ESE piezoelectric lightning conductor – Saint-Elme type

ESE piezoelectric lightning conductor - Saint-Elme type

    

ESE piezoelectric lightning conductor type Saint-Elme

A rod-type lightning conductor, connected to earth, efficiently works by altering, at its level, the equipotentials which match the structures of the building it protects. The emergence of the lightning conductor is an important factor in increasing the local electric field. The principle of the piezoelectric lightning conductor designed by Franklin France relies on several factors: the reinforcement of the local electric field and the early creation of a preferential discharge channel.
The Saint Elme® piezoelectric lightning conductor is mainly composed of the following:

1. Capture head
Profiled, inalterable and good conductor, structured to generate a forced air circulation at its tip and in its prolongation (VENTURI system: air intakes and peripheral ejectors).

2. Support pole
Of treated copper (or stainless steel according to models) which upper part has one or more stainless steel ion emitter points, inserted in an insulating sleeve and subjected to the potential supplied by the piezoelectric ceramic.

The emitter points are protected from direct impact by lightning and from the weather by the capture head which, like the support pole, is permanently connected to the earth potential.

3. Transducer (piezoelectric stimulator)
Built into the lower part of the pole and consisting of piezoelectric ceramics stressed in an insulating container, combined with a simple, perfectly reliable and mechanical stimulation system (CEA and FRANKLIN patents). A high-voltage cable running inside the pole connects the stimulator to the emitter point(s). The voltage created by the ceramic is applied to the emitter point through the high voltage cable.

Saint Elme® piezoelectric lightning conductor has a 2 year warranty. 

Click here to watch how a lighting conductor is mounted

Type

SE6

SE9

SE12

SE15

Excitation advance

ΔT = 15 µs

ΔT = 30 µs

ΔT = 45 µs

ΔT = 60 µs

Protection level

I

II

III

IV

I

II

III

IV

I

II

III

IV

I

II

III

IV

Hinstall (m)

Rp (m)

Rp (m)

Rp (m)

Rp (m)

2

13

15

18

20

19

21

25

28

25

28

32

36

31

34

39

43

3

19

22

27

31

28

33

38

43

38

43

49

53

47

52

58

64

4

25

29

36

41

38

43

51

57

51

57

65

72

63

69

78

85

5

32

37

45

51

48

55

63

71

63

71

81

89

79

86

97

107

6

32

38

46

52

48

55

64

72

63

71

81

90

79

87

97

107

8

33

39

47

54

49

56

65

73

64

72

82

91

79

87

98

108

10

34

40

49

56

49

57

66

75

64

72

83

92

79

88

99

109

20

35

44

55

63

50

59

71

81

65

74

86

97

80

89

102

113

30

35

45

58

69

50

60

73

85

65

75

89

101

80

90

104

116

60

35

45

58

75

50

60

75

90

65

75

90

105

80

90

105

120

Hinstall = mounting height, compared to the highest point (elevation) of the building

Rp = radius of protection, depending on the mounting height and the level of protection

The Saint Elme® piezoelectric lightning conductor is available in 4 different type with length of 2 m and 2 types with length of 1,5 m, thus covering through its protection radius, a wide range of applications:

– SE6 / 2m – ∆T=15µs

– SE9 / 2m – ∆T=30µs

– SE12 / 2m – ∆T=45µs

– SE15 / 2m – ∆T=60µs

– SE6 / 1,5m – ∆T=15µs

– SE9 / 1,5m – ∆T=30µs