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Insulator Pin includes Small & Large Steel Head Pins, Large Steel Head as per B.S. 3288 Part 2, large or small heads specified in BS: 137 part2, and made of forged steel or heat treated malleable east iron.
All fittings for insulators are either made of forged steel or heat treated malleable east iron hot dip galvanised to BS: 729. Suspension and tension clamps are made of aluminium alloy from permanent mould process.
Insulator pins of this series have large or small heads specified in BS: 137 part2.
The pins are suitable for the pin type insulators.
These steel head pins can be used only for insulators with zinc thimbles.
The mechanical failing load of the pin is defined as the load at which the deflection of pin shall not exceed 20% of the distance from the support when the load is applied at right angle to a point 1 inch above the head of a rigidly mounted pin as shown here.
Small & Large Steel Head Pins:
For use on Insulators with Zinc Thimbles
Pin for Pin type Insulators (Large Steel Head) as per B.S. 3288 Part 2:
All dimensions are after hot dip galavanizing. Galvanizing test to conform to BS: 729
15% maximum deflection permissible at a minimum specified failing load.
Pin will be supplied with spring washer full nut & lock nut
Mass of zinc coating (MIN) 610 gm/m2 (85) Also pass 41 minute dip test)
|
Min. Failing Load
|
5 kN
|
10 kN
|
||||
|
Ref. Nos.
|
26
|
28
|
30
|
27
|
29
|
31
|
|
A
|
165
|
230
|
305
|
165
|
230
|
305
|
|
B min
|
37
|
40
|
43
|
43
|
50
|
63
|
|
C
|
24
|
24
|
24
|
24
|
25
|
27
|
|
D min
|
24
|
28
|
31
|
31
|
37
|
40
|
|
E
|
18
|
22
|
22
|
18
|
22
|
22
|
|
F
|
5
|
6
|
6
|
6
|
6
|
6
|
|
G
|
13
|
13
|
13
|
13
|
13
|
16
|
|
X*
|
50 or 130
|
50 or 130
|
50 or 130
|
50 or 130
|
50 or 130
|
50 or 130
|
Dimensions X tobe 50mm screwed 45 mm or 130mm screwed 75mm
Material: Mild steel, hot dip galavanised
Complete with spring washer & nut
Insulator Pin for 11kV / 22kV Pin Insulator:
|
Minimum Failing Load
|
Ref. No.
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
X
|
Y
|
|
|
11kV
|
540 kg
|
UTX-165 PIN
|
165
|
40
|
24
|
25
|
20
|
5
|
12
|
150/50
|
44
|
|
22kV
|
1080 kg
|
UTX-230 PIN
|
230
|
50
|
24
|
38
|
24
|
5
|
12
|
150/50
|
44
|
Weight per piece: 11kV = 0.800 kgs.
(Approx.) 22kV = 1.500 kgs.
Finish: Hot dip galvanised to BS 729
Minimum failing load: 540 kgs
Insulator Pin 33kV Material:
1. Galvanised M.S. round
2. Galvanised M.S. spring washer
3. Galvanised M.S. nut
|
33 kV PIN
|
|||
|
mm
|
1
|
2
|
3
|
|
A
|
305
|
305
|
30
|
|
B
|
146
|
51
|
150
|
|
C
|
451
|
356
|
450
|
|
C
|
50
|
50
|
50
|
|
E
|
44
|
40
|
44
|
|
F
|
65
|
55
|
67
|
|
G
|
76
|
44
|
50/150
|
|
H
|
24
|
24
|
24
|
Insulator Pin Forged (Hot dip galavanised) Large Steel Head Technical Data:
Finish: Hot dip galvanised to BS 729
1) HDG M.S. Round
2) HDG M.S. Spring Water
3) HDG M.S. Nut
Pilot Pin Material: Steel hot dip galvanised to BS: 729
|
Cat. Number
|
A
|
B
|
Type of Threads
|
Tested Load
|
|
UTX/PP/1
|
16"
|
6"
|
Small steel head
|
70 KGF
|
|
UTX/PP/2
|
16"
|
2"
|
Large steel head
|
70 KGF
|
|
UTX/PP/3
|
16"
|
6"
|
Large steel head
|
70 KGF
|
|
UTX/PP/4
|
16"
|
2"
|
Small steel head
|
70 KGF
|
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