Winter can paralyze not only various aspects of everyday life but also individual segments of the economy, e.g. by impeding communication. Higher failure rates due to frost can also be a problem for the telecommunications industry. So what is worth paying attention to when selecting components so that fibre optic networks can survive the winter with temperatures dropping down to -40°?
The operating conditions for fibre optic connectors, passive elements, closures, outdoor cabinets, street cabinets, fibre optic poles, etc., are specified in the PN-EN 61753-1 operational standard.
There are defined categories of environments defining, inter alia, temperature ranges of their operation. Devices operating under certain conditions must be adapted to them. The type of materials used is important here. According to the PN-EN 61753-1 standard, the greatest exposure to low temperatures occurs in the following categories of environments:
- E – Extreme (-40°C to +85°C),
- OP+ – Outdoor protected + (-40°C to +75°C),
- I – Industrial (-40°C to +70°C),
- A – Outdoor aerial and G – Outdoor at ground level (-40°C to +65°C),
- S – Outdoor underground (-30°C to +60°C),
- OP – Outdoor protected (-25°C to +75°C).
In the case of fibre optic connectors, adapters, splitters and other fibre optic passive elements designed for operation in temperatures from -40°C to + 85°C, additional protection against precipitation and dust is required for their failure-free operation in the external environment.
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