Early Streamer Emission ( ESE ) Lightning Conductor

ESE Lightning Conductors

Transient Voltage Surge Suppression
TVSS
Surge Protection Device
Electronic Low Voltage
Coaxial Microwave Device
Coaxial Protection Device
Data RJ 11Type
Data RJ 45 Type

Earth Improvement
Earth Compound

Flat C, 8/F,
Hang Seng Industral Building,
185-187 Wai Yip street,
Kwun Tong,
Kowloon,
HONG KONG

info@eetech.com.hk

TEL: (852) 2790 8873
FAX: (852) 2142 5703

To Our Eastern Express Technology

BEWARE LIGHTNING HAPPEN

• The awesome natural phenomenon of lightning is an ever present and unpredictable enemy. It is a constant danger to humanity in general and, in a world of increasingly complex and sophisticated building and equipment, a single direct strike, measured in microseconds, in result in physical damage and catastrophic failure. It can initiate fire, cause major breakdowns to electrical, telephone and computer installations and simultaneously cause substantial loss of revenue.

• Lightning is a common event; for example the Continental USA has received more than 1.25 billion lightning strikes in the last 20 years. Tropical regions of the world have even higher incidences of lightning. Death due to lightning averages around two per year per million of population on a worldwide basis.

• Since 1760 the most popular methods of lightning protection have involved sharp (Franklin) rods, horizontal conductors (Faraday Cage) or combinations of both. Many attempts have been made to assign protective areas to key points in a protection system. These methods have evolved into the Cone of Protection or: Rolling Sphere

• In Summary, it can be said that little improvement has been made in lightning protection design for several hundred years. However, continuing modern research methods, coupled with improved recording and monitoring equipment has led to a better understanding of the discharge process. Recordings have been made of pre-discharge electric fields, downward leader propagation, upward streamer initiation, peak current magnitudes, current wave shapes, propagation velocities and many other parameters.

• Our selected techniques provide for assessment of all major lightning parameters as applied to the geometry of each individual structure. Electric field concentrations of all structural points are compared to find their relative probability of lightning capture. The concept is inherently more rigorous, but does allow design engineers to closely relate cost, risk and performance level.

PT-Lightning products presented:


1. The COMPUTER enhanced design to account for widely variable structural geometries and sites elevation.

2. The LYRA CONDUCTOR is an dynamic air termination for attracting lightning discharge to earth and eliminate huge numbers of down conductor.

3. The SURGE COMPONENTS are reducing the surge impulse in the equipment coming from outside building service.


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