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/ Product Catalogue / Linear fitting to the lines of electric transmission / Ears
Ears
Ears(lugs) are designed to connect the rod suspension( hangers ) insulator, or other linear earrings ( lugging ) with steel reinforcement (fixtures ). Spherical socket swivel lugs in accordance with GOST 27396-93 is performed. The coupled time action ( dimensions ) lugs must comply with the requirements of GOST 11359-75. Eyelets (junction socket hole (lug) ) for air overhead line of electricity transmission give issued the following types:
U – ears (lugs) shortened
U1 – oneclawed (onearme) (valved) (junction socket (hole) lug) ears;
U1K –oneclawed (valved) (junction socket (hole) lug) ears cropped;
U2 – doubledclawed (valved) ( junction socket (hole) lug) ears;
U2K – doubledclawed (valved) (junction socket (hole) lug) ears cropped;
US - ears (lugs) with a special curved finger(pin);
USK - ears shortened with a special bent finger(pin).
For locking the rod bushing and pestle in a nest earrings ears (lugs)supplied with W-shaped locks. Ears correspond TUU 3400130441.006-95
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Ear type U
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Ear type U1 (U1-7/12-16)
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Ears cropped type U intended to support the acquisition of short suspension lines 330 and 500 kV without protective rings.
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Ear type
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Failure load, kN, not less
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Weight, kg
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D
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А
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А1
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Н
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U-7-16
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20
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38
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19,2
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42
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70
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1,05
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U-12-16
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20
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32
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19,2
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42
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120
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1,3
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U-16-20
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28
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47
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23
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48
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160
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2,3
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U-21-20
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28
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47
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23
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48
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210
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2,66
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U-30-24
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36
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47
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27,5
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67
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300
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5,74
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Ears U1 designed to connect the rod suspension insulators or earrings with another linear valves.
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Ear type
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Failure load, kN, not less
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Weight, kg
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D
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b
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В1
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В2
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D1
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Н
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H1
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U1-7-16
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17
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16
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52
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58
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19,2
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96,5
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123
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70
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0,67
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U1-12-16
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23
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22
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56
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62
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19,2
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102,5
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140
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120
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1,05
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Ear type U1 (U1-16/21-20, U1-30-24, U1-40-28)
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Ear type U1 and U1К (U1-4-11, U1К-7-16)
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Ears are designed to connect the rod suspension insulators or earrings with another linear valves.
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Ear type
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Dimensions, mm
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Failure load, kN, not less
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Weight, kg
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D
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b
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В1
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B2
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D1
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H
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Н1
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U1-16-20
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26
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25
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66
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75
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23
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114
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152
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160
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1,6
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U1-21-20
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29
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28
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72
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78
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23
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131
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173
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210
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2,24
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U1-30-24
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38
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36
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94
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94
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27,5
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150
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205,5
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300
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5,04
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U1-40-28
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42
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40
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112
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112
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32
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190
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225
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400
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8,15
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Ears types U1 and U1K designed to connect the rod suspension insulators or earrings with another linear valves .
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Ear type
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Failure load, kN, not less
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Weight, kg
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D
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b
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B1
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B2
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D1
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H
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H1
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U1-4-11
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15
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14
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38
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40
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12,5
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80,5
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90
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40
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0,53
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U1К-7-16
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17
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16
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52
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58
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19,2
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77
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104,5
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70
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0,62
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| Ear type U1-4/7-11/16 |
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Ear type U-40 |
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Ear transition designed to connect the rod suspension insulators or earrings with another linear valves.
Failure load- 40 кN.
Weight - 0,29 кg.
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Ears are designed to connect suspended prison or earrings with another linear valves. Jack swivel lugs for connection rod runs and earrings.
Mating dimensions eyes meet the requirements of GOST 11359-75.
Failure load - 35 кN.
Weight -0,15 кg.
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Ear type U2-7-16, U2-12-16
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Ear type U2 (U2-16-20, U2-21-20, U2-30-24)
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Ears are designed to connect the rod suspension insulators or earrings with another linear valves.
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Ear type
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Failure load, kN, not less
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Weight, кg
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d
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В
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В2
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D1
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H
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Н1
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U2-7-16
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16
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17
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58
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19,2
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93,5
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123
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160
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2,17
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U2-12-16
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22
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23
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62
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19,2
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102,5
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140
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120
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1,52
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Ears are designed to connect the rod suspension insulators or earrings with another linear valves.
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Ear type
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Failure load, kN, not less
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Weight, кg
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d
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В
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В2
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D1
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H
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Н1
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U2-16-20
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25
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26
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75
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23
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114
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152
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160
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2,17
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U2-21-20
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28
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29
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78
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23
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131
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174
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210
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3,56
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U2-30-24
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36
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38
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94
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27,5
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150
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205,5
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300
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6,43
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| Ear type U2К-7-16 |
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Ear type US |
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Ears are designed to connect the rod suspension insulators or earrings with another linear valves.
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Failure load, kN, not less
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Weight, кg
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d
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В
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В2
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D1
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H
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H1
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U2К-7-16
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16
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17
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58
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19,2
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77
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105
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70
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0,75
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Ears are specially designed for the connection of the rod suspension insulators or earrings with another linear valves.
Lugs provide swivel chain-type staple SC or arch supports suspension clamp.
Ears are on the middle edge fixing lugs shielding and discharge horn.
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Ear type
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Failure load, kN, not less
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d
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d1
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D1
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B1 |
В2
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H
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H1
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US-7-16
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18
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25
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19,2
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110
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58
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104
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131
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70
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1,25
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US-12-16
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25
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25
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19,2
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122
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60
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113
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151
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120
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2
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| Ear type US |
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Ear type USK |
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Ears are specially designed for the connection of the rod suspension insulators or earrings with another linear valves.
Ears are bent finger, thus providing swivel chain-type staple SK or arch supports suspension clamp. Ears are on the middle edge holes for protective screens and discharge horn.
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Ear type
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Failure load, kN, not less
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d
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d1
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D1
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B1
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B2
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Н
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H1
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US-16-20
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28
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35
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23
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146
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72
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132
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172
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160
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2,9
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US-21-20
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28
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35
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23
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168
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79
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145
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185
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210
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4,71
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US-30-24
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36
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35
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27,5
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198
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94
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164
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215
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300
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7,5
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US-40-28
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42
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40
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32
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228
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112
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200
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255
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400
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12,5
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Special cropped ears are designed to connect the rod suspension insulators or earrings with another linear valves.
Ears are bent finger, thus providing swivel chain-type staple SK or arch supports suspension clamp. USK ears are not designed to mount them shielding and discharge horn.
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Ear type
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Failure load, kN, not less
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d
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d1
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D
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В1
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B2
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Н
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H1
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USK-7-16
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18
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25
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19,2
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110
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52
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67
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95
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70
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1,2
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USK-12-16
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25
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32
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19,2
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125
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60
|
78
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112
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120
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2,1
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USK-16-20
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28
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35
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23
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142
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70
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90
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130
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160
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3,3
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USK-21-20
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28
|
35
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23
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163
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79
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90
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125
|
210
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4,17
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USK-30-24
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36
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35
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27,5
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198
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94
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100
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150
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300
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7,4
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USK-40-28
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42
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40
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32
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228
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112
|
127
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179
|
400
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11,3
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