JATA TOWER ANALYSIS

STUDY OF THE EFFECTIVENESS OF DDCE 100 IN THE JATA TOWER

SITUATED IN THE AREA OF VIZCAYA (BASQUE COUNTRY)

1. Page 1 of 8 STUDY OF THE EFFECTIVENESS OF DDCE 100 IN THE JATA TOWER SITUATED IN THE AREA OF VIZCAYA (BASQUE COUNTRY)

OBJECT AND CONTENT OF THE STUDY

The purpose of this report is to study the effectiveness of the DDCE100 device, against direct lightning discharges, installed in the JATA Tower, owned by the Basque Government and managed by the ITELAZPI company, located in the area of ​​the VIZCAYA (BASQUE COUNTRY). This tower houses the Meteorological Radar service of AEMET of the Basque Country. The study is based on data provided by the company MÉTÉORAGE, a subsidiary of the FRENCH National Meteorological Institute. The system used is Remote Sensing by triangulation of the lightning signal, with a tolerance of +/- 50 meters. The tracking radio is 2 km around the tower. The period between January 1, 2015 and December 31, 2015 has been studied. TOTAL RAYS FALLEN IN THIS PERIOD IN 2 KM AROUND: 56 In principle, the JATA tower has suffered direct lightning impacts prior to the date of installation of DDCE 100.

DATA PROVIDED BY METEORAGE

The data provided in the reports of MÉTÉORAGE (htpp: // www.meteorage.fr. /) are the following: • Id: number of the impact in the list of the report. • Date: impact date with Day / Month / Year format. hour of impact with hh / mm / ss format, indicated in local time (MET) or in UTC (add + 1 for local time in winter) (add + 2 for local time in summer).
2. Page 2 of 8 • lat. : latitude of the impact in decimal degrees. • Long .: impact length in decimal degrees. • amperage. (cloud-soil): polarity and peak intensity of the discharge current in kiloamperes (1 kA = 1000 A). • gd-ax: semi-major axis of the confidence ellipsis of the location in km. (maxis) • pt-ax: semi-minor axis of the confidence ellipsis of the location in km. (maxis) • Incline: inclination in degrees of the ellipsis with respect to the North. • Distance: distance in kilometers between the point of impact and the city of reference or the coordinates used. • dir. (azimuth): angular direction of the point of impact with respect to the geographical North (in degrees, clockwise), as seen from the center of the study

STUDY OF RAYS IN THE JATA TOWER

3. Page 3 of 8 STUDY OF RAYS IN THE JATA TOWER (DATA PROVIDED BY METEORAGE) CONCEPT TOWER PROTECTED AGAINST THE RAY WITH THE DDCE100 January 2015 – May 2015 June 2015 July 2015 August 2015 September 2015 – December 2015 TOTAL RAYS 2 Km. A the round 0 1 11 44 ​​0 DAYS OF ELECTRICAL STORMS WITH RAYS IMPACTS IN THE STUDY ZONE 0 1 3 3 0 POSITIVE RAYS 0 0 0 1 0 NEGATIVE RAYS 0 0 4 18 0 RAYS BETWEEN CLOUDS 0 1 7 25 0 DIRECT IMPACTS ON THE TOWER 0 0 0 0 0 IMPACTS LESS THAN 100 m FROM THE TOWER (& lt; 100 m) 0 0 0 0 0 IMPACTS BETWEEN 100 m and 300 m FROM THE TOWER (100 m – 300 m) 0 0 3 0 0 IMPACTS BETWEEN 300 m and 500 m FROM THE TOWER (300 m – 500 m) 0 0 0 1 0 IMPACTS BETWEEN 500 m and 900 m FROM THE TOWER (500 m – 900 m) 0 0 2 8 0 IMPACTS OF THE TOWER TO MORE THAN 900 m 1 6 35 0 MAXIMUM INTENSITY NEGATIVE RAY 0 0 18.3 KA (07/01/2015) A 1.2 Km 33.3 KA (08/22/2015) at 1.3 Km 0 MAXIMUM POSITIVE RAY INTENSITY 0 0 0 6.2 KA (08/22/2015) at 1.5 Km 0 HALF INTENSITY RAYS NEGATIVES 0 0 12.7 KA 14.52 KA 0 AVERAGE INTENSITY POSITIVE RAYS 0 0 0 6.2 KA 0

LIKELIHOOD OF LIGHTNING IMPACT BASED ON DISTANCE TO THE JATA TOWER

4. Page 4 of 8 LIKELIHOOD OF LIGHTNING IMPACT BASED ON DISTANCE TO THE JATA TOWER AND TOTAL AMOUNT IN KILOAMPERIOS FALLS AROUND THE TOWER CONCEPT TORRE DE TELECOMUNICACIONES PROTECTED AGAINST THE RAY WITH THE DDCE100 January 2015 – May 2015 June 2015 July 2015 August 2015 September 2015 – December 2015 IMPACT ON THE TOWER (0 m) 0% 0% 0% 0% 0% IMPACTS LESS THAN 100 m FROM THE TOWER (& lt; 100 m) 0% 0% 0% 0% 0% IMPACTS BETWEEN 100 m and 300 m FROM THE TOWER (100 m – 300 m) 0% 0% 27,27% 0% 0% IMPACTS BETWEEN 300 m and 500 m FROM THE TOWER (300 m – 500 m) 0% 0% 0% 2,27% 0% IMPACTS BETWEEN 500 m and 900 m FROM THE TOWER (500 m – 900 m) 0% 0% 18,18% 18,18% 0% IMPACTS TO MORE THAN 900 m FROM THE TOWER 0% 100% 54 , 54% 79.54% 0% SUM OF KILOAMPERS FALLING AROUND THE TOWER (NEGATIVE RAYS) 0 0 50.8 KA 242.63 KA OR SUM OF KILOAMPERS FALLING AROUND THE TOWER (POSITIVE RAYS) 0 0 0 6.2 KA 0 DAYS OF MAXIMUM RAYS ACTIVITY 0 06/30/2015 (1 ray) 07/01/2015 (5 rays) 07/21/2015 (5 rays) 08/22/2015 (29 rays) 0

METEORAGE report (Google Earth Image)

5. Page 5 of 8 Photo 1. METEORAGE report (Google Earth Image) of lightning strikes on August 22, 2015, where 29 lightning impacts were recorded in 2 km around the tower. The closest impact was more than 500 meters and was negative and 13.9 KA. Specifically between 300 and 500 m, there were 4 and more than 900 m. 25 PROBABILITY OF RAY IMPACT BY DISTANCE TO THE JATA TOWER OF AUGUST 22, 2015 CONCEPT IMPACT PROBABILITY OF RAY IMPACT ON THE TOWER (0 m) 0% IMPACTS TO LESS THAN 100 M FROM THE TOWER (& lt; 100 m) 0% IMPACTS BETWEEN 100 m and 300 m FROM THE TOWER (100 m – 300 m) 0% IMPACTS BETWEEN 300 m and 500 m FROM THE TO

View of the JATA Tower

6. Page 6 of 8 Photo 2. View of the JATA Tower, where, according to data from the METEORAGE company, there have been 56 lightning impacts in 2 km around it. The closest impact was more than 100 meters and was negative and 6 KA. Specifically between 100 and 300 m, 3 were recorded, between 300 and 500 m, 1 was recorded, between 500 and 900 m, 10 were recorded and more than 900 m. 42 were registered

PROBABILITY OF ROTATION IMPACT BY DISTANCE TO THE JATA TOWER

7. Page 7 of 8 PROBABILITY OF ROTATION IMPACT BY DISTANCE TO THE JATA TOWER IN THE PERIOD INCLUDED BETWEEN JANUARY 1, 2015 AND DECEMBER 31, 2015 CONCEPT IMPACT PROBABILITY OF RAY IMPACT ON THE TOWER (0 m ) 0% IMPACTS LESS THAN 100 m FROM THE TOWER (

8. Page 8 of 8 produce at distances between 500 m and 900 m and 75% of impacts occur at distances greater than 900 m.

d) It can be seen that although the average intensity of negative rays is about 13 KA, there are several impacts of significant intensities, such as that recorded on August 22, 2015 from 33,300 A (negative) to 1.3 km from the tower, although It is true that one year of study is not enough, as to assess this concept. This makes us think that an electrical installation should be protected with potential lightning impacts of these intensities and above.

e) It is demonstrated that the DDCE compensates the variable electric field in its environment, preventing the formation of the ascending tracer and, therefore, a direct lightning strike. The real data prove that the risk of lightning impact increases as the storm moves away from the point where the DDCE is placed, which is logical, since the DDCE will compensate the electric field in its environment and it will increase again as that moves away from the DDCE.

5. Therefore the EFFECTIVENESS OF the DDCE in this study (Torre JATA) of 1 year and 5 months, in an area with a high incidence of lightning (Ng = 5), is 100% on impacts of direct rays in the structure that protects and 100% of impacts within the area of ​​its coverage radius of 100 meters,

6. The DDCE only has influence on the electric field that appears in its environment. It has NO influence on what happens in the cloud, nor on the number of storms that appear in the area nor the time in it, as is logical. Barcelona, ​​January 11, 2016 Fdo: Mr. Javier MALDONADO PARDO Senior Industrial Engineer Official number: 15.211 DINNTECO INTERNATIONAL, S.L.

 

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