1010
TEN YEARS
WHY GUY WITH SYNTHETIC ROPES?
WHY MASTRANT?
DESIGNED FOR GUYING·UV RESISTANCE·HIGH STRENGTH
·
LOW ELONGATION – NO STRETCH·WEATHER DURABILITY
WIDE RANGE OF ACCESSORIES AND ”MUST HAVES“ FOR ANTENNA WORK
·
·
·
HOW?
CHOOSE APPROPRIATE GUYROPE
CALCULATE LENGTHS·THINK ABOUT IT·DO IT·REGULARLY CHECK IT
·
ANNIVERSARY
WHERE WE CAN SUPPORT YOU
B
A
C
B
E
D
F
A
B
C
TYPICAL INSTALLATIONS + RECOMMENDED GUY ROPES
A
TYPE OF USE
LEVELS*
Wire antenna
suspension
conven-
tional
wire
antennas
tension
- heavy
160m ...
MASTRANT®P
2
(3/32“)
3
(1/8“)
4
(5/32“)
5
(3/16“)
6
1/4“)
8
10
12
14
(5/16“)
(3/8“)
(1/2“)
(9/16“)
STRETCH
2,4%
high
wire,
Vertical
antenna
Up to
70ft.,
1-3“
Up to
140ft.,
2-4“
2-3 3-5 2-3 3-5 2-3
Mast
25-100mm
Up to
30ft., 3
el. 3-B or
long VHF
Yagi
Up to
70ft., 5
el. Yagi
for 20m
Lattice tower
Up to
70ft., 7
el. tri-
3 stack of
bander
Up to
200ft.,
5 el. Yagi
20m
3-6 [lbs.]
STRETCH = ELONGATION: 2.4%, CORE = POLYESTER, COVER = POLYESTER
breaking strength (BS)
220
440
880
110 0
1870
2870
4190
4850
7060
70
130
260
330
560
860
1260
1460
2120
safe working load (SWL)
PRICE
(incl. tax)
Feets
330
100
17
n/a
25
37
54
n/a
90
n/a
114
n/a
152
n/a
204
n/a
259
n/a
Size of couplers
$
5
5
5
5
6
6
7
8
10
Turnbuckle
6
6
6
6
8
8
10
12
14
Carabiner Shackle Chain
CODE
1
5
0.07
P-2
9
0.10
P-3
15
0.15
P-4
0.21
P-5
P-6
0.36
0.41
P-8
10
0.55
0.74
0.94
P-10
P-12
P-14
HD
HD
5
5
5
6
5
6
5
8
6
6
7
8
-
10
MASTRANT®M
(2/32“)
1
(3/32“)
2
(1/8“)
3
(5/32“)
4
(3/16“)
5
1/4“)
6
(5/16“)
8
(3/8“)
10
(1/2“)
12
* LEVELS = NUMBER OF GUY ATTACHMENT POINTS. OTHER ASSUMPTIONS: WIND SPEED UP TO 100mph, DISTANCE BETWEEN ANCHOR POINT AND BASE OF MAST > 70% OF THE HEIGHT
EXTRA
STRONG
STRETCH
< 1,2%
STRETCH = ELONGATION: <1.2%, CORE = DYNEEMA® DM 20, COVER = POLYESTER
220
70
35
n/a
490
150
41
860
260
68
1980
600
136
n/a
2650
790
214
n/a
4080
1220
272
n/a
5730
1720
383
n/a
8490
2550
666
n/a
12130
3640
1098
n/a
15
25
0.13
0.15
0.25
0.49
0.78
0.99
1.39
2.42
4
M-1
M-2
M-3
M-4
M-5
M-6
M-8
M-10
M-12
10
HD
5
5
5
6
5
5
5
6
6
5
5
6
7
5
5
6
8
6
6
8
7
7
10
8
8
12
-
10
10
16
-
10
12
20
BASIC INSTRUCTIONS TO GUY WITH SYNTHETIC ROPES
WHEN PLANNING AN “ANCHORING SYSTEM” (GUY-ROPES WITH END TERMINATION, COUPLERS AND ANCHORAGE)
THERE ARE A NUMBER OF FACTS THAT HAVE TO BE TAKEN INTO ACCOUNT:
The stability of the system is
1
determined by its weakest link.
That is why it is no use combining
a rope of 5000 kg of strength with a
turnbuckle 500 kg strong.
Even the most excellent
2
synthetic rope is elastic
– when guyed it elongates. In
the layout of the tower and its
anchorage (even when xing
elements of the antennas) you have
to reckon with this characteristic
and always consider how the
elongation of the anchoring system
will affect the overall construction.
In certain cases it will be necessary
to use a stronger rope (with a
smaller absolute extensibility),
than for other constructions that
are not negatively affected by
the elongation of the anchors. A
problem occurs especially in such
a case, when the ground anchor
point is situated too close to the
tower base, or when dealing with a
lattice tower with low exibility.
The rope must be screened
3
against all kind of sharp edges.
For this reason it is necessary to
x the rope with a thimble or tie
it to a coupler with a very smooth
surface. Be aware of the fact that
inappropriate metallic materials
corrode and therefore their
surface roughens. Never should
you tie a rope to a concrete slope
or to a stone! If you do want to
use a stone, a rock or a concrete
slope as ground anchor point, we
recommend using a loop from steel
rope, which you can connect to the
guy rope with the help of a smooth
coupler.
A great danger for any
4
synthetic rope lies in friction
against any object on its path. This
can cause the rope to be seriously
damaged or cut through, and has
to be avoided at all cost. Even a
guy rope on a tower can move
enough to suffer friction damage
if it touches anything along its
length, so please locate your guys
carefully. Particularly to be avoided
are trees and tree branches. If you
are using a tree support for a wire
antenna you must ensure that no
part of the synthetic rope can get
close enough to the tree to risk
damage by rubbing. Always use
steel rope near or in a tree. You
could use a pulley on the end of
a steel rope to keep the synthetic
rope well clear.
The lower part of the
5
anchoring system should
consist of steel rope 2-4 meters
in length. This ensures that the
synthetic rope isn’t “chewed up”
by an animal or gets damaged by
some human activity (intentionally
or unintentionally).
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