Our products

SRS cabel protection pipes with grooved interior

Cable protection pipes, class SRS (protection, pipes, difficult conditions) is our standard pipe that complies with SPF work standard 5200 and SP Technical Research Institute of Sweden’s inspection guidelines SPKB 1992:06.

Extena is Sweden’s leading player in the development and manufacture of cable protection pipes within its product category. Our products have a significantly higher quality and ring stiffness than standard requirements and offer both more efficient laying, lower total costs and a safer service life compared to traditional laying of power cables in a sand bed. As more and more grid companies realize the benefits of cable protection, our business in this area has grown dramatically. Today we supply cable protection for both large and small projects across the country.

Higher ring stiffness than standard
This is a big difference in the quality and ring stiffness of the cable protection pipes available on the market. The standard for the ring stiffness of cable protection pipe SRS is 8 kN, which in our opinion is far too low for pipelaying without a sand/rock flour bed. To ensure a long and safe service life, we manufacture our pipes with a ring stiffness of over 16 kN, in other words significantly higher than the standard.

Be aware that low price pipes are imported into the market that exactly meet the requirements for ring stiffness. There is a risk that these pipes will not withstand stress over time. However, with Extena cable protection pipes you can be sure that you will get a secure system with a long service life.

Pipes for rough terrain
Our cable protection pipes are specially designed for tougher terrain where high strength is a requirement. They are manufactured from high density polyethylene (PEHD) and have a ring stiffness (over 16 kN) that is significantly higher than standard requirements (8 kN). The pipes have a high resistance to external pressure and stress and are also resistant to most chemicals. They are also sealed to prevent the penetration of ground water and soil or sand. Quite simply, Extena’s cable protection pipes provide highly reliable protection for electrical cables – and thus offer optimal weather protection.

Grooved interior to reduce friction
Extena’s SRS and SRE-P cable protection pipes have a grooved interior to reduce friction when pushing through power cables. We see this as a big advantage.

Extena Prefab Kraft. SRS-rated cable protection pipe with predrawn power cable (4G25 AL).
Extena Prefab Kraft is an SRS-rated cable protection pipe with a predrawn power cable designed primarily for utility services in buildings, but is also used as a problem solver for other applications such as repairs and temporary installations. Extena Prefab Kraft make installation easier as the power cable is already installed in the cable protection pipe. The result is fast, efficient and easy pipelaying. Prefab Kraft is manufactured at our factory in Norsjö and is supplied with a dimension of 50 mm in lengths of 250 metres on a K16 drum. The SRS pipe is also approved for temporary open pipelaying.

Product benefits

Cable protection pipe SRS made of PEHD.
Extena cable protection pipes have a higher ring stiffness than specified in the standard. Over 16 kN instead of 8 kN.
he pipes have a grooved interior for reduced friction and easier pushing through.
The use of cable protection pipes instead of a sand bed provides more efficient propulsion, safer pipelaying and lower total costs.
Cable protection pipe SRS is also available with a predrawn power cable for more efficient installation.