The LB4-60A is a high-precision, intelligent high-voltage bridge designed to pre-locate cable faults. Unlike conventional TDR-based systems, it shows fault distances directly, requiring no waveform interpretation. It’s ideal for high-resistive and complex fault scenarios such as subsea or long cables. A burning function of up to 60kV enables the transition of high-resistive faults to low-resistive ones for easier identification. Its smart analysis automatically detects fault types and guides users to appropriate testing methods.
Applications:
Pre-location of difficult cable faults
High-resistive fault burning and location
Cable sheath fault identification
Long-distance cable diagnostics
Use where TDR and ARM technologies are ineffective
Specifications:
Test Modes:
Intelligent diagnosis
Bridge mode
Cross-section mode
Burn-through mode
Voltage Output:
Burn-through mode: 0–60kV DC (negative polarity)
Bridge mode: 0–4kV DC (bipolar)
Current:
Max 400 mA (burn-through and bridge mode)
Burn-through power: 20–100%, adjustable
Burn-through time: 0–90 min, adjustable
Cable Area:
Cross section: 1–9999 mm², adjustable
Test Range:
0.001–50 km
Display:
320 × 240 LCD, visible in sunlight
Two-dimensional coordinate map
Digital display
Accuracy:
± (0.1%·L + 1) m (L = cable length)
Memory & Data:
Record up to 100 tests
32 GB storage via USB
Safety & Protection:
Ground resistance < 10Ω
Temperature detection
Double ground system
Auto protection loop
Power & Environmental:
Power: 100–240V AC, 50/60Hz
Max Power: 400W
Operating Temperature: -25°C ~ 50°C
Storage Temperature: -30°C ~ 60°C
Humidity: <95%, non-condensing
Protection Rating: IP43
Build & Weight:
Dimensions: 300 × 460 × 500 mm
Weight: 22.3 kg (without accessories)
About Manufacturer
Founded in 2008, Xianheng intl (Tanbos) is a leading developer and manufacturer of portable and rugged test equipment for electrical systems and substations in China. Their tools focus on safety, speed, and cost-efficiency. Tanbos is listed on the Shanghai Stock Exchange and has built lasting partnerships across America, Europe, Southeast Asia, Africa, and the Middle East.
