Is it possible to lay corrugation on the street?
The worker led me a VVG 3x2.5 wire in a corrugated PVC pipe with a broach dia. 20mm (manufacturer t.plast) from the counter along the outer wall of a brick residential building with plastic clips, then metal. poles (a length of about 30m), then on plastic fasteners clips inside a wooden garden house. What norms are violated by them? Corrugated pipe seems to be designed for indoor installation. The manufacturer, for example, Promrukav writes on the label: “Operation: Indoors or outdoors (under a canopy), protect from sunlight”, T.plast (from the Internet): “.. the pipe is used for internal laying of power, low-voltage networks in buildings and facilities. ” Is T.plast afraid of ultraviolet? Can it be laid on street poles? Explain and, possibly, give a link where the scope of its application is described in detail.
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Hello! Yes, most corrugations used by hired workers are afraid of ultraviolet and frost. They either crack or crumble when you start to touch it. To do this, use a polyethylene corrugation - it better tolerates UV radiation. You can also use a metal corrugation (metal hose). More about temperatures and the effect of UV is described in this article. https://our.electricianexp.com/en/vidy-i-razmery-gofry-dlya-kabelya.html
An electrician made the cheapest option. A hose in your situation would be a better solution. In principle, valid. Have violated or not violated the rules - this must be clarified in the supplying organization. It just so happens that from region to region their requirements inexplicably vary. Although the PUE is one for all.