CLAMPS ENQUIRY
Keyword:CLAMPS ENQUIRY Time:2020-4-8 10:28:52
LIST OF GOODS AND TECHNICAL SPECIFICATIONS
LOT NO. | DESCRIPTION | UNIT | QTY | US $/unit | DELIVERY | |
| Place | Period | ||||
1 | Strain Clamp Clevis Pistol (Gun) ACSR 100mm2 complete with three U-Bolts | Each | 3,000 | 4.8 | Bulk Stores, Lusaka. | 21 Days |
2 | Strain Clamp Clevis Pistol (Gun) ACSR 50mm2 complete with three U-Bolts | Each | 3,000 | 3.8 | ||
3 | Come – Along 50-150mm Grip Pull & Tension Unsheathed Wire Rope Cable & Metal Rods |
| 200 | 30 | ||
4 | Insulator Porcelain Reel 0.4kV |
| 10,000 | 0.38 | ||
As per detailed Specifications in Appendix I |
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APPENDIX I
LOT 1: STRAIN CLAMP CLEVIS PISTOL (GUN) ACSR 100MM2 C/W THREE U-BOLTS
SCHEDULE A: MINIMUM REQUIREMENTS
S/N | DETAILS | UNIT | DATA | ||
1. | Conductor Size | mm2 | 100 | ||
2. | Overall Dimensions. | mm | As per attached drawing: ZAM-GEN-DM-08-E-12093 | ||
3. | Material | Clamp: |
| Cast steel hot dip galvanised | |
Bolts: |
| Galvanised Steel | |||
4. | Corrosion specification |
| Hot dip galvanised as per SABS 763 | ||
5. | Minimum failing load | kN | 70 | ||
6. | Operating ambient temperature | °C | -1 to 40 | ||
7. | Relative Humidity | % | 85 | ||
8. | Altitude above sea level | m | 1400 | ||
9. | Applicable Standard |
| BS 3288, SABS 763 | ||
10. | Previous type test results/certificate to be provided with bid | Tensile tests, etc | Yes/No | Yes | |
11. | Drawing showing dimensions to be provided with bid | Yes/No | Yes | ||
12. | Quality assurance manuals / certificate to be provided with bid | Yes/No | Yes | ||
13. | Routine test results to be provided on delivery. | Yes/No | Yes |
DIMENSIONS (see drawing no. ZAM-GEN-DM-08-E-12093 below)
Clamp size | A (mm) | B (mm) | C | D (mm) | E (mm) | F (mm) |
100mm2 | 190 | 140 | U-bolt | 22 | 16 | 50 |
Drawing No: ZAM-GEN-DM-08-E-12093
Notes
a)The minimum failing load shall be indelibly marked on each Pistol clamp.
b)The system of dimensioning shall be as per BS 3288
c)The supplier should provide a test certificate for compliance to the minimum failing load
SCHEDULE B: TO BE COMPLETED BY SUPPLIER
S/N | DETAILS | UNITS | DATA | ||
1. | Conductor Size | mm2 | 100 | ||
2. | Overall Dimensions. | mm | As per attached drawing: ZAM-GEN-DM-08-E-12093 | ||
3. | Material | Clamp: |
| Cast steel hot dip galvanised | |
Bolts: |
| Galvanised Steel | |||
4. | Corrosion specification |
| Hot dip galvanised as per SABS 763 | ||
5. | Minimum failing load | kN | 70 | ||
6. | Operating ambient temperature | °C | -1 to 40 | ||
7. | Relative Humidity | % | 85 | ||
8. | Altitude above sea level | m | 1400 | ||
9. | Applicable Standard |
| BS 3288, SABS 763 | ||
10 | Previous type test results / certificate | Tensile tests, etc | Yes/No | Yes | |
11. | Drawing showing dimensions provided with bid | | Yes | ||
12. | Quality assurance manuals / certificate provided with bid | Yes/No | Yes | ||
13. | Routine test results to be provided on delivery. | Yes/No | Yes |
NOTE:
SUPPLIERS SHOULD CLEARLY SPECIFY WHAT THEY ARE OFFERING IN THEIR RESPONSE IN SCHEDULE B. SUPPLIERS WHO WRITE “COMPLY” or “COMPLIED” IN THEIR RESPONSE WILL BE CONSIDERED TO BE NON-RESPONSIVE.
LOT 2: STRAIN CLAMP CLEVIS PISTOL (GUN) ACSR 50 MM2 C/W THREE U- BOLTS
SCHEDULE A: MINIMUM REQUIREMENTS
S/N | DETAILS | UNITS | DATA | |
1. | Conductor Size | mm2 | 50 | |
2. | Overall Dimensions. | mm | As per attached drawing ZAM-GEN-DM-08-E-12093 | |
3. | Material | Clamp: |
| Cast steel hot dip galvanised |
Bolts: |
| Galvanised Steel | ||
4. | Corrosion specification |
| Hot dip galvanised as per SABS 763 | |
5. | Minimum failing load | kN | 70 | |
6. | Operating ambient temperature | °C | -1 to 40 | |
7. | Relative Humidity | % | 85 | |
8. | Altitude above sea level | m | 1400 | |
9. | Applicable Standard |
| BS 3288, SABS 763 | |
10. | Previous type test | Tensile tests, etc | Yes/No | Yes |
11. | Drawing showing dimensions to be provided with bid | | | |
12. | Quality assurance manuals / certificate to be provided with bid | Yes/No | Yes | |
13. | Routine test results to be provided on delivery. | Yes/No | Yes |
DIMENSIONS (see drawing no. ZAM-GEN-DM-08-E-12093 below)
Clamp size | A (mm) | B(mm) | C | D (mm) | E (mm) | F (mm) |
50mm2 | 175 | 110 | U-bolt | 18 | 16 | 50 |
Drawing No: ZAM-GEN-DM-08-E-12093
Notes
a) The minimum failing load shall be indelibly marked on each Pistol clamp.
b)The system of dimensioning shall be as per BS 3288
c)The supplier should provide a test certificate for compliance to the minimum failing load
SCHEDULE B: TO BE COMPLETED BY SUPPLIER
S/N | DETAILS | UNITS | DATA | ||
1. | Conductor Size | mm2 | 50 | ||
2. | Overall Dimensions. | mm | As per attached drawing ZAM-GEN-DM-08-E-12093 | ||
3. | Material | Clamp: |
| Cast steel hot dip galvanised | |
Bolts: |
| Galvanised Steel | |||
4. | Corrosion specification |
| Hot dip galvanised as per SABS 763 | ||
5. | Minimum failing load | kN | 70 | ||
6. | Operating ambient temperature | °C | -1 to 40 | ||
7. | Relative Humidity | % | 85 | ||
8. | Altitude above sea level | m | 1400 | ||
9. | Applicable Standard |
| BS 3288, SABS 763 | ||
10. | Previous type test results/certificate | Tensile tests, etc | Yes/No | Yes | |
11. | Drawing showing dimensions provided with bid | | Yes | ||
12. | Quality assurance manuals/ certificate provided with bid | Yes/No | Yes | ||
13. | Routine test results to be provided on delivery. | Yes/No | Yes |
NOTE:
SUPPLIERS SHOULD CLEARLY SPECIFY WHAT THEY ARE OFFERING IN THEIR RESPONSE IN SCHEDULE B. SUPPLIERS WHO WRITE “COMPLY” or “COMPLIED” IN THEIR RESPONSE WILL BE CONSIDERED TO BE NON-RESPONSIVE.
LOT 3: COME ALONG 50-150MM GRIP PULL & TENSION UNSHEATHED WIRE ROPE CABLE & METAL RODS
SCHEDULE A: MINIMUM TECHNICAL REQUIREMENTS
S/N | DETAIL | UNIT | DATA |
1 | Description |
| Come along suitable for gripping ACSR conductor and metal rods |
2 | Type of wire grip |
| Aluminum alloy wire grip |
3 | Material of clamp |
| High strength aluminum alloy |
4 | Minimum breaking load | kN | 70 |
5 | Conductor cross section range | mm2 | From 50 to 150 mm2 |
6 | Maximum weight of grip | Kg | 1.7 |
7 | Operating ambient temperature | o | -1 to 40 |
8 | Altitude | m | 1400 |
9 | Relative humidity | % | 85 |
10 | Quality assurance certification to be provided with bid | Yes/No | Yes |
11 | Routine Tests results to be provided on delivery | Yes/No | Yes |
12 | Drawings and brochures to be provided with bid | Yes/No | Yes |
SCHEDULE B: TO BE FILLED IN BY THE BIDDER
S/N | DETAIL | UNIT | DATA |
1 | Description |
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2 | Type of wire grip |
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3 | Material of clamp |
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4 | Minimum breaking load | kN |
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5 | Conductor cross section range | mm2 |
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6 | Maximum weight of grip | Kg |
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7 | Operating ambient temperature | oC |
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8 | Altitude | m |
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9 | Relative humidity | % |
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10 | Quality assurance certification provided with bid | Yes/No |
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11 | Routine Tests results to be provided on delivery | Yes/No |
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12 | Drawings and brochures provided with bid | Yes/No |
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LOT 4: INSULATOR PORCELAIN REEL
SCHEDULE A: MINIMUM REQUIREMENTS
S/N | DESCRIPTION | UNIT | DATA |
1. | Nominal Voltage | kV | 0.4 |
2. | Highest System Voltage | kV | 0.44 |
3. | Leakage Distance | mm | 66 |
4. | Power Frequency withstand voltage Wet | kV | 12 |
5. | Dry | kV | 25 |
6. | Mechanical Strength (transverse) | kN | 15 |
7. | Altitude above sea level |
| 1400 |
8. | Operating temperature | oC | -1 to 40 |
9. | Relative humidity (Minimum) | % | 85 |
10. | Net weight (Approximate) | kg | 0.5 |
11. | Porosity |
| NIL |
12. | Previous type test certificate/results to beprovided with the bid | Yes/No | Yes |
13. | Routine test certificate to be provided on delivery of insulators | Yes/No | Yes |
14. | Manufacturers quality manual /ISO 9000 Certification to be provided with the bid | Yes/No | Yes |
15. | Drawings showing dimensions and tolerances of Insulators offered to be provided with the bid. | Yes/No | Yes |
16. | Applicable Standard |
| SABS 161 |
Dimensions and Dimensional Tolerances
Specifications | A | B | D | d | R |
Nominal | 75 | 65 | 42 | 17 | 15 |
Minimum | 74.1 | 64.1 | 39.6 | 17.0 | 14.9 |
Maximum | 78.2 | 68.2 | 42.9 | 19.0 | 16.7 |
OTHER REQUIREMENTS
Markings
a) Insulators shall be marked with the specified Electro-mechanical or mechanical failing load e.g. U70 BL.
b) Insulators shall have indelible manufacturer’s trade mark and date of manufacture.
Special clause:
a) Bidders may submit alternative offers, which may be of financial or technical benefit to Z** Ltd.
b) Definitions and extra explanations on requirements are outlined in Annex A
c) SCHEDULE B: TO BE COMPLETED BY BIDDER
S/N | DESCRIPTION | UNIT | DATA |
1. | Nominal Voltage | kV |
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2. | Highest System Voltage | kV |
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3. | Leakage Distance | mm |
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4. | Power Frequency withstand voltage Wet | |
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5. | Dry | kV |
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6. | Mechanical Strength (transverse) | kN |
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7. | Altitude above sea level |
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8. | Operating temperature | oC |
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9. | Relative humidity (Maximum) | % |
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10. | Net weight (Approximate) | kg |
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11. | Porosity |
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12. | Previous type test certificate/results to beprovided with the bid | Yes/No |
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13. | Routine test certificate to be provided on delivery of insulators | Yes/No |
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14. | Manufacturers quality manual /ISO 9000 Certification to be provided with the bid | Yes/No |
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15. | Drawings showing dimensions and tolerances of Insulators offered to be provided with the bid. | Yes/No |
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16. | Applicable Standard |
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SCHEDULE B: TO BE COMPLETED BY BIDDER
SPECIFICATIONS | UNIT | A | B | D | d | R |
Nominal | mm |
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Tolerance | ±mm |
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ANNEX A
1.0 DEFINITIONS
Crazing: Cracks in the glaze of an insulator
Dunt: A fracture extending through the body, or the body and the glaze, caused by strains set up in the process of manufacture.
Speck: A discoloured portion having a dimension larger than 0.062 inches
(1.575 mm)
MANUFACTURING DETAILS MINIMUM REQUIREMENTS
a) BISCUIT FIRING TEMPERATURES: 1050 °C
b) KILN FIRING TEMPERATURES: 1250 °C
c) SAMPLE SIZE TO BE TESTED 10 %
BODY PREPARATION
Manufacturers must ensure that the Entropy of mixing is achieved in order to ensure all the constant materials making the body are properly mixed
MATERIAL
The porcelain shall be sound, thoroughly vitrified, smoothly glazed and shall be free from dunts, projections and exposed body. There shall be not more than five specks on the insulator. The glazing shall not be relied upon for the insulating properties of the insulator.
GLAZING
The glaze, which shall show no signs of crazing, shall be leadless and shall cover the insulator entirely except for kiln support marks, screw threads.
MECHANICAL DESIGN
The design shall be such that stresses due to expansion and contraction in any part of the insulator do not lead to deterioration.