RoHS Requirements for Cable Materials
RoHS (Restriction of Hazardous Substances) limits the use of specific hazardous materials in electrical and electronic products.
For cable products, restricted substances may be present in:
Polymer insulation materials
Outer sheath compounds
Plastic additives
Metal coatings
Other non-metallic components
FRCABLE evaluates material composition to help ensure that solar cable products meet applicable environmental requirements.
RoHS Screening Method
The initial screening of cable materials is commonly performed using X-ray fluorescence (XRF) analysis.
During XRF testing, the sample surface is exposed to X-ray radiation. The interaction between the X-rays and elements within the material produces characteristic signals that can be analysed to identify the presence and concentration of specific elements.
XRF screening provides rapid material composition information without damaging the tested sample.
Cable Material Sampling
Depending on the cable construction, different components may be evaluated separately.
Typical test samples may include:
Outer Sheath Material
Verification of polymer compounds used for external protection.
Insulation Material
Assessment of insulation compounds used around the conductor.
Metallic Components
Analysis of conductor coatings or other metal-related components where applicable.
Testing different material sections helps provide a more complete understanding of cable composition.
Restricted Substances Evaluated
RoHS compliance verification commonly evaluates restricted substances including:
Lead (Pb)
Restricted due to its environmental and health impact.
Mercury (Hg)
Controlled because of its toxicity and environmental persistence.
Cadmium (Cd)
Subject to a stricter maximum concentration limit than most other restricted substances.
Hexavalent Chromium (Cr VI)
Restricted due to its hazardous properties.
Polybrominated Biphenyls (PBB)
A restricted flame-retardant substance group.
Polybrominated Diphenyl Ethers (PBDE)
Restricted brominated flame-retardant substances.
Phthalates
Including DEHP, BBP, DBP and DIBP, which are controlled under RoHS 3 requirements.
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