wieland ELECTRICAL INSTALLATION INSTRUCTIONS FOR CONTENTS 1. Outdoor electrical installation in practice 2 2. Assessing the IP situation correctly 3 4. Choosing the right cable 7

1. ELECTRICAL INSTALLATION IN PRACTICE. Outdoor electrical installations are a particularly tricky process. Constant temperature changes, high UV radiation, high ozone levels, and mechanical wear eventually lead to material fatigue, which can lead to water ingress, and ultimately, plant failure. Alongside the choice of suitable materials, what is also crucial for the durability of an installation is the utmost care and attention when handling system components. It is important to understand exactly what is happening and what impact an unprofessional installation can have. AGING OF MATERIALS....

To prevent moisture from spreading through the cable system or from penetrating appliances, RST® connectors can be supplied with optional contact sealing (barrier seal). Let us assume that a connector needs to be used out in the open to supply power to a luminaire. By definition, a decision is made in favor of protection class IP54 (splash-proof from all sides). However, when you take a closer look at the sealed area, you might soon realize that sometimes the cable is completely coated with water for extended periods of time. This is due to the small reservoir between the cable and the seal....

3. SITUATION ANALYSIS. UNDERGROUND INSTALLATION It is not recommended to lay the system components directly in the ground. The connectors should be provided with suitable additional protection and be accessible for inspection, testing and maintenance. Installation pipes and floor boxes may be the solution in cases such as these. Ensure that water can drain by providing suitable drainage (e.g. gravel bed)! It is typically not a problem if components are covered with leaves, bark mulch, or stones as long as water is allowed to drain in accordance with the point “Installation position and additional...

HORIZONTAL INSTALLATION POSITION If the system is to be used outside for an extended period of time, a horizontal position should be chosen to guarantee water drainage. If this configuration is not possible, an additional cover should be used for protection. The cable arrangement is just as important, the cable must be laid in such a way that any draining water is not routed to the cable screw gland, but drops off beforehand. ADDITIONAL PROTECTION FROM THE WEATHER Installations that are exposed to the weather and outdoor conditions directly age a lot more quickly. The use of suitable measures...

HEAVY SOILING Before connecting, it is essential that the contact area and sealing points are free from foreign bodies to ensure that the plug connection works. It is therefore recommended that any dirt or dust in the area of the connection is removed prior to disconnecting. MATING FORCES In temperatures well below freezing, the mating forces increase due to hardening of the seal. This must be tested for individual applications to ensure proper function. TORQUE AND LOCKING The cable screw glands must be tightened to the specified torque amount. All connections must be locked, and care must be...

Selection of the appropriate cable plays a major role in safe and durable operation of the installation. By default, we offer the low-cost H05VV cable, but its field of application is restricted to indoor areas only. This cable is not suitable for outdoor areas and constantly humid or wet rooms! The H05VV cable is preferred for use indoors where, even though soiling occurs, it is not normally humid, let alone wet. Protection from dust (IP 6X) is particularly important here. Temporary wetness for cleaning purposes, however, is permissible. Outdoor installations without special demands can be implemented...

Cable systems must satisfy the required degree of protection. If water can accumulate or water condensation can occur, provisions for water drainage must be made prior to installation! This particularly applies to sealing points in the area of the strain relief. The longer the maintenance intervals are to be (e.g. areas where access is difficult or requires great effort), the better the components must be protected against weather conditions and moisture from the outset. Wieland Electric GmbH Brennerstraße 10 – 14 . 96052 Bamberg . Germany Phone +49 951 9324-0 . [email protected] Represented...