METAR LADDER
METAR LADDER
2.4.1 METAR Horizontal Bends
2.4.2 METAR Inside
& Outside Risers
METAR 30° Horizontal Bends
METAR Inside Risers (all angles)
1.1 Slot Patterns
Details of the slot patterns for the METAR cable ladder system are given in
the following diagrams. These slot patterns are common for each METAR cable
ladder type, irrespective of material gauge.
METAR MT4 Straight Ladder
For 30° flat elbows, supports should be placed within 600mm of the end
of the flat elbow. For 30° flat elbows with radii of 450mm and above, an
intermediate support should be located radially at 15° under the flat elbow.
METAR MT4 Fittings
30°
600mm
For inside risers
(30°, 45°, 60°
& 90°) supports
should be placed
within 600mm of
the end of the
inside riser.
600mm
600mm
The slot
pattern for
the Metar
MT4 fittings
is repeated at
each end of the
fitting side wall
and centrally on
radial side walls
(elbows, tees &
crosses).
T = Side Wall Gauge (See section 1.2 for details).
600mm
METAR Outside Risers (all angles)
15°
600mm
METAR 45° Horizontal Bends
For 45° flat elbows, supports should be placed within 600mm of the end
of the flat elbow. For 45° flat elbows with radii of 450mm and above, an
intermediate support should be located radially at 22.5° under the flat
elbow.
For inside risers
(30°, 45°, 60°
& 90°) supports
should be placed
within 600mm of
the end of the
inside riser.
600mm
45°
METAR MT5 Straight Ladder
METAR MT5 Fittings
15
15
25
METAR Inside & outside Risers
in Offset Arrangement
600mm
25
7.5
44.5
T
11.5
T
44.5
25
12x7
120
T = Side Wall Gauge (See section 1.2 for details).
22.5°
600mm
11.5
36
36
125
1800mm
44.5
=
METAR 60° Horizontal Bends
The slot pattern
for the Metar
MT5 fittings
is repeated at
each end of the
fitting side wall
and centrally on
radial side walls
(elbows, tees &
crosses).
44.5
=
For 60° flat elbows, supports should be placed within 600mm of the end
of the flat elbow. An intermediate support should be located radially at 30°
under the flat elbow.
600mm
12x7
20
40
For inside & outside risers (30°, 45°, 60° & 90°) forming an offset of length
up to 1800mm, supports should be placed within 600mm of the end of the
offset and centrally on the inclined cable ladder.
60°
600mm
600mm
METAR MT6 Straight Ladder
METAR MT6 Fittings
15
25
15
25
1800mm
7.5
23
44.5
11.5
600mm
11.5
T
T
61
150
44.5
T = Side Wall
Gauge (See
section 1.2 for
details).
600mm
30°
25
12x7
120
The slot pattern
for the Metar
SW6 fittings
is repeated at
each end of the
fitting side wall
and centrally on
radial side walls
(elbows, tees &
crosses).
36
150
METAR 90°
Horizontal Bends
600mm
600mm
44.5
25
40
12x7
For 90° flat elbows, supports
should be placed within 600mm
ofthe end of the flat elbow.An
intermediate supportshould be
located radiallyat
45° under the
flat elbow.
90°
600mm
For inside & outside risers (30°, 45°, 60° & 90°) forming an offset of length
over 1800mm, supports should be placed within 600mm of the ends of the
inside & outside risers. The inclined cable ladder should be supported in
accordance with the support recommendations for a straight cable ladder run.
45°
39
600mm
40