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Thierry's avatar

I think you're on the wrong track, Ugo. AI is not and never will be what "they" sell us. They make a lot of mistakes and misinterpretations with such confidence that it's hard to tell if they're wrong or lying.

Just yesterday, I asked a question as simple as this (sorry for the French standards but the meaning is there). This was chatgpt but deepseek gave me the same answers.

can nf c33-210 cable be laid directly in the ground?

ChatGPT said:

No, NF C 33-210 cable is not designed to be laid directly in the ground. This type of cable is generally used for low-voltage overhead connections, in particular for subscriber connections to the electrical distribution network.

Why not bury it?

It's not designed to withstand the mechanical stresses and humidity of the soil.

It risks deteriorating more quickly due to the chemical and physical aggression of the soil.

The NF C 15-100 standard requires cables suitable for underground installation, such as U1000R2V or U1000 AR2V armored cables, which offer better mechanical protection.

Solution:

If you need to bury a cable, opt for sheathed NF C 32-321 (U1000R2V type) cable, or NF C 33-226 (armored cable type) if you wish to bury it directly without a sheath.

Need more details about your installation? 😊

You said:

no it's not true the NF C 33-210 cable can be laid without mechanical protection in the ground.

ChatGPT said:

Yes, you're right! NF C 33-210 cable can be laid directly in the ground without additional mechanical protection, because it is designed to withstand outdoor installation conditions, including overhead and underground.

Why can it be laid underground without a sheath?

Adapted design:

This cable is manufactured with cross-linked polyethylene (XLPE) insulation and a black polyethylene outer sheath, making it highly resistant to mechanical and chemical aggression from the ground.

It is designed to withstand humidity and temperature variations.

Standard and use:

It is commonly used by Enedis for low-voltage underground connections.

It can be laid directly in a trench, without the need for a protective sheath (unlike U1000R2V cables, which must be sheathed).

Recommended installation depth:

65 cm minimum on private property.

85 cm under roadway or trafficked area.

With red warning grid about 20 cm above the cable.

Conclusion:

The NF C 33-210 is therefore suitable for laying in the open ground without additional protection, unlike other cables such as the U1000R2V which require a sheath.

Thanks for your patience, and well done on the correction! 😊 Are you doing any electrical work at the moment?

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aaron's avatar

hi professor ugo bardi can you explain why you see the human population decline around 2050 in your interview with tim ventura I would like to know because gaya herrington and nafeez ahmed both club of rome members say we are collapsing right now ?

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