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33 Kv Switch Disconnectors Gang Insulator
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33 Kv Switch Disconnectors Gang Insulator

Quantity:
  • RH-B 36
  • Three-column Disconnector
  • Manual
  • Horizontal Rotary Type
  • Single Ground
  • Turn the Horizontal
  • Manual
  • Oei Power
  • IEC62271-102
  • 8535309000
  • High-voltage
  • Outdoor High-voltage
  • Grounding
  • Three Pole
  • Three
  • Ist
  • IEC IEEE
  • OEIpower
  • China Nanyang

Product Description


The following documents were referred to during the preparation of this specification. In case of conflict, the provisions of this specification shall take precedence.
IEC 129:1975: Alternating Current Disconnectors (Isolators) and Earthing Switches
IEC 60694:2002: Common Specifications for High Voltage Switchgear and Controlgear
BS 729: Hot dip galvanized coating on iron and steel articles
IEC62271-102
Isolator (Disconnector) - a mechanical switching device which provides, in the open position, an isolating distance in accordance with Electrical Safety requirements.

SERVICE CONDITIONS
The isolator shall be suitable for continuous operation outdoors in tropical areas at altitudes of up to 2200m above sea level, humidities of up to 90%, average ambient temperature of +30ºC with a minimum of -1ºC and a maximum of +40ºC and heavy saline conditions along the coast.

4.2. DESIGN AND CONSTRUCTION
4.2.1 The Isolator, Solid Link shall be designed and constructed in accordance with IEC 129 and IEC 60694.
4.2.2 The isolating link shall be of the vertical opening, designed for single phase manual operation. It shall be easily removed and replaced by using a portable operating rod.
4.2.3 The isolating link shall incorporate double porcelain insulators to suit voltage requirements and mounted on hot dipped galvanised steel under base suitable for vertical mounting.
4.2.4 The isolating link shall be arranged so that each unit is mounted independently on an angle bracket. It shall be supplied complete with the angle bracket and accessories suitable for mounting on 'U' type steel channel. The drawings to be submitted shall indicate all the applicable mounting positions.
4.2.5 The isolator shall be designed such that in fully open position, it shall provide adequate electrical isolation between the contacts on each phase. It shall conform to the requirement as single point isolation for safety.
4.2.6 All steel parts shall be hot dip galvanized to BS 729. The minimum coating of galvanizing required is 80 microns.
4.2.7 The solid link shall be removable from the mounting by use of operating rod.
4.2.8 All current carrying parts of the isolator shall be made of high conductivity material.
4.2.9 The isolator shall be fitted with clamp connectors for Aluminium (ACSR) conductor of Aluminium (ACSR)conductor of up to 18.2mm diameter.

The rating of the complete isolator shall be as follows: -
Rated voltage
36 kV
Rated frequency
50 Hz
Rated lightning impulse withstand voltage
200 kV
Rated power frequency withstand voltage, dry
95 kV
Rated normal current
400 Amps
Rated short time withstand current for 3 sec, min.
18.0 kA
Minimum creepage distance of insulators
900 mm
 
 SOLID LINKS 11KV
 
 
 
 
 
N/O DETAIL
DATA
1 Description
Solid link assembly complete with link
rated at 200A and mounting bracket to PIESA 002. (See Figure 1  to Figure 12 below)
2 System conditions of service
 
 
 
a) nominal Voltage (Un) r.m.s
 
 
 
 
kV
 
 
 
 
11
b) maximum system voltage (Um) r.m.s KV 12
c) earthing
Effective & non effective
d) Frequency Hz 50
3 Site conditions of service
a) altitude
 
m
 
1400
b) Operating Ambient temperature °C -1 to 40
c) Humidity % 85
4 Rating

a) Nominal voltage kV 11
b) Rated current Solid link  
A
 
200
 
Cut out base
 
A
 
200
5 Electrical components

a) Insulator material specification
Porcelain
Dielectric strength

Lightning  impulse withstand (1.2/50) kV 95
Power frequency wet withstand voltage
r.m.s
kV 28
6 Specific creepage distance mm/kV 25



 
 
7 General information to be provided
with bid:
Drawings and brochures showing outline and general arrangement
 
 
 
 
Yes/No
 
 
 
 
Yes

b) Detailed drawings of all items
showing critical tolerances to be provided with bid
Yes/No Yes
8 Previous Type test report/certificate on
complete solid link assembly to be provided with bid
 
Yes/No
 
Yes
10 Routine tests (acceptance tests on
sample
Product) to be provided on delivery
Yes/No Yes
11 Applicable standard
PIESA 002
12 Other applicable standards
NRS 035
SABS IEC 60282-2
SABS IEC 60186
BS 137 part 2


 
 


TRI-LINKS
 
 
 
Lot 3-(a) 11kV with interrupters
 
 
 
N/O DETAIL
DATA
1 TYPE
11kV pre-assembled gang
operated overhead line load break switch complete with expulsion interrupters
2 Mounting configuration
Horizontal
3 Mode of operation
Manually operated pole
mounted linking rod and handle with locking facilities

a) nominal Voltage (Un) r.m.s kV 11
b) maximum voltage (Um) r.m.s KV 12
c) earthing
Effective & non effective
d) Frequency Hz 50
e) rated current Amp 400
f) Fault closing capacity kA 12.5
4 Site conditions of service
a) altitude
 
metres
 
1400
b) Operating Ambient temperature  
°C
 
-1 to +40
c) Relative humidity % 85
5 Electrical components

a) Insulator material specification
High Temperature Vulcanised
Silicon rubber
b) Cross arm and operating controls materials
Hot dip galvanized steel to
SAN760
Dielectric strength

Lightning  impulse withstand (1.2/50) kV 95



 
 

Power frequency wet withstand voltage r.m.s KV 28

Short time current rating -1sec kA 12.5
6 creepage distance mm/kV 25
7 General information to be provided with bid:
Drawings and brochures showing
Outline and general arrangement
 
 
 
Yes/No
 
 
 
Yes
8 Previous Type test report/certificate on complete
assembly to be provided with bid
Yes/No Yes.
9 Routine tests (acceptance tests on sample
 
Product) to be provided on delivery.
Yes/No Yes
10 Applicable standards
IEC62271


 
 
FURTHER REQUIREMENTS:
 
Water shall not be able to accumulate on any part of the equipment nor shall any feature introduce moisture into any component.
The design shall incorporate all reasonable precautions and provisions for the safety of personnel concerned with the operation and maintenance of the same.
The current path shall be such that load current shall only flow through high conductive materials such as copper and its alloys. Load current shall not be permitted to flow through ferrous components, springs, or spring-loaded mechanisms.
All load current paths shall be so designed that the relevant parts of the switch are capable of carrying the specified rated current without exceeding the permitted temperature rise.
 
 
 
SUPPLIMENTARY NOTES
 
Suppliers should give sufficient information including drawings (which must be brief, clear and to the point) on how their switch designs addresses these requirements. Further, Suppliers may offer better alternatives that are of cost benefits to customer, It is therefore imperative that schedule "B" is completed by the tenderer. Any deviations/modifications/alternatives specification must be listed in schedule "C.
 
 

 
 
 
 
33kV with interrupters
 
 
 
N/O DETAIL
DATA
1 TYPE
33kV pre-assembled gang
operated overhead line load break switch complete with expulsion interrupters
2 Mounting configuration
Horizontal
3 Mode of operation
Manually operated pole
mounted linking rod and handle with locking facilities

a) nominal Voltage (Un) r.m.s kV 33
b) maximum voltage (Um) r.m.s KV 36
c) earthing
Effective & non effective
d) Frequency Hz 50
e) rated current Amp 200
f) Fault closing capacity kA 12.5
4 Site conditions of service
a) altitude
 
metres
 
1400
b) Operating Ambient temperature  
°C
 
-1 to +40
c) Relative humidity % 85
5 Electrical components

a) Insulator material specification
High Temperature Vulcanised
Silicon rubber
b) Cross arm and operating controls materials
Hot dip galvanized steel to
SAN760
Dielectric strength

Lightning  impulse withstand (1.2/50) kV 170
Power frequency wet withstand voltage r.m.s KV 70

Short time current rating -1sec kA 12.5
6 creepage distance mm/kV 25
7 General information to be provided with bid:




 
 

Drawings and brochures showing
Outline and general arrangement
 
Yes/No
 
Yes
8 Previous Type test report/certificate on complete
assembly to be provided with bid
Yes/No Yes
9 Routine tests (acceptance tests on sample
 
Product) to be provided on delivery
Yes/No Yes
10 Applicable standards
IEC62271


 
 
FURTHER REQUIREMENTS:
 
Water shall not be able to accumulate on any part of the equipment nor shall any feature introduce moisture into any component.
The design shall incorporate all reasonable precautions and provisions for the safety of personnel concerned with the operation and maintenance of the same.
The current path shall be such that load current shall only flow through high conductive materials such as copper and its alloys. Load current shall not be permitted to flow through ferrous components, springs, or spring-loaded mechanisms.
All load current paths shall be so designed that the relevant parts of the switch are capable of carrying the specified rated current without exceeding the permitted temperature rise.
 
 
 
SUPPLIMENTARY NOTES
 
Suppliers should give sufficient information including drawings (which must be brief, clear and to the point) on how their switch designs addresses these requirements. Further, Suppliers may offer better alternatives that are of cost benefits to custoemr.
 
 
 

 
 
 
 
11kV without interrupters
 
 
 
 
N/O DETAIL
DATA
1 TYPE
11kV pre-assembled gang
operated overhead line switch without expulsion interrupters (non-load break switch)
2 Mounting configuration
Horizontal
3 Mode of operation
Manually operated pole
mounted linking rod and handle with locking facilities

a) nominal Voltage (Un) r.m.s kV 11
b) maximum voltage (Um) r.m.s KV 12
c) earthing
Effective & non effective
d) Frequency Hz 50
e) rated current Amp 400
4 Site conditions of service
a) altitude
 
metres
 
1400
b) Operating Ambient temperature  
°C
 
-1 to +40
c) Relative humidity % 85
5 Electrical components

a) Insulator material specification
High Temperature Vulcanised
Silicon rubber
b) Cross arm and operating controls materials
Hot dip galvanized steel to
SAN760
Dielectric strength

Lightning  impulse withstand (1.2/50) kV 95
Power frequency wet withstand voltage r.m.s KV 28

Short time current rating -1sec kA 12.5
6 creepage distance mm/kV 25
7 General information to be provided with bid:




 
 

Drawing and brochures showing
Outline and general arrangement
 
Yes/No
 
Yes
8 Previous Type test report/certificate on complete
assembly to be provided with bid
Yes/No Yes
9 Routine tests (acceptance tests on sample
 
Product) to be provided on delivery
Yes/No Yes
10 Applicable standards
IEC62271


 
 
FURTHER REQUIREMENTS:
 
Water shall not be able to accumulate on any part of the equipment nor shall any feature introduce moisture into any component.
The design shall incorporate all reasonable precautions and provisions for the safety of personnel concerned with the operation and maintenance of the same.
The current path shall be such that load current shall only flow through high conductive materials such as copper and its alloys. Load current shall not be permitted to flow through ferrous components, springs, or spring-loaded mechanisms.
All load current paths shall be so designed that the relevant parts of the switch are capable of carrying the specified rated current without exceeding the permitted temperature rise.
 
 
 
SUPPLIMENTARY NOTES
 
Suppliers should give sufficient information including drawings (which must be brief, clear and to the point) on how their switch designs addresses these requirements. Further, Suppliers may offer better alternatives that are of cost benefits to
 

 
 
 
 
 
33kV without interrupters
 
 
N/O DETAIL
DATA
1 TYPE
33kV pre-assembled gang
operated overhead line switch without expulsion interrupters (non-load break switch)
2 Mounting configuration
Horizontal
3 Mode of operation
Manually operated pole
mounted linking rod and handle with locking facilities

a) nominal Voltage (Un) r.m.s kV 33
b) maximum voltage (Um) r.m.s KV 36
c) earthing
Effective & non effective
d) Frequency Hz 50
e) rated current Amp 200
4 Site conditions of service
a) altitude
 
metres
 
1400
b) Operating Ambient temperature  
°C
 
-1 to +40
c) Relative humidity % 85
5 Electrical components

a) Insulator material specification
High Temperature Vulcanised
Silicon rubber
b) Cross arm and operating controls materials
Hot dip galvanized steel to
SAN760
Dielectric strength

Lightning  impulse withstand (1.2/50) kV 170
Power frequency wet withstand voltage r.m.s KV 70

Short time current rating -1sec kA 12.5
6 creepage distance mm/kV 25
7 General information to be provided with bid:




 
 

Drawing and brochures showing
Outline and general arrangement
 
Yes/No
 
Yes
8 Previous Type test report/certificate on complete
assembly to be provided with bid
Yes/No Yes
9 Routine tests (acceptance tests on sample
 
Product) to be provided on delivery
Yes/No Yes
10 Applicable standards
IEC62271


 
 
FURTHER REQUIREMENTS:
 
Water shall not be able to accumulate on any part of the equipment nor shall any feature introduce moisture into any component.
The design shall incorporate all reasonable precautions and provisions for the safety of personnel concerned with the operation and maintenance of the same.
The current path shall be such that load current shall only flow through high conductive materials such as copper and its alloys. Load current shall not be permitted to flow through ferrous components, springs, or spring-loaded mechanisms.
All load current paths shall be so designed that the relevant parts of the switch are capable of carrying the specified rated current without exceeding the permitted temperature rise.
 
 
 
SUPPLIMENTARY NOTES
 
Suppliers should give sufficient information including drawings (which must be brief, clear and to the point) on how their switch designs addresses these requirements. Further, Suppliers may offer better alternatives that are of cost benefits to.
 
 
 
ORIENT ELECTRIC
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