What is BS EN 50290-2-21 - PVC insulation compounds rules and construction about? 
BS EN 50290-2-21 is a European standard on communication cables. BS EN 50290-2-21 is a part of the EN 50290 series that gives specific requirements for PVC insulation compounds used for communication cables. 
BS EN 50290-2-21 guideline provides an outline of insulating and sheathing materials of electric and optical cables.
Who is BS EN 50290-2-21 - PVC insulation compounds rules and construction for?
BS EN 50290-2-21 on PVC insulation compounds rules and construction is useful for:
- The cable industry
- The telecommunication industry
- Manufacturers of telecommunication cable 
- Cabling designers and installers
- Phone companies 
- Television cable operators
Why should you use BS EN 50290-2-21 - PVC insulation compounds rules and construction?
It is essential to have reliable guidelines to reduce the wear and tear of the cable. And, to ensure proper operation after installation in the required environment.  
BS EN 50290-2-21 provides guidelines to cabling designers and installers on how cables need to be handled for optimum usage.
When cables are handled according to the standards provided in BS EN 50290-2-21, it ensures resistance to corrosion, impact, abrasion, weathering, and even chemical rotting. Cables installed as per BS EN 50290-4-21 + A1 guidelines can give reliable functioning of appliances to the users. 
