Table of Contents

Product Overview

HF-CH-225 Live Single-core Cable Identification Tester is mainly used for identification of energized single-core cables at 35kV, 110kV, 220kV and 500kV. For safety operation, most single-core cables adopt single-end armored grounding, making conventional cable identifiers unable to complete identification work.

Adopting satellite time synchronization technology, this tester detects power frequency current and phase of energized single-core cables and analyzes current trends.

Users can accurately identify the target cable among multiple single-core energized cables to prevent severe accidents caused by mis-cutting live cables. Cable identification requires operation at both cable ends, and accurate cable number verification is mandatory. Staff memory cannot replace professional testing instruments.
HF-CH-225 eliminates near-end calibration; identification can start directly from both ends without repeated site travel, delivering fast and accurate results and greatly improving efficiency.

Furthermore, by comparing current readings collected from two terminals, the instrument evaluates line conditions of the tested cable section. The current difference equals shunt loss current along the cable. If the loss current is high, leakage or electric theft may exist and requires troubleshooting.

The set consists of two receivers and two flexible current clamps. Lightweight and portable for easy field operation.

Receiver: Handheld unit equipped with a 3.5-inch color LCD, high-speed processor and GPS module. With refined algorithms, it continuously analyzes and displays cable current, phase and trend.
Measurable AC current range: AC 0.00A~2000A (50Hz/60Hz), phase range: 1°~360°.

Flexible Current Clamp: Rogowski coil design with dynamic tracking capability for instantaneous cable current and trend detection. Inner diameter: 300mm, easy to carry and operate.

Technical Specifications

Item	Parameter
Functions	Live single-core cable identification, AC current, phase, current trend test, cable loss current measurement
Power Supply	7.4V 3Ah rechargeable lithium battery; approx.10 continuous working hours after full charge
Applicable Cable Voltage Class	Mainly for 35kV, 110kV, 220kV, 500kV energized single-core cables; compatible with other single-core cables
Current Frequency	50Hz, 60Hz
Locking Current	Max. approx.230mA
Display Mode	3.5-inch true-color LCD, color icon indication
Current Clamp Direction	During identification, arrowheads of two flexible clamps point toward far end of cable
Receiver Dimension	207mm×101mm×45mm (L×W×H)
Flexible Current Clamp	Cable length: approx.1m; wire diameter: approx.7.5 mm
Maximum Identification Distance	Over 500km
Inner Diameter of Flexible Clamp	φ300mm
Clamp Lead Length	2m
Measurement Range	Current: 0.00 ~ 2000A AC (50Hz/60Hz) Phase: 1°~360° Frequency: 40Hz~70Hz
Accuracy	Current: ±2%±3dgt Phase: ±5° Frequency: ±2Hz
Test Rate	Approx.15 seconds per test
Cable Judgment Criterion	Target cable is confirmed when phase difference measured by two terminals <40°, current difference <10%, consistent trend and trend ratio difference <5dgt
Backlight Control	Adjust LCD brightness via up/down keys under function menu
Auto Power-off	Automatically shut down after about 1 hour of inactivity to save battery power
Low Battery Reminder	Low battery icon pops up to prompt charging
Charger	9V DC charger
Charging Port	USB charging interface
Operating Temperature	-10℃ ~ 40℃; below 80%RH
Storage Temperature & Humidity	-10℃~50℃; ≤95%RH, non-condensing
Weight	Current clamp: approx.2×170g Receiver: approx.2×474g (with battery)
Withstand Voltage	AC2000Vrms (between front and rear enclosure)
Safety Standards	IEC61010-1 CAT III 600V, IEC61010-031, IEC61326, Pollution Degree 2

FAQ for Live Cable Identification Tester

Q1: What type of cables is this tester mainly applicable to?

A1: It is designed for 35kV, 110kV, 220kV, 500kV energized single-core cables with single-end armored grounding.

Q2: Does identification require power cut of cables?

A2: No. It supports live-line identification without de-energizing cables.

Q3: Is near-end calibration necessary before testing?

A3: No. Operators can start testing directly at both cable ends without repeated round trips, greatly improving efficiency.

Q4: What technology does the tester adopt for long-distance identification?

A4: It uses satellite time synchronization technology to compare current and phase data measured from two terminals.

Q5: What is the maximum identifiable cable length?

A5: The identification distance can reach more than 500 km.

Q6: What parameters can the instrument measure besides cable identification?

A6: It can test AC current, phase, current trend and cable loss current to check cable leakage or electricity theft risks.

Q7: How does the system judge the target cable?

A7: It judges by comparing phase difference, current difference and current trend consistency of signals collected from two ends of cables.

Q8: What is the continuous working duration after full charging?

A8: Equipped with a 7.4V rechargeable lithium battery, it can work continuously for about 10 hours when fully charged.

Q9: What is the structure of the complete set?

A9: Standard set includes 2 handheld receivers and 2 flexible Rogowski current clamps.

Q10: What safety standards does the instrument comply with?

A10: It meets IEC61010-1 CAT III 600V, IEC61010-031, IEC61326, Pollution Degree 2.

Q11: What is the inner diameter of flexible current clamps?

A11: The inner diameter of the flexible coil is 300 mm, suitable for large-diameter power cables.

Q12: Can it prevent wrong cable cutting accidents?

A12: Yes. It accurately distinguishes the target cable among multiple parallel live cables to avoid serious safety incidents.

Reviews

There are no reviews yet.

Be the first to review “HF-CH-225 Live Cable Identification Tester”

HF-CH-225 Live Cable Identification Tester