Insulation Piercing Clamp 25-75sqmm

3.1   Insulation Piercing Connectors (Piercing clamp AL/CU)
Insulation Piercing Connectors (IPC) is used for taking Tee/Tap-off/Service connectors to an ABC/Bare Overhead Line.
The insulation piercing connectors should conform to the standard NF C 33-020 or equivalent standard, if any.
Insulation Piercing Connectors are designed to make a connection between the uncut main conductor and a branch cable conductor without having to strip either cable to expose the conductor. Instead, the tightening action of the IPC will first pierce the insulation, then make good electrical contact between the main end and branch conductor while simultaneously insulating and sealing the connection.
 
 
3.5.1. Constructional Features of IPC
The housing shall be made entirely of mechanical and weather resistant plastic insulation material and no metallic part outside the housing is acceptable except for the tightening bolt.
Any metallic part that is exposed must not be capable of carrying a potential during or after connector installation.
Screws or nuts assigned for fitting with IPC (Insulation Piercing connector), must be fitted with Torque limiting shear heads to prevent over tightening or under tightening (min & max torque values to be specified by Manufacturer).
The IPC must perform piercing and connection on Main and Branch cable simultaneously. The IPCs shall be water proof and the water tightness shall be ensured by appropriate elastomer materials and not by grease or paste alone. Design of IPC should be such as to not cause damage to the insulation of adjacent conductors due to vibration and relative movement during service.
The connector shall have a rigid removable end cap which can be slide fitted on the main connector body on either right or left by the installer(depending on site requirement) for sealing the cut end of the branch cable. Once the connector is fitted, it should not be possible to remove the cap without removing the connector.
3.5.2. Inspection and Testing
Tests shall be according to EN 50483 or equivalent.

3.1 Strain clamp
3.18.1 Design

Bolted dead-end strain clamps, clevis type, minimum breaking load 70kN, all ferrous parts to be hot-dip galvanized. Suitable for conductor diameter 5 – 14mm complying with the following standards.
 
DIN 48215 Clamps and connectors for overhead power line
IEC 60228 Conductors of insulated cables
BS 6360 Specification for conductors in insulated cables
BS 03288 Insulator and conductor fittings for overhead power lines
 
3.18.2. Material
The parts of the clamps shall be manufactured from materials, which withstand the mechanical loads and environmental circumstances. All ferrous parts shall be hot-dip galvanized.
Each clamp shall be marked with the name or trademark of the manufacturer. The markings shall be legible and durable.
3.18.3. Testing
Type and sample tests shall be as per the relevant standard including;
Verification of dimensions
Mechanical test
Electrical test
Galvanizing test

3.1 Stay rod for MV

3.17.1 Standard
Any Standard which fits our design requirements is acceptable.
3.17.2. Material
* To protect corrosion stay rod shall be well hot dip-galvanized.
3.17.3 Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Each and every dimension according to the given drawing.
3.17.4 Testing
The following testing shall be carried out.
           a.   Visual inspection
           b. Size inspection.
           c.    Galvanizing test

Stay rod for LV

3.16.1 Standard
Any Standard which fits our design requirements is acceptable.
3.16.2. Material
* To protect corrosion stay rod shall be well hot dip-galvanized.
3.16.3. Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Each and every dimension according to the given drawing.
3.16.4 Testing
The following testing shall be carried out.
           a.   Visual inspection
           b. Size inspection.
           c.    Galvanizing test

3.1  Stay plate for MV
3.15.1 Standard
Any Standard which fits our design requirements is acceptable.
3.15.2. Material
* To protect corrosion stay plate shall be well hot dip-galvanized.
3.15.3. Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Each and every dimension according to the given drawing.
3.15.4 Testing
The following testing shall be carried out.
           a.   Visual inspection
           b. Size inspection.
           c.    Galvanizing test

3.1  Stay plate for LV
3.14.1 Standard
Any Standard which fits our design requirements is acceptable.
3.14.2. Material
* To protect corrosion stay plate shall be well hot dip-galvanized.
3.14.3 Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Each and every dimension according to the given drawing.
3.14.4 Testing
The following testing shall be carried out.
           a.   Visual inspection
           b. Size inspection.
           c.    Galvanizing test

     M16, 400mm long bolt nut and washer 
3.12.1. Standard
BS 4190 or equivalent is acceptable.
3.12.2. Design
Long bolt nominal diameter (d) 16 mm and lead 2.
Minor threaded diameter (dk) 14mm.
Thickness of head (k) as per BS standard
The nut shall fit long bolt threaded diameter.
Thickness of nut head (m) as per BS standard
Width of head across flats (s) as per BS standard.
Width of head across angle (e) as per BS standard
Washer diameter (d1) as per BS standard.
Thickness of washer as per BS standard.
Inside diameter of washer (h) as per  BS standard
To protect corrosion long bolt shall be well hot dip-galvanized.
3.12.3. Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Threads of long bolt shall be according to the design dimension.
* Each and every dimension according to the given drawing.
3.12.4 Testing
The following testing shall be carried out.
           a.   Visual inspection
           b. Size inspection
           c.    Galvanizing test

3.1   M16, 300mm long bolt nut and washer 
3.11.1 Standard
BS 4190 or equivalent is acceptable.
3.11.2 Design
Long bolt nominal diameter (d) 16 mm and lead 2.
Minor threaded diameter (dk) 14mm.
Thickness of head (k) as per BS standard
The nut shall fit long bolt threaded diameter.
Thickness of nut head (m) as per BS standard
Width of head across flats (s) as per BS standard.
Width of head across angle (e) as per BS standard
Washer diameter (d1) as per BS standard.
Thickness of washer as per BS standard.
Inside diameter of washer (h) as per  BS standard
To protect corrosion long bolt shall be well hot dip-galvanized.
3.11.3. Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Threads of long bolt shall be according to the design dimension.
* Each and every dimension according to the given drawing.
3.11.4 Testing
The following testing shall be carried out.
           a.   Visual inspection
           b. Size inspection
           c.    Galvanizing test

3.1 Earthing Rod with Clamp
Profiled earthing rods of hot dip galvanized steel with connecting lugs. Cross-section and length of profile shall be 50x50x3 mm and 3 m long, respectively. The earthing rod should also be in accordance with the corresponding drawing of this tender.
Earthing rod clamps suitable for stranded copper conductor of 25-35 mm2.
 
3.10.1 Guaranteed Value
 
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Each and every dimension according to the given drawing.
 
3.10.2. Testing
 
The following testing shall be carried out.
 
           a.   Visual inspection
           b. Size inspection
           c.    Galvanizing test

 Standard :BS or equivalent is acceptable.
 Design
– Small collar nominal diameter (d) 12 mm and lead 2.
– Minor threaded diameter (dk) 10mm.
– Thickness of head (k) as per BS standard
– The nut shall fit small collar threaded diameter.
– Thickness of nut head (m) as per BS standard
– Width of head across flats (s) as per BS standard.
– Width of head across angle (e) as per BS standard
– Washer diameter (d1) as per BS standard.
– Thickness of washer as per BS standard.
– Inside diameter of washer (h) as per  BS standard
To protect corrosion small collar shall be well hot dip-galvanized.

3.13.3 Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Threads of small collar shall be according to the design dimension.
* Each and every dimension according to the given drawing.
3.13.4. Testing
The following testing shall be carried out.
           a.   Visual inspection
           b. Size inspection
           c.   Galvanizing test
 Big collar, type 2
Standard

BS or equivalent is acceptable.
 Design
– Big collar nominal diameter (d) 16 mm and lead 2.
– Minor threaded diameter (dk) 14mm.
– Thickness of head (k) as per BS standard
– The nut shall fit big collar threaded diameter.
– Thickness of nut head (m) as per BS standard
– Width of head across flats (s) as per BS standard.
– Width of head across angle (e) as per BS standard
– Washer diameter (d1) as per BS standard.
– Thickness of washer as per BS standard.
– Inside diameter of washer (h) as per  BS standard
To protect corrosion big collar shall be well hot dip-galvanized.
. Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
* Threads of big collar shall be according to the design dimension.
* Each and every dimension according to the given drawing.
 Testing
The following testing shall be carried out.
 
           a.   Visual inspection
           b. Size inspection
           c.    Galvanizing test

Tie Strap
The strap shall have a cross section dimension of 50 x 5 mm
The strap shall have a cross section dimension of 50 x 5 mm.
The strap manufactured for suspension/intermediate assembly according to the given drawing (see the drawing)
Yield strength of tie strap must be 240N/mm2.
To protect tie strap from corrosion it shall be hot dip-galvanized.

Guaranteed Value
The following values are guaranteed by the manufacturers as stipulated by the guaranteed characteristics table
§ Each and every dimension
§ Material strength.
3.7.4. Testing
The following testing must be carried out.
a. Visual inspection
b. Size and dimension verification.
 U channel cross-arm for 33kV

Any standard equivalent to GB/T 707 1988, 80×43, 5/8 and 100×48, 5.3/8.5 is accepted.
For suspension, T-off, angle and dead end assembly shall have a cross section dimension of
80 x 43 x 5/8mm
For transformer base U-cross arms shall have a  dimension of 100x48x5.3/8.5
U-cross arms manufactured for suspension, T-off, angle, dead end and transformer base
assembly as per the drawing
To protect U-cross arms against corrosion U-cross arms shall be hot dip-galvanized
Yield strength of U-cross arm 240N/mm²

Dead end hook 382
Hook threaded nominal diameter (A) 16mm
Minor threaded diameter (W) 14
Thickness of nut (M), washer diameter and thickness as per BS standard
Yield strength of pin must be 240N/mm²
LV Hook from corrosion it shall be hot dip-galvanized
Visual inspection
Size inspection
 Galvanizing test
Strength test

Suspension hook M16-380
Hook threaded nominal diameter (A) 16mm
Minor threaded diameter (W) 14
Thickness of nut (M), washer diameter and thickness as per BS standard
Yield strength of pin must be 240N/mm²
To protect LV Hook from corrosion it shall be hot dip-galvanized
Testing

Visual inspection
Size inspection
Galvanizing test
Strength test

The following testing shall be carried out

Dead End Clamp ,Anchoring Clamp

The clamps should be designed to Anchor LV AB cable with insulated messenger. The clamp
should anchor/hold the neutral messenger without damaging the insulation.
The clamp should conform to the standard NFC 33041 and 33042 or equivalent. The clamp
body should be made of corrosion resistant Aluminium alloy, bail should be of stainless steel
and self adjusting wedges should be weather and UV resistant polymer.
Anchoring assemblies are used to firmly attach the messenger of ABC to a support and
transmit the mechanical tension at the end of a run or to the supporting structures at a major
change in direction.
 

TYPE:APG-C4
NAME:Parallel groove clamp APG-C4
Specification
 

  Al 35-300mm²     Size 105*65mm  Tri-bolts  Bolt M10*60  Weight 560g