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Forend Eu Air Terminals are electronic area effective Lightning Rods , and Forend Eu Active Lightning Rod is constructed of noncorrosive material to avoid Chemical corrosion. The Air Terminal’s head functions in both cases of positive lightning and negative lightning.
It has active and passive ionization electrodes.It optimizes ionization in the atmosphere in the most guarantee manner by detecting the potential differentiation between the point where the lightning conductor is located and the ground by means of its passive electrodes.
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The ion productivity is maximized with the participation of internal ion generator system to this ionization dispersion. It controls the venturi system and ionization by means of the Aerodynamic structure of active ionization and direction electrodes.The resistance to Lightning Current has been tested in German BET Laboratories.It has been proved by ICMET Romania Research Development and Testing National Institute For Electrical Engineering that DL (Initiation Advance Time) of FOREND Eu is 60 ms, thus it conforms to NFC 17-102 Standards.The Air Terminal’s head have 25 - year guarantee for non-corrosion by Turkey Industry and Trade Ministry The protect of Costumer and Rivalry General Manager, with permisssion the date of 30.09.2003, The number of 16085.
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The Protection Areas for Forend Eu
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h (m)
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(Rp) ) Protection Radius (m)
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(ΔL=60m)
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Protection Level
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I
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II
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III
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6
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79
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97
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107
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10
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79
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99
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109
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20
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80
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102
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113
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30
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80
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104
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116
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60
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80
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105
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120
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Radius Protection Of Air Terminals
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The radius protection of an E.S.E. Air Terminal is calculated following,
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Rp2 = h( 2D-h) + ΔL( 2D+ΔL) h≥5 mt
In this formula;
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D: The advance step of The lightning or the jumping distance of lightning during way.
For protection level I D=20 m
For protection level II D=45 m
For protection level III D=60 m
ΔL (m): Calculated from V(m/µs).ΔT(/µs)
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V: The moving velocity of ions occur arround air terminal to lightning and in Standart V=1m/µs
ΔT: Early streamer emission time
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ΔL: The dedecting distance to lightning in ΔT times. This parameter is valiable according to the produced E.S.E air terminal and determined to test according to the valiable and special of prodection in laboratory. h: Height of the point of E.S.E air terminal (m) Rp: Radius Protection (m)
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