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as a quick solution one can check the quality marking and see whether it meets the standards of specific country
1. Cables should be Low Smoke Zero Halogen (LSZH) and plenum type.
2. All equipment should be fire retardant where possible.
3. Prefer copper cables instead of aluminum cables. with best conductivity.
4. If there is a government ratings of (Stars), prefer the maximum star equipment to use.
5. All sockets should be 3 pin type, not the old traditional two pin sockets.
6. All sockets must have grounding, normally you will rarely find grounding circuits in residential buildings.
