aemsa Wire Cable Tray

aemsa Wire Cable Tray
aemsa Wire
Cable Tray from
Mita cable management specialists have over 25 years experience in providing
solutions to the electrical industry.
The new aemsa Wire Cable Tray features a unique design
based on a double transverse wire. This gives greater overall
loading capacity, load carrying ability and a secure safety
edge.
LIGHTWEIGHT
This new design, with a wide range of brackets and supports
puts aemsa Wire Cable Tray at the forefront of the market.
Combined with MITA’s national support network including
electrical distributors and product specialists, the aemsa
system is sure to meet your requirements, no matter how
demanding the project.
REDUCED INSTALLATION TIMES
• 70mm Standard Depth offers greater carrying capacity
and strength
• Safety Edge; avoids damage to cables or installers
• Quick Fit Couplers avoid the need for special tools
• Fast Fix Brackets and Clips reduce installation time
• Electro Zinc Steel Wires with 20 microns of zinc protection
AVAILABLE IN:
Finishes Electro zinc, hot dip galvanised and stainless steel
Depth
35mm, 70mm and 105mm
COLOUR CODING:
To simplify ordering, we have colour coded finishes
Using only off set bolt cutters and simple clamps, bends can
be easily fabricated on site. This reduces both the number
of components required and also the installation time
Cost savings and quicker project completion
FLEXIBILITY
Any type of bend or junction can be manufactured simply on
site
CLEANLINESS
The open structure enables easier cleaning and reduces
retention of dust particles, making it particularly suitable for
use in food industries
BLUE
Electrozinc
RED
Hot Dip
Galvanised
GREEN
Stainless Steel
2
Telephone: 01352 792301
Index
2
Introduction to AEMSA Range
4
Installations
6
Creating Fittings
10
Product Range
11
Tray
13
Joining Accessories
16
Supports and Brackets
24
Technical
25
General Technical Characteristic
25
Electrical Continuity
25
Technical Data for Load Calculations
26
Permissible Loads:
Fixed Horizontal Installation to Wall
Suspended Installations
27
Loading Tables
27
Recommended Joints
28
Deflection of Trays and Brackets
28
Identification
29
Resistance to Corrosion and Chemical Agents
29
Environmental Characteristics Table
Email: [email protected]
3
installations
4
Telephone: 01352 792301
installations
Email: [email protected]
5
creating fittings - large radius flat bends
WIDTH 150
WIDTH 300
WIDTHS 200, 400, 500, 600
Tray width Number of sections
to remove
(mm)
see illustration
150
3
200
see illustration
300
6
400
8
500
10
600
6
Fixings
(JC1E)
3
3
4
6
8
10
JC1E
Telephone: 01352 792301
creating fittings - 90 degree flat bend
WIDTH 100
Tray width
(mm)
60
100
150
200
300
400
500
600
Fixings
(JC1E)
N/A
1
2
2
2
2
3
3
JC1E
WIDTHS 200-600
Email: [email protected]
7
creating fittings - tee or cross with gusset
CUTTING CABLE TRAY A
CUTTING CABLE TRAY B
Tray widths
(mm)
100-200
300-600
8
Fixings
(JC1E)
3
4
JC1E
Telephone: 01352 792301
creating fittings - change of direction
INTERNAL / EXTERNAL RISER
Offset bolt croppers
should be used to allow
an angled cut when
creating fittings.
Email: [email protected]
9
aemsa
10
Telephone: 01352 792301
tray
STEEL WIRE CABLE TRAY
Alt Code
4511110
4511115
4511120
4511130
4511206
4511210
4511215
4511220
4511230
4511240
4511250
4511260
4511320
4511330
4511340
4511350
4511360
Finish
(EZ)
Electroplated
MITA Ref
REZ35X100
REZ35X150
REZ35X200
REZ35X300
REZ60X60
REZ70X100
REZ70X150
REZ70X200
REZ70X300
REZ70X400
REZ70X500
REZ70X600
REZ105X200
REZ105X300
REZ105X400
REZ105X500
REZ105X600
Dimensions (mm)
A
B
40
100
40
150
40
200
40
300
65
60
75
100
75
150
75
200
75
300
75
400
75
500
75
600
110
200
110
300
110
400
110
500
110
600
Pack Qty
8x3m
4x3m
4x3m
4x3m
8x3m
4x3m
4x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
Alt Code
4512110
4512115
4512120
4512130
4512206
4512210
4512215
4512220
4512230
4512240
4512250
4512260
2512320
4512330
4512340
4512350
4512360
Finish
(HDG) Hot Dip
Galvanised
MITA Ref
REG35X100
REG35X150
REG35X200
REG35X300
REG60X60
REG70X100
REG70X150
REG70X200
REG70X300
REG70X400
REG70X500
REG70X600
REG105X200
REG105X300
REG105X400
REG105X500
REG105X600
Dimensions (mm)
A
B
40
100
40
150
40
200
40
300
65
60
75
100
75
150
75
200
75
300
75
400
75
500
75
600
110
200
110
300
110
400
110
500
110
600
Pack Qty
8x3m
4x3m
4x3m
4x3m
8x3m
4x3m
4x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
Alt Code
4515110
4515115
4515120
4515130
4515206
4515210
4515215
4515220
4515230
4515240
4515250
4515260
4515320
4515330
4515340
4515350
4515360
Finish
(SS)
Stainless Steel
MITA Ref
REI35X100
REI35X150
REI35X200
REI35X300
REI60X60
REI70X100
REI70X150
REI70X200
REI70X300
REI70X400
REI70X500
REI70X600
REI105X200
REI105X300
REI105X400
REI105X500
REI105X600
Dimensions (mm)
A
B
40
100
40
150
40
200
40
300
65
60
75
100
75
150
75
200
75
300
75
400
75
500
75
600
110
200
110
300
110
400
110
500
110
600
Pack Qty
8x3m
4x3m
4x3m
4x3m
8x3m
4x3m
4x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
2x3m
For Usable Cross Sectional Areas – see Technical Section
Email: [email protected]
11
tray
TRAY DIVIDER
RECOMMENDED FIXING:
FC1E
Alt Code
4571510
4571520
4571530
Finish
(EZ)
Electroplated
MITA Ref
DIV35E
DIV70E
DIV105E
Alt Code
4575510
4575520
4575530
Finish
(SS)
Stainless Steel
MITA Ref
DIV35S
DIV70S
DIV105S
Dimensions (mm)
B
A
17
26
17
56
17
76
Pack Qty
10x2m
10x2m
10x2m
TRAY COVER
ck
Qui
Alt Code
4541106
4541110
4541115
4541120
4541130
4541140
4541150
4541160
Finish
(EZ)
Electroplated
MITA Ref
TC60E
TC100E
TC150E
TC200E
TC300E
TC400E
TC500E
TC600E
Alt Code
4551485
Finish
(PVC)
MITA Ref
IDLABEL
Alt Code
4545106
4545110
4545115
4545120
4545130
4545140
4545150
4545160
Finish
(SS)
Stainless Steel
MITA Ref
TC60S
TC100S
TC150S
TC200S
TC300S
TC400S
TC500S
TC600S
Dimensions (mm)
B
A
60
20
100
20
150
20
200
20
300
20
400
20
500
20
600
20
Pack Qty
4x2m
2x2m
2x2m
2x2m
2x2m
2x2m
2x2m
2x2m
ID LABEL
12
Dimensions (mm)
A
B
100
30
Pack Qty
25
Telephone: 01352 792301
joining accessories
QUICK FIT COUPLER
ck
Qui
Alt Code
4561170
Finish
(EZ)
Electroplated
MITA Ref
QFC35E
Dimensions (mm)
A
B
22
141
Pack Qty
10
* For Recommended Joints – see Technical Section
1
2
3
!
JOINING CLAMP
Alt Code
4561110
Finish
(EZ)
Electroplated
MITA Ref
JC1E
Alt Code
4562110
Finish
(HDG) Hot Dip
Galvanised
MITA Ref
JC1H
Alt Code
4565200
4565205
Finish
(SS)
Stainless Steel
MITA Ref
SJ35S
SJ70105S
Alt Code
4565110
Finish
(SS)
Stainless Steel
MITA Ref
JC1S
Dimensions (mm)
A
B
24
24
Pack Qty
50
* Used when creating bends, tees etc
SIDE JOINT
Supplied with nut and bolt
Alt Code
4561200
4561205
Finish
(EZ)
Electroplated
MITA Ref
SJ35E
SJ70105E
Email: [email protected]
Dimensions (mm)
B
A
80
32
80
46
Pack Qty
25
25
13
joining accessories
EXTENDABLE JOINTS
Alt Code
4561150
Finish
(EZ)
Electroplated
MITA Ref
EJOINTE
Alt Code
4565150
Finish
(SS)
Stainless Steel
MITA Ref
EJOINTS
Dimensions (mm)
A
B
300
17
Pack Qty
10
QUICK FIX CLAMP
! Fast fix clip allows rapid
mounting of tray to
horizontal supports.
Alt Code
4561160
Finish
MITA Ref
QFIXC
Dimensions (mm)
A
B
18
18
ck
Qui
PLEASE NOTE: this clamp can only be used in
horizontal and suspension support applications.
It should not be used in a riser or vertical application
Pack Qty
25
FIXING CLAMP
Alt Code
4561120
14
Finish
(EZ)
Electroplated
MITA Ref
FC1E
Alt Code
4562120
Finish
(HDG) Hot Dip
Galvanised
MITA Ref
FC1H
Alt Code
4565120
Finish
(SS)
Stainless Steel
MITA Ref
FC1S
Dimensions (mm)
A
B
24
24
Pack Qty
50
Telephone: 01352 792301
accessories
BOLT CROPPERS
Alt Code
4580110
Dimensions (mm)
A
B
630
140
Finish
MITA Ref
BOLTCROP1
For illustration purposes. Product may differ from that shown
Pack Qty
1
WALL BRACKET AND ACCESSORY PLATE
Alt Code
4571120
4571130
Finish
(EZ)
Electroplated
MITA Ref
SHS1E
SHS2E
Alt Code
4575120
4575130
Finish
(SS)
Stainless Steel
MITA Ref
SHS1S
SHS2S
Dimensions (mm)
B
A
72
92
100
182
Pack Qty
10
5
Load
(kg)
40
50
FLEXIBLE CONDUIT TAKE OFF PLATE
Alt Code
4571315
Finish
(EZ)
Electroplated
MITA Ref
FCTP202532E
Dimensions (mm)
A
B
85
146
Pack Qty
10
Will accept 20mm, 25mm, 32mm conduit
Email: [email protected]
15
supports and brackets
FAST FIX BRACKET
RECOMMENDED FIXING:
ck
Qui
No additional fixings required
Alt Code
4550110
4550111
4550112
4550113
4550114
4550115
4550116
Finish
(EZ)
Electroplated
MITA Ref
SR100E
SR150E
SR200E
SR300E
SR400E
SR500E
SR600E
A
144
194
244
344
444
544
644
Dimensions (mm)
B
82
82
82
82
132
132
132
C
42
42
42
42
42
42
42
Pack Qty
10
10
10
10
5
5
5
Load
(kg)
234
176
128
100
250
215
180
WALL AND SUSPENSION BRACKET
Alt Code
4571120
4571130
Finish
(EZ)
Electroplated
MITA Ref
SHS1E
SHS2E
Alt Code
4575120
4575130
Finish
(SS)
Stainless Steel
MITA Ref
SHS1S
SHS2S
Dimensions (mm)
B
A
72
92
100
182
Pack Qty
10
5
Load
(kg)
40
50
HORIZONTAL SUPPORT BRACKET
RECOMMENDED FIXING:
QFIXC or FC1E
Alt Code
4550310
4550315
4550320
4550330
16
Finish
(EZ)
Electroplated
MITA Ref
SO100E
SO150E
SO200E
SO300E
A
140
190
240
340
Dimensions (mm)
B
C
118
50
118
50
118
50
118
50
ck With
Qui
D
23
23
23
23
Pack Qty
10
10
10
10
Load
(kg)
320
190
168
102
Telephone: 01352 792301
supports and brackets
HORIZONTAL SUPPORT BRACKET
ck With
Qui
RECOMMENDED FIXING:
QFIXC or FC1E
Alt Code
4551110
4551115
4551120
4551130
4551140
4551150
4551160
Finish
(EZ)
Electroplated
MITA Ref
S100E
S150E
S200E
S300E
S400E
S500E
S600E
Finish
(HDG) Hot Dip
Galvanised
MITA Ref
S100H
S150H
S200H
S300H
S400H
S500H
S600H
Alt Code
4552110
4552115
4552120
4552130
4552140
4552150
4552160
Alt Code
4555110
4555115
4555120
4555130
4555140
4555150
4555160
Finish
(SS)
Stainless Steel
MITA Ref
S100S
S150S
S200S
S300S
S400S
S500S
S600S
A
144
194
244
344
444
544
644
Dimensions (mm)
B
82
82
82
82
130
130
130
C
42
42
42
42
42
42
42
Pack Qty
10
10
10
10
5
5
5
Load
(kg)
234
176
128
100
250
215
180
HORIZONTAL SUPPORT SET
ck With
Qui
Alt Code
4551210
4551215
4551220
4551230
4551240
4551250
4551260
Finish
(EZ)
Electroplated
MITA Ref
CS100E
CS150E
CS200E
CS300E
CS400E
CS500E
CS600E
A
162
212
262
362
462
562
662
Dimensions (mm)
B
200
200
200
200
200
200
200
C
55
55
55
55
55
55
55
Pack Qty
2
2
2
2
2
2
2
C
55
55
55
55
55
55
55
Pack Qty
2
2
2
2
2
2
2
Load
(kg)
523
365
304
238
200
147
131
RECOMMENDED FIXING:
QFIXC or FC1E
ADJUSTABLE SUPPORT BRACKET
ck With
Qui
Alt Code
4551510
4551515
4551520
4551530
4551540
4551550
4551560
Finish
(EZ)
Electroplated
MITA Ref
CSO100E
CSO150E
CSO200E
CSO300E
CSO400E
CSO500E
CSO600E
Email: [email protected]
A
162
212
262
362
462
562
662
Dimensions (mm)
B
140
140
140
140
140
140
140
RECOMMENDED FIXING:
QFIXC or FC1E
17
supports and brackets
INSULATING FLOOR SUPPORT BRACKET
! Used in a raised floor application
ck
Qui
! 100kg max load per support
! Maximum 1m span recommended
between supports
Alt Code
4571700
18
Finish
(PVC)
MITA Ref
FSB
A
85
Dimensions (mm)
B
45
C
45
Pack Qty
20
Telephone: 01352 792301
supports and brackets - pendant supports
SWIVEL PENDANT SUPPORT
Locking Pin
Alt Code
4551410
4571115
Finish
(EZ)
Electroplated
MITA Ref
PS5E
PSLPE
Alt Code
4555410
4575115
Finish
(SS)
Stainless Steel
MITA Ref
PS5S
PSLPS
A
116
Dimensions (mm)
B
C
150
60
D
100
Pack Qty
1
1
Load
(kg)
500
For use with “U” Rail
PENDANT SUPPORT
ck With
Qui
RECOMMENDED FIXING:
QFIXC or FC1E
Alt Code
4551910
4551915
4551920
4551930
4551940
4551950
4551960
Finish
(EZ)
Electroplated
MITA Ref
C100E
C150E
C200E
C300E
C400E
C500E
C600E
Alt Code
4555910
4555915
4555920
4555930
4555940
4555950
4555960
Finish
(SS)
Stainless Steel
MITA Ref
C100S
C150S
C200S
C300S
C400S
C500S
C600S
A
160
210
260
360
460
560
660
Dimensions (mm)
B
87
87
87
95
100
110
110
C
50
50
50
50
50
50
50
Pack Qty
1
1
1
1
1
1
1
Alt Code
4555420
Finish
(SS)
Stainless Steel
MITA Ref
URAILS
A
1000
Dimensions (mm)
B
55
C
30
Pack Qty
4
U RAIL
Alt Code
4551420
Finish
(EZ)
Electroplated
MITA Ref
URAILE
Load
(kg)
500
For use with horizontal pendant supports
Email: [email protected]
19
supports and brackets
SUSPENSION SUPPORT BRACKET
RECOMMENDED FIXING:
ck With
Qui
QFIXC
FC1E
Alt Code
4550410
4550415
4550430
4550430
Finish
(EZ)
Electroplated
MITA Ref
SSO100E
SSO150E
SSO200E
SSO300E
A
145
195
245
345
B
180
180
180
180
Dimensions (mm)
C
50
50
50
50
D
23
23
23
23
E
118
118
118
118
Pack Qty
4
4
4
4
Load
(kg)
264
154
107
85
HORIZONTAL SUSPENSION SUPPORT AND FLOOR BRACKET
RECOMMENDED FIXING:
ck With
Qui
QFIXC or FC1E
Alt Code
4551310
4551315
4551320
4551330
4551340
4551350
4551360
Finish
(EZ)
Electroplated
MITA Ref
VS100E
VS150E
VS200E
VS300E
VS400E
VS500E
VS600E
Alt Code
4552310
4552315
4552320
4552330
4552340
4552350
4552360
Finish
(HDG) Hot Dip
Galvanised
MITA Ref
VS100H
VS150H
VS200H
VS300H
VS400H
VS500H
VS600H
Alt Code
4555310
4555315
4555320
4555330
4555340
4555350
4555360
Finish
(SS)
Stainless Steel
MITA Ref
VS100S
VS150S
VS200S
VS300S
VS400S
VS500S
VS600S
A
50
50
50
50
50
50
50
Dimensions (mm)
C
B
185
150
235
200
285
250
385
350
485
450
585
550
685
650
D
38
38
38
38
38
38
38
Pack Qty
10
10
10
10
5
5
5
Load
(kg)
128
79
177
112
71
50
30
HEAVY DUTY SUSPENSION SUPPORT
RECOMMENDED FIXING:
FC1E
Alt Code
4551620
4551630
4551640
4551650
4551660
20
Finish
(EZ)
Electroplated
MITA Ref
VSR200E
VSR300E
VSR400E
VSR500E
VSR600E
A
42
42
42
42
42
Dimensions (mm)
B
C
268
240
348
320
468
440
548
520
668
640
D
60
60
60
60
60
Pack Qty
1
1
1
1
1
Load
(kg)
523
531
350
274
234
Telephone: 01352 792301
supports and brackets
EARTHING CLAMP
Alt Code
4571310
Finish
(EZ)
Electroplated
MITA Ref
EDE
Dimensions (mm)
A
B
120
44
Pack Qty
10
SUSPENSION SUPPORT AND CHANNEL FIXING BRACKET
Alt Code
4551430
Finish
(EZ)
Electroplated
MITA Ref
CS40E
Alt Code
4555430
Finish
(SS)
Stainless Steel
MITA Ref
CS40S
Dimensions (mm)
A
B
60
40
Pack Qty
30
NOTE: for suspension 2 x CS40 to be used. For use with trays up to 100mm only.
C SUPPORT
Alt Code
4551440
Finish
(EZ)
Electroplated
MITA Ref
CSUPPORT
Email: [email protected]
A
70
Dimensions (mm)
B
36
C
39
Pack Qty
10
Load
(kg)
90
21
supports and brackets
L SUPPORT
Finish
(EZ)
Electroplated
MITA Ref
LSUPPORT
Alt Code
4551450
A
104
Dimensions (mm)
B
36
C
39
Pack Qty
10
Load
(kg)
61
SUSPENSION BRACKETS - VERTICAL
Alt Code
4571408
4571410
Finish
(EZ)
Electroplated
MITA Ref
GTV8
GTV10
A
36
42
B
38
45
C
18
21
Dimensions (mm)
D
38
45
E
Ø9
Ø11
F
M8
M10
Dimensions (mm)
D
6
8
E
19
19
F
40
40
H
19
20
Pack Qty
10
10
Load
(kg)
120
250
SUSPENSION BRACKETS - HORIZONTAL
Alt Code
4571416
4575418
Finish
(EZ)
Electroplated
MITA Ref
GHS6
GHS8
A
50
50
B
21
21
C
46
46
Alt Code
4571436
4571438
Finish
(EZ)
Electroplated
MITA Ref
GVS6
GVS8
A
92
92
B
21
21
Dimensions (mm)
C
33
33
22
D
6
8
E
19
19
Pack Qty
20
20
Pack Qty
20
20
Load
(kg)
70
70
Load
(kg)
70
70
Telephone: 01352 792301
supports and brackets
THREADED ROD
Alt Code
4551467
4551470
4551480
4551481
4551482
Finish
(EZ)
Electroplated
MITA Ref
M610E
M805E
M810E
CVM6E
CVM8E
Alt Code
Finish
(SS)
Stainless Steel
MITA Ref
4555470
4555480
M805S
M810S
Alt Code
4725912
4575110
4326605
Finish
(SS)
Stainless Steel
MITA Ref
M6X12S
M6X20S
M8X20S
Dimensions (mm)
B
A
M6
1000
M8
500
M8
1000
M6
500
M8
1000
Pack Qty
10
10
10
50
50
Dimensions (mm)
B
A
24
14
24
14
24
14
Pack Qty
150
150
150
Load
(kg)
100
100
100
100
100
SCREWS
Alt Code
4721912
4571110
Finish
(EZ)
Electroplated
MITA Ref
M6X12E
M6X20E
Email: [email protected]
23
technical
Technical
25
General Technical Characteristic
25
Electrical Continuity
25
Technical Data for Load Calculations
26
Permissible Loads:
Fixed Horizontal Installation to Wall
Suspended Installations
24
27
Loading Tables
27
Recommended Joints
28
Deflection of Trays and Brackets
28
Identification
29
Resistance to Corrosion and Chemical Agents
29
Environmental Characteristics Table
Telephone: 01352 792301
technical
GENERAL TECHNICAL CHARACTERISTICS OF AEMSA WIRE CABLE TRAY
MATERIAL
LOAD TEST ON AEMSA WIRE CABLE TRAY MOUNTS
C4D -grade steel rod, according to Standard UNE EN
10016-2/3
Surface coating with three types of finish:
Electrolytic zinc coating, according to Standard UNE EN
12329:01
Hot-dip galvanised coating, according to Standard UNE EN
ISO 1461
Admissible Work Load Test according to UNE EN 615372002 (CEI 61537)
Results: See the section "Technical data for load calculation"
of this catalogue
AISI-304-grade stainless steel rod, equivalent to x5CrNi 1810 grade according to Standard UNE EN 10088-2
Surface treatment: Degreased, polished and electrolytic
passivation
Comparative test of the different surface finish coatings,
according to UNE 112017-1992
Conclusions: see the paragraph on “Resistance to corrosion
and chemical agents”
COMPLIANCE WITH THE STANDARD UNE
EN 61537-2002 (CEI 61537)
ELECTRICAL CONTINUITY TEST IN AEMSA WIRE CABLE
TRAY
“Tray systems for cable ducting”
Electrical Continuity Test according to Standard UNE EN
61537-2002(CEI 61537), in which the tray is classified: “Tray
System with electrical continuity characteristics” (See
paragraph on “Electrical Continuity and Earthing”).
OPERATING TEMPERATURE
-40ºC to +120ºC
ADMISSIBLE WORK LOAD:
Please refer to the section “Technical Data for Load
Calculation” of this catalogue.
IMPACT STRENGTH:
20 J (equivalent to the degree IK-10 according to UNE-EN
50102:1996)
ELECTRICAL PROPERTY:
Electrically conductive
DECLARATION OF CONFORMITY:
CE Marking.
Compliance with the European Directive BT73/23/EEC.
Compliance with the standard UNE-EN 61537:2002 (CEI
61537), with classification:
Metal Part
Non Flame Propagating
System with Electrical Continuity
Electrically Conductive Part
Without Coating (Stainless Steel)
With Coating (C4D Steel)
Minimum Temperature: -40ºC
Maximum Temperature: +120ºC
Free Area of the Base: Classification Z
Impact Strength up to 20J
FIRE REACTION TEST:
Classification: M 0 according to UNE 23727-90
PROTECTION FROM MECHANICAL DAMAGE
Test Results: Classification Degree IK-10 according to UNE
EN 50102-96
LOAD TEST ON ELECTROWELDED MESH TRAYS
Admissible Work Load Test according to UNE EN 615372002 (CEI 61537)
Results: See the section "Technical data for load calculation"
of this catalogue
Email: [email protected]
CORROSION RESISTANCE TEST BY SALT SPRAY
CHAMBER ON THE DIFFERENT FINISHES OF THE
AEMSA WIRE CABLE TRAY
ELECTRICAL CONTINUITY AND EARTHING:
UNE EN 61537 : 2002
The standard UNE EN 61537: 2002 stipulates that for trays
with electrical continuity characteristic (metallic), it is
mandatory to maintain continuity by one equipotential
connection and one or several earthing connections, if
required and dependant on the eventual use of the tray
system
The aemsa joint system and also the different accessories
that form part of the range, comply with the electrical
continuity test established in the standard, ensuring an
impedance of 50 m! maximum.
To maintain this impedance value with bolted accessories, it
is recommended that torque values of greater than 5 Nm are
used together with the recommended joints
CABLE TRAY SHOULD NOT BE USED AS THE PRIMARY
EARTH
TECHNICAL DATA FOR LOAD CALCULATIONS USEABLE CROSS SECTIONAL AREA
Tray Model
35x100
35x150
35x200
35x300
60x60
70x100
70x150
70x200
70x300
70x400
70x500
70x600
105x200
105x300
105x400
105x500
105x600
Usable Section
(mm2)
2688
4288
5888
9088
2666
5268
9112
12328
19028
25728
32428
39128
18768
28968
39168
49368
59568
25
technical
PERMISSIBLE LOADINGS
The permissible load values correspond to an evenly
distributed load that can be applied, with guaranteed safety,
in normal conditions of use, according to the results
obtained from the test. This is based on the criteria of the
standard for cable trays, UNE-EN 61537:2002 (CEI61537)
type iii test, of point 10.3
The tests were performed according to the layout of the
trays recommended in figure 1. The trays were loaded
evenly using the joints and fixings recommended in this
catalogue for each tray type, as well as the horizontal
supports corresponding to each tray type and width. Three
tests were performed for each tray type with a different
distance between supports (L). The joints are placed at L/5
from the central support.
Figure 1: Tray layout used for the load test
• L: Recommended distance between supports. It can be 1m, 1.5m or 2m depending on the tray size and the applied load
• L/5: Recommended distance for couplers between trays relative to support points.
The allowed maximum load (kg/m) is determined from the longitudinal and transversal deflections (see below). These
deflection must be below the following values shown. The maximum longitudinal deflection must be below 1% of the distance
between supports. The maximum transversal deflection must be below 5% of the width of the tray.
Example of the transversal and longitudinal deflection
Loading Tables for each tray type according to the distance between supports is
indicated in the following table:
SUSPENDED INSTALLATION
• Tray widths of 100, 150, 200 and 300 – use VS suspension brackets.
• Tray widths of 400, 500 and 600 – use VSR suspension brackets.
26
Telephone: 01352 792301
technical
HORIZONTAL / SUSPENSION SUPPORTS
LOADING TABLE CAPACITIES FOR ELECTRO ZINC, HOT DIP GALV AND STAINLESS STEEL TRAYS
Loading capacity (kg/m)
Tray Dimensions
35x100
35x150
35x200
35x300
60x60
70x100
70x150
70x200
70x300
70x400
70x500
70x600
105x200
105x300
105x400
105x500
105x600
1.5m
Span
27
30
31
32
41
55
58
58
72
79
85
90
101
104
106
110
119
1m
Span
49
51
53
59
69
88
93
121
120
138
137
163
147
150
171
184
197
2m
Span
19
19
20
21
30
38
42
42
55
61
56
67
79
77
84
77
91
RECOMMENDED JOINTS BETWEEN TWO CONSECUTIVE TRAYS
Sections for the load values expressed in this catalogue
Side Joints Required
QFC35E
35x100
35x150
35x200
35x300
60x60
70x100
70x150
70x200
70x300
70x400
70x500
70x600
105x200
105x300
105x400
105x500
105x600
Email: [email protected]
2 x QFC35E
Base Joints Required
QFC35E
1
1
2
1
1
2
2
3
3
1
2
2
3
3
27
technical
DEFLECTION OF TRAYS AND BRACKETS
The trays may be deformed by the weight of the cabling.
The deformation, or F value, known as deflection, should not
exceed the value indicated by the UNE-EN 61537:2002
standard (CEI 61537), which requires compliance with the
following:
On the supports, the maximum deformation or deflection
(Fmax) takes place at the end, and its limit value complies
with the standard:
FL<
L
( (L=Distance
Longitudinal deflection
100
between supports)
FT<
A
( (A=Tray width)
20
F max
D
20
Transversal deflection
(D= Support width)
IDENTIFICATION
All tray sections must be identified in order to comply with
the legislation in force, so that the manufacturer, tray type
and EC marking are clearly visible. In this regard, aemsa tray
is identified by means of an independent marker that is
attached between the rods on each length.
28
Telephone: 01352 792301
technical
RESISTANCE TO CORROSION AND CHEMICAL AGENTS
The atmosphere's action on metals is one of the main
problems caused by corrosion, leading to major economic
losses due to suitable basic criteria in the design and
location of the installations. Corrosion is an electrochemical
phenomenon since it is caused by the loss of mass of metals
through the ionisation of these metals when an electrical
current is run through an electrolyte.
Corrosion is promoted by three fundamental factors:
Moisture (without moisture there is no atmospheric
corrosion, since it is the water that acts as the electrolyte),
atmospheric pollution, particularly concentrations of SO that
have a major capacity to damage metal, and the
concentration of chlorides (Cl ions), that are located near
marine environments.
Corrosion causes the oxidation of the material, giving rise to
a continuous loss of mass, which contributes to the gradual
loss of the characteristics of the metals, both mechanical
and electrical continuity, with the major risk that this entails
for the installation and the users.
As indicated in the Low Voltage Electrotechnical Regulation,
when the presence of corrosive or pollutant substances,
including water, may provoke corrosion or degradation, the
parts of the cable management system that are prone to
damage must be duly protected or manufactured in a
material that is resistant to the substance. Moreover, it is
expressed that there cannot be any mutual contact between
different metals that may form electrochemical reactions,
unless specific measures are taken to avoid the
consequences of these contacts.
In this regard, suitable coatings are provided for aemsa wire
cable tray according to where they are to be located. These
coatings are:
ZINC (silver)
This is carried out in accordance with the instructions of the
UNE EN 12329-01 standard: “Protection from metal
corrosion. Electrolytic zinc coatings on iron or steel”. Zinc
coating (silver) is advisable for environments with a
moderately aggressive environmental with a minimum
thickness of 8 microns.
HOT DIP GALVANISED COATING
Hot dip galvanised coating is a process based on the direct
immersion of the parts in a zinc bath smelted according to
the UNE EN ISO 1461 standard: 99, so that fairly high micron
levels (above 100) can be obtained for aemsa wire cable
tray.. This type of coating is conceived for installations
subject to high environmental aggression.
IMPORTANT: Hot dip galvanised coating is a coating
whose immersion process (in zinc vats), leads to certain
defects of appearance, such as whitish stains, irregular
surfaces and in some cases grey stains or decolouration.
All these defects are normal to this type of coating. They
are admissible according to UNE EN ISO 1461 standard,
and do not reduce the protection for the product. To
minimise this type of aesthetic problem, appropriate
storage recommendations should be followed.
However, in moist environments, the initial appearance of
whitish stains or a dark colour are inevitable, although they
disappear in time and will eventually take on the
characteristic grey hue of hot dip galvanising.
Email: [email protected]
STAINLESS STEEL
While it is not a surface coating as such, stainless steel
provides excellent corrosion behaviour thanks to the
characteristics of the actual material. The aemsa wire cable
tray series can be supplied with this material, which is
suitable for a highly aggressive environment. The quality of
the stainless steel is AISI 304.
The following table is a quick guide to help in the choice of
the type of tray to choose in each type of installation,
according to the environmental characteristics.
Environment
Interior Installation/
Non-aggressive
environment
Interior
Installation/Aggressive
environment
Exterior/Moderately
Aggressive
Environment
Exterior
Enviornment/Severely
aggressive
(coastal, chemical
industries, etc)
Food Industry
EZ
HDG
SS (AISI304)
Recommended
Possible
Possible
Not recommended
Possible
Recommended
Not recommened
Recommended
Possible
Not recommended
Possible
Recommended
Not recommended Not recommended
Recommended
INTERIOR INSTALLATION / NON AGGRESSIVE
ENVIRONMENT:
Those in which, as a result of the location of the installation
and the processes performed in them, the atmosphere is
barely polluted, ie, pollution-free environments, with low
levels of moisture.
INTERIOR/AGGRESSIVE ENVIRONMENT:
Aggressive interior environments are those which are
polluted and moist as a result of the location of the
installation and /or the type of activity. Eg: installations with
high emissions of water vapour, locations with major levels of
moisture where the wetting times of the installation are high,
high levels of SO2 caused by the location of the installation
or by the actual process, high levels of chlorides due to
closeness to coasts, etc. Any of the above cases, or a
combination of them, may give rise to an interior installation
rated as aggressive in terms of corrosion.
EXTERIORS WITH A MODERATELY AGGRESSIVE
ENVIRONMENT:
Any external installation will be subjected, by its very nature,
to more extreme environmental conditions than an interior
application.
SEVERELY AGGRESSIVE EXTERIORS:
This case may be compared to locations with a high level of
pollution, such as urban area, coastal areas, areas with high
environmental humidity, etc.
FOOD INDUSTRY:
Gives good resistance to freshwater, corrosion, natural
atmospheres and foodstuffs.
29
Other products from MITA
WIBE
Ladders
Wibe Ladder is supplied by MITA and complements the other
cable support systems that we offer.
All galvanised ladders are supplied in 6m lengths and pregalvanised ladders in 4m or 6m lengths.
Wibe is one of Europe’s largest cable ladder brands and
offers the fastest installation system available.
Wibe Cable Ladders are based around a rapid fit system.
The unique coupling method avoids the need for flat
fishplates which require up to 32 nuts, bolts and washer sets
per coupling.
Instead of the usual 10-15 minutes time taken per ladder, the
Wibe coupler comes with 2 captive bolts and a complete
connection can be made in around 30 seconds.
Additionally, the WIBE pre-galvanised ladder offers impressive
materials cost savings for any internal applications and is
ideal for use in commercial buildings, hospitals, distribution
centres, shopping and retail applications.
30
Telephone: 01352 792301
Ref: MA\02\07\3
MITA
Units 1-2 Manor Industrial Estate
Bagillt
FLINT
CH6 5UY
Tel:
Fax:
01352 792301
01352 792314
Email: [email protected]
www.mita.co.uk