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White PaperSurge protection for agricultural buildings
www.dehn-international.com
Contents
Surge protective devices for an agricultural building
Surge protective devices for bus systems and the telephones
Example of surge protective devices for an agricultural building with robotic milking system
2
White Paper Surge protection for agricultural buildings
WP006/E/0814 © Copyright 2014 DEHN + SÖHNE
Figure 1 Surge protective devices for an agricultural building
Table 1 Example of surge protective devices for an agricultural building with robotic milking system (technical data of the manufacturer must be observed)
No. in Figure 1 and 2 Surge protective device Part No.
DEHNventil DV ZP TNC 255 DEHNventil DV ZP TT 255alternative:DEHNshield DSH TNC 255DEHNshield DSH TT 255
Installed on the busbar upstream of the measuring device
900 390 900 391
941 300941 310
DEHNrail DR M 4P 255 3/N/PE ≤ 25 A 953 400
DEHNrail DR M 2P 255 DEHNflex DFL A 255
1/N/PE ≤ 25 A 1/N/PE ≤ 16 A
953 200 924 389
DEHNshield DSH TT 2P 255 941 110
SFL Protector SFL PRO 6X Multiple socket outlet 909 250
BLITZDUCTOR BSP M2 BE HF 5 + base part BXT BAS
CAN bus or ALCOM bus926 270 920 300
DEHNpatch DPA M CLE RJ45B 48 LAN 929 121
BLITZDUCTOR BXT ML2 BD 180 + base part BXT BASalternative:DEHNbox DBX TC 180
Telephone UK0
920 247 920 300
922 210
SEB 40 °C80 °C
precipitator
warehouse
supply for electric fence equipment
barn
cntrl
NT
milk receiving vessel
robo
tic s
yste
m
cleaning system
electric flycatcher
meas.distrib.
cntrl
SDBcntrl
power unitvacuum
switch controller
compr. air
PC
See Figure 2 for a detailed
overview of SPDs
3WP006/E/0814 © Copyright 2014 DEHN + SÖHNE
White Paper Surge protection for agricultural buildings
Complex electrical and information technology systems shape the image of modern agriculture. These systems are used to optimise and, if possible, automate time-consuming processes to increase the revenue.
For dairy animal breeding, this means
¨ That the fully automated milking system / feeding station identifies the transponder of the cow and controls the mil-king process or the food volume;
¨ That fresh milk is analysed for the presence of blood / infec-tions and is discarded or transferred to the milk receiving vessel;
¨ That the milk from the milking system is cooled in the milk receiving vessel and the waste heat of the compressor is passed through a heat exchanger to heat the water in an industrial water boiler (reduced costs by heating industrial water);
¨ That the cleaning system rinses the milk hoses;
¨ That the vacuum system provides a vacuum to extract milk from the cow;
¨ That compressed air is produced to actuate the entrance gates of the robotic milking system, position the feeding trough / droppings box and supply the forced cow traffic system;
¨ That electric flycatchers minimise fly populations and thus disease transmission;
¨ That ventilators improve the climate in the barn and thus animal health / milk quality;
Figure 1 shows an example of an agricultural building with robotic milking system. The individual systems are controlled via several data lines (Figure 2). The operator can access the entire building via modem.
In subsection 705.443 of the IEC 60364-7-705 standard it is recommended that lightning and surge protection measures
be taken if electronic equipment is installed. Table 1 shows suitable surge protective devices for the sample building (Figures 1 and 2).
Protective equipotential bonding according to IEC 60364-5-54 as well as supplementary protective equipotential bon-ding for agricultural and horticultural premises according to IEC 60364-7-705 is important to protect agricultural buil-dings against surges. These standards describe how to integ-rate extraneous conductive parts in the floor of the standing, lying and milking area (also recommended for slatted floors made of concrete).
Figure 2 Surge protective devices for bus systems and the tele-phone
robotic system
milk receiving vessel
controller switch
modem
PC
NT
4
White Paper Surge protection for agricultural buildings
WP006/E/0814 © Copyright 2014 DEHN + SÖHNE
Products and technical dataDEHNventil ZP
Type DV ZP TNC 255
Part No. 900 390
SPD acc. to EN 61643-11/ IEC 61643-11 Type 1 / Class I
Max. continuous operating voltage (a.c.) (UC) 255 V
Lightning impulse current (10/350 µs) [L1+L2+L3-PEN] (Itotal)
75 kA
Lightning impulse current (10/350 µs) [L-PEN] (Iimp)
25 kA
Nominal discharge current (8/20 µs) [L-PEN] / [L1+L2+L3-PEN] (In)
25 kA / 75 kA
Voltage protection level (UP) ≤ 1.5 kV
Type DV ZP TT 255
Part No. 900 391
SPD acc. to EN 61643-11/ IEC 61643-11 Type 1 / Class I
Max. continuous operating voltage (a.c.) (UC) 255 V
Lightning impulse current (10/350 µs) [L1+L2+L3-PEN] (Itotal)
100 kA
Lightning impulse current (10/350 µs) [L-N] / [N-PE] (Iimp)
25 kA / 100 kA
Nominal discharge current (8/20 µs) [L-N] / [N-PE] (In)
25 kA / 100 kA
Voltage protection level [L-N] / [N-PE] (UP) ≤ 1.5 kV / ≤ 1.5 kV
DEHNshield
Type DSH TT 2P 255
Part No. 941 110
SPD acc. to EN 61643-11/ IEC 61643-11 Type 1 / Class I
Energy coordination with terminal equip-ment / with terminal equipment (≤ 5 m)
Type 1 + Type 2 / Type 1 + Type 2 + Type 3
Max. continuous operating voltage (a.c.) (UC) 255 V
Lightning impulse current (10/350 µs) [L+N-PE] (Itotal)
25 kA
Lightning impulse current (10/350 µs) [L-N, N-PE] (Iimp)
12.5 kA / 25 kA
Nominal discharge current (8/20 µs) [L-N] / [N-PE] (In)
12.5 kA / 25 kA
Voltage protection level [L-N]/[N-PE] (UP) ≤ 1.5 kV / ≤ 1.5 kV
5WP006/E/0814 © Copyright 2014 DEHN + SÖHNE
White Paper Surge protection for agricultural buildings
DEHNshield
Type DSH TNC 255
Part No. 941 300
SPD acc. to EN 61643-11/ IEC 61643-11 Type 1 / Class I
Energy coordination with terminal equip-ment / with terminal equipment (≤ 5 m)
Type 1 + Type 2 / Type 1 + Type 2 + Type 3
Max. continuous operating voltage (a.c.) (UC) 255 V
Lightning impulse current (10/350 µs) [L1+L2+L3-PEN] (Itotal)
37.5 kA
Lightning impulse current (10/350 µs) [L-PEN] (Iimp)
12.5 kA
Nominal discharge current (8/20 µs) (In) 12.5 kA / 37.5 kA
Voltage protection level (UP) ≤ 1.5 kV
Type DSH TT 255
Part No. 941 310
SPD acc. to EN 61643-11/ IEC 61643-11 Type 1 / Class I
Energy coordination with terminal equip-ment / with terminal equipment (≤ 5 m)
Type 1 + Type 2 / Type 1 + Type 2 + Type 3
Max. continuous operating voltage (a.c.) (UC) 255 V
Lightning impulse current (10/350 µs) [L1+L2+L3+N-PE] (Itotal)
50 kA
Lightning impulse current (10/350 µs) [L-N]/[N-PE] (Iimp)
12.5 kA / 50 kA
Nominal discharge current (8/20 µs) [L-N] / [N-PE] (In)
12.5 kA / 50 kA
Voltage protection level [L-N]/[N-PE] (UP) ≤ 1.5 kV / ≤ 1.5 kV
DEHNrail
Type DR M 2P 255
Part No. 953 200
SPD acc. to EN 61643-11/ IEC 61643-11 Type 3 / Class III
Max. cont. operating voltage (d.c. / a.c.) (UC) 255 V / 255 V
Nominal discharge current (8/20 µs) (In) 3 kA
Total discharge current (8/20 µs) [L+N-PE] (Itotal)
5 kA
Voltage protection level [L-N] / [L/N-PE] (UP) ≤ 1250 V / ≤ 1500 V
Type DR M 4P 255
Part No. 953 400
SPD acc. to EN 61643-11/ IEC 61643-11 Type 3 / Class III
Max. continuous operating voltage (a.c.) (UC) 255 V / 440 V
Nominal discharge current (8/20 µs) (In) 3 kA
Total discharge current (8/20 µs) [L1+L2+L3+N-PE] (Itotal)
8 kA
Voltage protection level [L-N] / [L/N-PE] (UP) ≤ 1000 V / ≤ 1500 V
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White Paper Surge protection for agricultural buildings
WP006/E/0814 © Copyright 2014 DEHN + SÖHNE
DEHNflex
Type DFL A 255
Part No. 924 389
SPD acc. to EN 61643-11/ IEC 61643-11 Type 3 / Class III
Max. continuous operating voltage (a.c.) (UC) 255 V
Nominal discharge current (8/20 µs) (In) 3 kA
Total discharge current (8/20 µs) [L+N-PE] (Itotal) 5 kA
Combination wave (UOC) / [L+N-PE] (UOC total) 6 kV / 10 kV
Voltage protection level [L-N] / [L/N-PE] (UP) ≤ 1.25 kV / ≤ 1.5 kV
SFL-Protector
Type SFL PRO 6X
Part No. 909 250
SPD acc. to EN 61643-11/ IEC 61643-11 Type 3 / Class III
Max. continuous operating voltage (a.c.) (UC) 255 V
Nominal discharge current (8/20 µs) (In) 3 kA
Total discharge current (8/20 µs) [L+N-PE] (Itotal) 5 kA
Voltage protection level (UP) ≤ 1.5 kV
BLITZDUCTOR XT
Type BXT ML2 BD 180
Part No. 920 247
SPD class / SPD monitoring L / LifeCheck
Nominal voltage (UN) 180 V
Max. cont. operating voltage (d.c./a.c.) (UC) 180 V / 127 V
D1 Lightning impulse current (10/350 µs) total / per line (Iimp)
5 kA / 2.5 kA
C2 Nominal discharge current (8/20 µs) total / per line (In)
20 kA / 10 kA
Cut-off frequency line-line (fG) 25.0 MHz
Voltage protection level line-line / line-PG for Iimp D1 (Up)
≤ 270 V / ≤ 550 V
Voltage protection level line-line / line-PG at 1 kV/µs C3 (Up)
≤ 250 V / ≤ 550 V
Test standards IEC 61643-21 / EN 61643-21, UL 497B
Type BXT BAS
Part No. 920 300
Base part in the form of an extremely space-saving and universal four-pole feed-through terminal for the insertion of a protection module without signal disconnection
For mounting on 35 mm DIN rails acc. to EN 60715
Cross-sectional area (solid / flexible) 0.08 – 4 mm2 / 0.08 – 2.5 mm2
Earthing via 35 mm DIN rail acc. to EN 60715
7WP006/E/0814 © Copyright 2014 DEHN + SÖHNE
White Paper Surge protection for agricultural buildings
DEHNpatch
Typ DPA M CLE RJ45B 48
Part No. 929 121
SPD class T
Max. cont. operating voltage (d.c./a.c.) (UC) 48 V / 34 V
D1 Lightning impulse current (10/350 µs) per line (Iimp)
0.5 kA
C2 Nominal discharge current (8/20 µs)line-line / line-PG / line-PG (total) (In)
150 A / 2.5 kA / 10 kA
Voltage protection level line-line / line-PG for In C2 (UP)
≤ 180 V / ≤ 500 V
Voltage protection level line-line / line-PG at 1 kV/µs C3 (UP)
≤ 180 V / ≤ 500 V
Test standards IEC 61643-21 / EN 61643-21
DEHNbox
Type DBX TC 180
Part No. 922 210
SPD class / SPD monitoring L
Nominal voltage (UN) 180 V
Max. cont. operating voltage (d.c./a.c.) (UC) 180 V / 127 V
D1 Lightning impulse current (10/350 µs) total / per line (Iimp)
5 kA / 2.5 kA
C2 Nominal discharge current (8/20 µs) total / per line (In)
15 kA / 7.5 kA
Voltage protection level line-line / line-PG for Iimp D1 (Up)
≤ 300 V / ≤ 550 V
Voltage protection level line-line / line-PG at 1 kV/µs C3 (Up)
≤ 250 V / ≤ 550 V
Test standards IEC 61643-21 / EN 61643-21, UL 497B
BLITZDUCTOR SP
Type BSP M2 BE HF 5
Part No. 926 270
SPD class Q
Nominal voltage (UN) 5 V
Max. cont. operating voltage (d.c./a.c.) (UC) 6 V / 4.2 V
C2 Nominal discharge current (8/20 µs) total / per line (In)
20 kA / 10 kA
Cut-off fequency line-PG (fG) 100 MHz
Voltage protection level line-line / line-PG for In C2 (Up)
≤ 31 V / ≤ 74 V
Voltage protection level line-line / line-PG at 1 kV/µs C3 (Up)
≤ 11 V / ≤ 11 V
Test standards IEC 61643-21, UL 497B
WP006/E/0814 © Copyright 2014 DEHN + SÖHNE
Type designations of products mentioned in the white paper being at the same time registered trademarks are not especially marked. So if there is no marking of ™ or ® this does not mean that the type designation is a free trade name. Neither it can be seen whether patents or utility models and other intellectual and industrial property rights are available. We reserve the right to introduce changes in performance, configuration and technology, dimensions, weights and materials in the course of technical progress. The figures are shown without obligation. Misprints, errors and modifications excepted. Reproduction in any form whatsoever is forbidden without our authorisation.
actiVsense, BLITZDUCTOR, BLITZPLANER, DEHN, DEHN Logo, DEHN schützt, DEHNbloc, DEHNfix, DEHNgrip, DEHNguard, DEHNport, DEHNQUICK, DEHNrapid, DEHNshield, DEHNsnap, DEHNventil, HVI, LifeCheck, Red/Line are protected by German Trade Mark, by Community Trade Mark (EU) and/or in other countries.
Surge Protection DEHN + SÖHNE Hans-Dehn-Str. 1 Tel. +49 9181 906-0Lightning Protection GmbH + Co.KG. Postfach 1640 Fax +49 9181 906-1100Safety Equipment 92306 Neumarkt info@dehn.deDEHN protects. Germany www.dehn-international.com
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