Solutions / Lightning / Protection / Dissipation Array System
Dissipation Array® System (DAS®)
Engineered No-Strike Lightning Protection
The Dissipation Array® System (DAS®) prevents lightning strikes by reducing the local, storm-induced electric fields, interrupting the formation of upward streamers, thus preventing lightning strikes in the protected area. Because direct strikes are prevented, many secondary effects are eliminated as well.
With a success rate of over 99%, DAS works with grounding and surge technologies to provide complete protection from lightning and other electrical phenomena. Contact us for your DAS solution.
Benefits of DAS
- Prevents direct strikes to the protected site and the device itself
- Prevents fire, equipment damage, downtime, loss of life, loss of product, and the environmental effects associated with lightning strikes
- Exceptional return on investment, saving up to 85% of maintenance, repair, fire suppression, and replacement costs.
- Reduces risk of electrical impulses (EMP) on electrical service lines or data and control lines
- Eliminates the risk of flashover on Transmission & Distribution lines
Applications
To account for all the different structures that need lightning protection, we have designed several different DAS configurations. These configurations allow for installation on almost any structure, for virtually any industry. Each DAS expands the protected area, so a protection system can be a small as a single communications tower, or as large as busy petrochemical facility. Contact us for DAS lightning protection recommendations.
Common DAS Applications Include:
- Buildings of all types
- Utility Towers
- Storage Tanks
- Smoke stacks
- Offshore facilities
DAS FAQ
Q. How long will a DAS system last?
A. Under normal conditions, Dissipation Array® Systems (DAS®) have an average service life of over 20 years. Corrosive elements will shorten service life; LEC can use special materials for extended service life in corrosive environments. In addition, re-certification or full maintenance services can extend the DAS service life far beyond average. Please notify LEC of any problems with your system so we can repair or modify it during the warranty period.
Q. Have DAS-protected area ever been hit by lightning?
A. Yes, however, it is extremely rare. Generally, only improperly maintained DAS installations are struck. When lightning does strike, the DAS collects the strike and sends it to ground. Strikes account for less than 0.5% of DAS service hours. Please inform LEC of the potential issues with your DAS, and other related systems, so that corrective action can be taken. Read testimonials from clients with DAS systems.
Q. How does NFPA-780 apply?
A. DAS® technology is Charge Transfer System rather than a strike collection system. Since NFPA-780 deals only with strike collection (air terminals), it is not applicable to DAS.
LEC does however provide Spline Ball Terminal (SBT) components as part of UL Master label, NFPA-780 systems.
Additional Resources and Documentation
- DAS Product Sheet (4.3 MB)
- DAS Flammables Protection (325.1 KB)
- Client References (All files below are PDF format)
- Broadcast (102.5 KB)
- By Country (87.4 KB)
- Communications (110.2 KB)
- Computer & Data Centers (99.8 KB)
- Dual Dissipator Array (92.8 KB)
- Government (107.4 KB)
- International (122.4 KB)
- Meteorological Towers (95 KB)
- Nuclear Facilities (94.5 KB)
- Offshore Platforms (87.2 KB)
- Petrochemical (120.8 KB)
- Petroleum Storage (99.1 KB)
- Repeat Customers (91.9 KB)
- Stack Array (95.1 KB)
- Utilities (114.2 KB)
- Water & Waste Treatment (89.4 KB)
- Wood Products (92.1 KB)
- View other Lightning Protection products
