English Product Name

Overview

The OKE Waterproofness Test Chamber for Cables and Wires is an IP-rated environmental simulation system engineered to evaluate the ingress protection performance of electrical components, cable assemblies, and low-voltage enclosures under controlled water exposure conditions. Based on the principles of calibrated spray dynamics and reproducible mechanical motion, the chamber replicates standardized wetting scenarios—including dripping, light rain, splashing, and oscillating jet exposure—as defined in IEC 60529-derived national standards (GB/T 4208–2008). Its design adheres to the physical constraints of laminar-to-turbulent transition regimes in nozzle-based water delivery, ensuring consistent droplet size distribution and impact velocity profiles across test cycles. The chamber is not intended for immersion or high-pressure washdown testing; rather, it serves as a deterministic tool for verifying enclosure integrity, gasket resilience, and connector sealing under non-submerged, dynamic wet conditions typical of outdoor installation environments.

Key Features

• Robust structural frame fabricated from welded channel steel, fully clad with brushed stainless-steel panels (AISI 304) for corrosion resistance and long-term dimensional stability.
• Motor-driven, frequency-controlled turntable with programmable rotational speed (standard: 1 rpm; optional continuously variable speed range).
• Oscillating spray arm assembly with precision-machined brass nozzles (0.4 mm diameter, 50 mm center-to-center spacing), mounted on a rigid support ring (400 mm or 500 mm radius options).
• Dual-mode oscillation control: selectable angular limits (±45°, ±60°, ±90°, ±180°) with repeatable positioning accuracy < ±0.5°.
• Integrated water management system comprising a 120 L stainless-steel reservoir, centrifugal booster pump, multi-stage particulate filter (5 µm nominal retention), and calibrated rotameter for real-time flow rate monitoring (range: 0–20 L/min).
• Full-view tempered safety glass door with silicone-sealed perimeter gasket and integrated anti-fog heating element for unobstructed observation during active testing.
• Comprehensive safety architecture including earth-leakage circuit breaker (30 mA), thermal overload protection for motor and pump, and automatic shutdown on overpressure or dry-run detection.

Sample Compatibility & Compliance

The chamber accommodates cylindrical and rectangular specimens up to 80 cm in maximum diagonal dimension. Cable reels, junction boxes, sensor housings, and modular terminal blocks are routinely tested using custom mounting fixtures compatible with the rotating platform’s T-slot configuration. All operational parameters align with the test severity levels specified in GB/T 10485–2007 (“Environmental Testing — Test Methods for Protection Against Water Ingress”) and GB/T 4208–2008 (“Degrees of Protection Provided by Enclosures — IP Code”). While not certified to IEC 60529 directly, its mechanical and hydraulic performance maps equivalently to IPX1 through IPX6 test configurations when operated per standard-defined durations, orientations, and flow rates. Documentation packages include calibration certificates for flow meter and angular encoder, traceable to national metrology institutes.

Software & Data Management

The integrated programmable logic controller (PLC) features a 7-inch TFT touchscreen HMI with English-language interface. Test programs—defined by duration, rotation speed, oscillation angle, dwell time per position, and total cycle count—are stored in non-volatile memory. All runtime parameters (flow rate, elapsed time, motor current, temperature) are logged at 1-second intervals and exportable via USB to CSV format. Audit trails comply with GLP documentation requirements, recording operator ID, timestamp, parameter modifications, and system fault events. Optional Ethernet connectivity enables remote monitoring and integration into centralized lab information management systems (LIMS) supporting IEEE 1394 or Modbus TCP protocols.

Applications

• Verification of IPX3/IPX4 ratings for outdoor-rated power cables and fiber-optic trunk lines.
• Validation of sealing integrity in automotive harness connectors exposed to road-spray conditions.
• Accelerated aging assessment of polymer jacketing materials under cyclic wet-dry stress.
• Pre-compliance screening for industrial control cabinets prior to third-party IP certification.
• Research into hydrophobic coating durability on insulated conductor surfaces.

FAQ

Does this chamber meet IEC 60529 requirements?

It implements test methodologies equivalent to IEC 60529 IPX1–IPX6, but final certification requires validation by an accredited body against the full standard.

Can the spray intensity be adjusted independently of oscillation angle?

Yes—water pressure and flow rate are regulated separately via the rotameter and booster pump control loop, enabling independent optimization of impact energy and coverage pattern.

Is distilled water required for operation?

Deionized or filtered tap water (≤10 ppm total dissolved solids) is sufficient; the built-in 5 µm filter prevents nozzle clogging under normal use.

What maintenance intervals are recommended?

Nozzle inspection every 200 operational hours; filter cartridge replacement every 500 hours; annual calibration of flow meter and angular encoder.

Is the turntable load capacity specified?

Maximum uniform load: 50 kg at center of rotation; eccentric loading must not exceed 15 kg·cm moment to maintain rotational stability and bearing life.