This standard specifies the specifications, materials, technical requirements, test methods and inspection rules for insulated pulleys for live working. This standard applies to insulated pulleys for live working on high voltage electrical equipment. GB 13034-1991 Insulated pulleys for live working GB13034-1991 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Insulated pulleys for live working
Insulated pulleys for live working1 Subject content and scope of application
GB13034---91
This standard specifies the requirements for live working Variety specifications, materials, technical requirements, test methods and inspection rules of insulating pulleys for work. This standard applies to insulating pulleys used for live work on high-voltage electrical equipment. 2 Reference standards
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ZBJ80009
3 varieties and specifications
3.1 model specifications
3.1. 1. Insulation pulleys are divided into fifteen types. The types are shown in Table 1. The structure and main dimensions are shown in Figures 1 to 9. Continued Table 1
Type
JH5-1B
JH5-1K
JH5-2D
JH5-2X
JH5-2J| |tt||JH5-3D
JH5-3X
JH10-2D
JH10-2C
JH10-3D
No.
Name
Single wheel closed type insulating pulley
Single wheel open type insulating pulley
Double wheel short hook type insulating pulley
Double wheel wire hook type insulating pulley||tt ||Two-wheel insulated hook type insulating pulley
Three-wheel short hook type insulating pulley
Three-wheel wire hook type insulating pulley
Two-wheel short hook type insulating pulley
Two-wheel long hook type insulating pulley
Three-wheel short hook type insulating pulley
Approved by the State Bureau of Technical Supervision on 1991-07-15
Rated load, kN
5
5
5
5
5
5
5
10
10|| tt||10
number of pulleys
1
2
2
2
3
3|| tt||2
2
3
1992-04-01 Implementation
Model
JH10-3C
JH15-4D| |tt||JH15-4C
JH20-4D
JH20-4C
GB13034—91
Continued Table 1
Name. Weigh
Three-wheel long hook type insulating pulley
Four-wheel short hook type insulating pulley
Four-wheel long hook type insulating pulley
Four-wheel short hook type insulating pulley| |tt||Four-wheel long hook type insulated pulley
Rated load, kN
10
15
15
20
20
Note: The rated load refers to the hook load. When a single-wheel pulley is used as a guide wheel, the traction force of a single rope is one-half of the rated load. 3:1.2 The model is compiled using the first letter of Chinese Pinyin and Arabic numerals. 8.
JH represents the insulating pulley;
The number after JH represents the rated load;
b .
c.
The number after the dash indicates the number of pulleys; the last letter indicates the structural features.
d.
B—Closed side panel type
K—Open side panel type
D-Short hook type
c—Long hook type
J—insulation hook type
||4
3
GB13034—91
5
Figure 1JH5-1B pulley structure diagram
1 baffle; 2—pulley; 3- -Bearing; 4-- central shaft; 5 pull plate; 6 - hanging shaft; 7 - hook
2
GB13034—91
Figure 2JH5-1K pulley structure diagram|| tt||1-fixed pin; 2 movable pull plate 3-hook; 4 hanging wheel; 5-partition plate; 6-pulley; 7-center shaft; 8-bearing; 9-fixed pull plate 181||tt| |20
090
G
Figure 3
GB13034—91
JH5-2D
type pulley structure diagram||tt| |JH5-2X
1-tail rope ring; 2-coupling shaft; 3-pull plate; 4-partition plate; 5-central shaft; 6-bearing; 7-pulley; 8 hanging shaft; 9 hanging beam 10—Hook 18
20
GB 13034—91
0
a
881
Figure 4JH5-2J type pulley structure Figure
1-Partition; 2-Platform; 3-Connecting shaft; 4-Pulley; 5-Middle shaft; 6-Bearing; 7-Hanging shaft; 8-Hook
70| |tt||099
Figure 5
GB13034—91
public
JH5-3Dwww.bzxz.net
type pulley structure diagram
JH5- 3X
1-tail rope ring; 2-coupling shaft; 3-pull plate; 4-partition plate; 5-central shaft; 6-bearing; 7-pulley; 8-suspended wheel; 9-suspended beam ;10-Hook 10
5
Figure 6
GB13034--91
JH10-2C
type pulley structure diagram
JH10-2D
1 tail rope ring; 2-coupling shaft; 3 pulley; 4-center shaft; 5-bearing; 6 pull plate; 7-hanging shaft; 8-partition plate; 9 hanging beam; 10- Lifting ring; 11-hook 10
107
Figure 7
GB13034-91
JH10-3C
type pulley structure diagram
JH10-3D
1-rope tail ring; 2-coupling shaft; 3-pull plate; 4-partition plate; 5-central shaft; 6-bearing; 7-pulley; 8 hanging shaft; 9-hanging beam ;10-suspended ring; 11-hook
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