Grounding enclosure - AWS810

AWS810 Installation Guide

Document code
Document type
User guide
  • Cable cutters
  • Cable stripper
  • Screwdriver

Use 16 mm2 (6 AWG) copper grounding cable to ground the enclosure.

WARNING A long cable between units (sensors, transmitters, power supplies, and displays) can cause a lethal lightning-induced current surge. Always ground the enclosure to a suitable grounded location with a short, low-resistance cable.
WARNING Make sure that the grounding cable material is adequate for the environmental conditions of the installation location. Always use a corrosion‑resistant cable unless otherwise instructed.
  1. Using a screwdriver or similar, punch through a knockout directly below the system grounding point, if not already done.
    System grounding point
    Enclosure grounding cable
  2. Connect the grounding cable to the system grounding point.
  3. Strip a 10–15 mm (0.39–0.59 in) sheath from the other end of the cable and solder it, or use a cable ferrule.
  4. Connect the cable to a grounded location.
    • With a Vaisala mast, connect the cable to the grounding connector.
    • With a non-Vaisala mast, connect the cable to a suitable grounded location using an applicable adapter, a cable lug, or similar.
    CAUTION The grounding connector location may vary depending on the mast. Always use the grounding connector with a Vaisala mast.
    System grounding point
    Enclosure grounding cable
    Grounding connector
    Grounding cables
  5. Use long enough grounding cables to avoid strain.
    CAUTION Keep the curve of the down conductor smooth with a minimum radius of the bent cable 20 cm (8 in) and never over 90° angles.
For more information about grounding Vaisala installations, see Grounding and Lightning Protection in Vaisala Outdoor Installations Technical Reference (M211786EN).