Aerial cables, outdoor communication lines, and PV cables sit under real sunlight for ten years or more, and that constant UV exposure
slowly turns a tough black sheath into a brittle shell that cracks and lets water in. Waiting a decade to see if a new cable sheath will survive outdoor use is not realistic for any manufacturer, so the industry uses accelerated xenon testing to compress years of sunlight and rain into a few weeks in the lab.
An experienced Indian customer with over 20 years of experience in this Industry shared: "We found your instrument quality wise as good as us and prices were competitive." He also expressed confidence in marketing LIB products in India.
This article explains what EN 50289-4-17 actually requires from a xenon test, how the LIB Industry Cable Xenon Chamber keeps light output stable enough to meet this standard, and how this equipment compares with a cable ozone chamber, plus the questions buyers most often ask about service and shipping.
Cable Xenon Chamber under EN 50289-4-17
Test Method Required by EN 50289-4-17
EN 50289-4-17 is used to check the UV resistance of the sheath on electrical and optical fibre cables. The standard calls for a xenon arc lamp fitted with borosilicate filters, running at a typical irradiance of 43 W/m² ±15% measured across the 300 to 400 nm band. If the equipment has irradiance control, this value can be held at 43.0 ±0.2 W/m² at 340 nm. Six cable samples hang vertically on a rotating drum that turns at 1 ±0.1 r/min, so every sample gets the same light exposure. Each cycle runs 120 minutes: 102 minutes of dry UV exposure at a black-panel temperature of 60 ±3°C with 50 ±5% RH, followed by 18 minutes of simulated rain at 50 ±5°C with no light. A full test runs 720 hours, or 360 cycles, unless the specific cable product standard asks for a different duration. Coloured cable compounds are also tested at the same 60 ±3°C black-panel temperature.
| Parameter | Requirement |
|---|---|
| Light source | Xenon arc lamp with borosilicate filters |
| Irradiance | 43 W/m² ±15% (300–400 nm), controllable to 43.0 ±0.2 W/m² at 340 nm |
| Sample count | 6 specimens, vertical, rotating drum at 1 ±0.1 r/min |
| Dry UV phase | 102 min at black-panel temperature 60 ±3°C, RH 50 ±5% |
| Rain phase | 18 min at 50 ±5°C, no radiation |
| Cycle length | 120 min |
| Total duration | 720 h (360 cycles), unless the product standard states otherwise |
How LIB Industry Keeps Light Output Stable
Holding irradiance steady for 720 straight hours is the hardest part of this test, because a xenon lamp naturally loses output as it ages. The
LIB Industry Cable Xenon Chamber uses a 4500 W water-cooled xenon lamp with interchangeable daylight, window-glass, and UV-extended filters, giving even coverage across the 280 to 800 nm spectrum. A built-in irradiance sensor feeds data back to a PID touchscreen controller every few seconds, and the controller automatically adjusts lamp power to keep the reading inside tolerance instead of letting it drift as the lamp wears. Black-panel temperature is controlled the same way, staying steady between 35°C and 85°C with a tolerance of ±2°C, so the dry UV phase and the rain phase both run at the exact numbers the standard calls for. The controller also logs irradiance, temperature, and humidity data automatically and can be checked remotely through Ethernet or Wi-Fi, so an engineer does not need to watch the equipment around the clock during a 30-day test.
Other Standards This Equipment Can Run
The same equipment is not limited to EN 50289-4-17. It also covers IEC 62930 for 1.5 kV DC photovoltaic cables, which asks for 60 W/m² ±15% irradiance and a pass mark of at least 70% retained tensile strength and elongation after the test. It runs ASTM G155 for general insulation weathering, using 0.35 W/m²·nm at 340 nm and a 63°C black-panel temperature. It also supports EN 50483-6 Method 2, which uses 1.120 kW/m² irradiance on a 24-hour cycle of 20 hours light and 4 hours darkness. One piece of equipment covering four standards means a cable lab does not need to buy separate machines for each customer requirement.
Vietnamese Customer Praises LIB Industry Cable Xenon Chamber for Stable Light Output
A cable manufacturer in Vietnam recently used the LIB Industry Cable Xenon Chamber to test outdoor power cable sheaths for tensile
strength retention and colour stability. After running several full cycles, their quality team reported that the irradiance stayed within tolerance from the first hour to the last, giving them repeatable results they could trust for their CE, IEC, and CSA submissions.
Beyond raw performance, the customer pointed to a few things that made the decision easy. The equipment is built with safety interlocks for over-temperature, low water, and door-open conditions, so operators are protected during long unattended runs. The price to performance ratio worked well for their budget, since one machine covers several standards. Every test also came back accurate and repeatable, cycle after cycle, and the equipment could be customized at no extra cost to fit their specific cable sample sizes. A 3-year warranty backed by lifetime technical service gave the team confidence that support would still be there years down the road, and on-site training meant their own staff could run the equipment without waiting on remote help.
LIB Industry has already built a low-temperature Cable Xenon Chamber down to -40°C for Électricité de France (EDF) in France, so this kind of demanding, cold-climate cable testing is not new territory. That track record gave the Vietnamese customer extra confidence in the quality behind their own order.
Popular Climate Test Chambers for Cables
Accurate Sunlight Simulation, Reliable Weathering Results, EN 50289-4-17, IEC 62930, ASTM G155, EN 50483-6
Reproduce Real Climate Conditions, IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-3, IEC 60068-2-30
Cable Xenon Chamber vs Cable Ozone Chamber: How to Choose
Both types of equipment test cable sheaths and insulation, but they target different failure modes and follow different standards.
| Feature |
|
|
|---|---|---|
 |
 |
|
| What it simulates | Sunlight, UV, and rain cycles | Atmospheric ozone attacking stretched or bent cable |
| Main standards | EN 50289-4-17, IEC 62930, ASTM G155, EN 50483-6 | IEC 60811-403, ISO 1431 |
| Failure it detects | Colour fading, cracking, loss of tensile strength from UV | Surface cracking under strain in an ozone-rich atmosphere |
| Sample condition | Cable hung freely, rotating under light | Cable bent or stretched (20–80% elongation) |
| Typical use case | Outdoor, aerial, and PV cables exposed to sunlight | Cables under mechanical tension near ozone sources, such as high-voltage equipment |
If the cable will spend years outdoors exposed to direct sun and rain, xenon testing is the right starting point. If the cable is bent, coiled, or stretched during service and may sit near equipment that generates ozone, an ozone resistance test is more relevant. Many cable manufacturers run both tests on the same product line, since sunlight and ozone exposure often happen together in real outdoor installations.
FAQs on the Cable Xenon Chamber
Q1: Does LIB Industry offer training after the equipment is installed?
Yes. LIB Industry provides on-site operator training as part of the standard service package, along with remote assistance whenever questions come up later.
Q2: What warranty comes with the equipment?
Every unit comes with a 3-year warranty and lifetime technical service, so spare parts and troubleshooting support remain available long after the warranty period ends.
Q3: Can the equipment be customized for our cable sizes?
Yes. LIB Industry offers free customization of the sample rack, chamber size, and low-temperature range (down to -40°C) to match specific cable diameters and product standards.
Q4: How is the equipment shipped and installed?
The equipment is packed and shipped by sea or air depending on the destination and project timeline, and LIB Industry's team supports installation and commissioning on site once it arrives.
Q5: Which certifications does the equipment meet?
The equipment is designed to meet CE, IEC, and CSA safety and performance requirements, so results are accepted by testing labs and certification bodies worldwide.
Q6: How long does a typical test run?
A full EN 50289-4-17 test runs 720 hours (360 cycles), though the exact duration depends on the specific cable product standard being referenced.
Contact LIB Industry for Your Cable Xenon Testing Needs
If you need reliable equipment for cable UV resistance and accelerated weathering tests, whether you need a Cable Xenon Chamber or Ozone Cable Chamber for EN 50289-4-17, IEC 62930, ASTM G155, or EN 50483-6 testing, LIB Industry can provide a suitable solution.
Contact LIB Industry today to discuss your cable testing standards, sample sizes, customization, installation, and shipping requirements. With a 3-year warranty, lifetime technical support, operator training, and global spare-parts service, LIB helps cable manufacturers achieve accurate and repeatable weathering test results.
