstand  · Powerfrequency voltage withstand (primary and secondary terminals)

Dry-Type General Purpose & Power Transformers

(≤ 600 V AC)

UL 1561

CSA C22.2 No. 47

Weight measurement verification · Impedance · Temperature · Dielectric voltage

withstand (applied and induced potential) · Overload · Lifting and mounting means

Scope limits for instrument transformers reflect the calibrated range of the associated measuring instruments, not the capability of the laboratory; testing above 600 V AC or using DC current is subject to review with UL in a subsequent WTDP project. UL 1561 applies to transformers with a nominal primary or secondary rating of 600 V or less; equipment above that rating falls under a separate standard.

Updated: August 2026


Qualification and Oversight
  • WTDP is part of UL Solutions' Data Acceptance Program (DAP), under which UL accepts test data generated outside its own laboratories in support of UL certification.
  • To qualify, a laborator y must be assessed by UL and found to have facilities, equipment and personnel equivalent to those UL would use for the same testing.
  • Each test is then performed under the supervision of UL personnel, and the data is reviewed and audited by UL before it supports a certification.

Please note: the Witnessed Test Data Program recognizes the testing laborator y. It is not a certification of CIC products.


Contact Information
Laboratory Name: Advanced Electricity Lab
Contact Person: Crystal Yang
Email: global@cic-ltd.com.tw
Tel: +886-2-2788-3368 #2318

*Download Advanced Electricity Lab (AEL) Info Sheet.