The ARCMASTER™ has been designed by HMT to significantly reduce the likelihood of a rim fire caused by a lightning strike. This Submerged Grounding System provides multiple conduction paths for lightning induced electrical charges to be transmitted from the external floating roof to the tank shell and subsequently to the ground. The ARCMASTER™ was designed by HMT under the guidance of the recommendations of the API RP 545.

If you would like to significantly reduce the likelihood of such a lightning induced rim fire, choose the HMT ARCMASTER™ Submerged Grounding System.

Key Benefits
The ARCMASTER™ relies on innovative design features that contribute key benefits to the end user:
• Custom Designed — five components — each designed to function in concert with one another to protect the AST from a lightning induced rim fire
• Confirmed test results — testing has been carried out by experts in the field confirming that this system will significantly reduce the likelihood of a rim fire caused by a lightning strike
• Install — installation performed by experienced HMT personnel
• Low maintenance — workhorse design and materials

ARCMASTER^TM Resources

• ARCMASTER^TM Brochure
• Links to Applicable Standards including: API 650,
  API 653, API 2000, API RP 545, NFPA 11, NFPA 30 & NFPA 780