|
|
| Product |
Households with high-pressure power plant with the pillars of porcelain insulator
The use of standard: GB 8287.1 ~ 2
-------------------------------------------------- ------------------------------
First, use of sub-elimination, model Introduction
Pillars of indoor rated voltage insulators for indoor 6 ~ 35kV power plants, substations and electrical equipment, power distribution devices for insulation and fixed part conductive.
Insulators apply for ambient temperature -40 ~ +40 ℃, altitude locations no more than ordinary 1000m, plateau 4000m.
Insulators from porcelain pieces and the upper and lower metal Annex loaded with glue from glue. End pieces of porcelain and metal parts of the annex to contact pad mounted plastic flexible liner, porcelain pieces of plastic were used on equipment parts sand, rolling flower, Trench structure in order to ensure mechanical strength and prevent loosening, reverse painted porcelain white uniform surface glaze, metallic gray enamel surface annex.
Insulator structure by binding outside the binding, with binding and binding of three joint structure.
Model Description
Z -outdoorbinding post insulator, followed by the letters A, B, C, D, said mechanical damage (bending) load, respectively
3.75,7.5,12.5,20 kN; dash behind the figures for the rated voltage (kN), then Y-circular letters
Base, T-elliptic base, F-square base.
ZN-indoor pillars fitted with plastic insulators; ZL-indoor binding post insulator joint;
Score dash behind: elements for the rated voltage (kV), the denominator for the mechanical damage (bending) load (kN),
Then glue the letters N-in be installed on all single screw under the Annex; Y-joint binding annex to the next round; G-plateau type.
Second, the indoor electrical properties of post insulator
Insulator rated
Voltage kV
Maximum insulator
Voltage kV
KV rms AC voltage not less than the standard Lightning Impulse kV peak voltage tolerance is not less than
lmin
Dry Tolerance
lmin *
Wet tolerance
Breakdown **
6 6.9 32 23 56 60
10 11.5 42 30 74 75
15 17.5 57 40 100 105
20 23 68 50 119 125
35 40.5 100 80 175 185
* Frequency wet test is required only when users
** Frequency breakdown voltage test only for B-type insulators
Third, household size of the pillars of the main insulator
1, binding post insulatoroutdoormain structure of the size chart
2, the indoor binding within the main structure of the pillar insulator size chart
3, indoor insulator main pillars of the joint glue size chart
|
|
