GT-150 copper connecting tube

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GT-150 copper connecting tube

GT-150 copper connecting tube

(1 đánh giá)

đầu nối đồng GT-150

GT-150 copper connecting tube is a straight, pass-through connector designed to join two compatible copper cable ends by crimping. According to the dimensional table, the connector has a 22mm outer diameter, a 17mm inner diameter and an overall length of 94mm.

Before selection, compare the actual conductor diameter with the 17mm internal bore instead of treating the nominal cable cross-section as the conductor diameter. The conductor material, connector condition, crimping tool and die compatibility should also be checked before installation. Send the GT-150 model, cable details and required quantity to Truong Phat for specification checking and quotation support.

When two sections of cable must be joined along the same route, the GT-150 copper connecting tube provides a straight connection without the palm or bolt hole found on a cable lug. It belongs to the GT Copper Connecting Tube pass-through range, allowing cable ends to be inserted from opposite sides before being secured with a compatible crimping system.

The GT-150 row in the supplied dimensional table specifies an outer diameter of 22mm, an inner diameter of 17mm and an overall length of 94mm. These dimensions should be checked when selecting the cable, planning the joint location and preparing the required tools. The nominal cable cross-section must not be treated as the actual conductor diameter.

What is the GT-150 copper connecting tube used for?

GT-150 is intended to create a straight crimped joint between two compatible copper conductors. Each cable end is inserted into one side of the tube, and the connection is then completed using suitable crimping equipment.

This design is commonly considered where a cable needs to be extended, a damaged section needs to be replaced or a straight cable joint is required within an approved installation arrangement.

The product should not be confused with a bolted cable lug. A bolted lug normally includes a barrel for the cable and a palm with a fixing hole for connection to a busbar, terminal or electrical device. GT-150 is a straight connecting tube without a lug palm or bolt hole.

  • Joining two compatible copper cable ends along the same route.
  • Repairing a cable section where a crimped straight joint is specified.
  • Extending a copper conductor within a suitable joint enclosure.
  • Supporting electrical installation and maintenance work that uses an approved crimped connection method.

GT-150 dimensional specifications

Specification Symbol Value
Catalog model Cat.No. GT-150
Product type - Straight pass-through copper connecting tube
Outer diameter D 22mm
Inner diameter d 17mm
Overall length L 94mm
Connection method - Crimping with compatible equipment

The 17mm inner diameter is the bore dimension shown in the catalog drawing. It is not automatically the conductor diameter of every cable identified by a nominal cross-section of 150mm². Conductor construction, strand arrangement and compaction can affect the actual diameter.

The cable datasheet or measured conductor dimensions should therefore be checked before ordering. The conductor must not be modified by removing strands simply to make it fit inside the connector.

Construction and suitable applications

The GT-150 has a hollow cylindrical structure with both ends open. The internal bore passes through the tube, allowing two conductors to be positioned from opposite directions in a straight line.

Its 94mm overall length provides the physical body needed for cable insertion and crimping according to the approved installation procedure. The 22mm outer diameter should also be considered when selecting insulation materials, cable joint enclosures and the available installation space.

The 17mm internal bore is one of the main dimensions used to assess cable compatibility. Selection should not be based only on the model name or nominal cable size.

The GT-150 copper connecting tube is intended for compatible copper conductors. A copper tube should not be used to connect an aluminum conductor directly. Where aluminum cable or a copper-to-aluminum transition is involved, a connector specifically designed for those conductor materials must be selected.

For cable termination onto busbars or electrical equipment, refer to the SC copper cable lug range or the DT solid copper cable lug range. For copper-to-aluminum applications, review the DTL copper-aluminum lug category instead of applying GT-150 to an unsuitable conductor combination.

Checks to complete before ordering

Confirm the conductor material

The first step is to verify that both cable conductors are copper. When one side is aluminum, a connector specifically designed for aluminum or copper-to-aluminum transition applications is required.

Compare the conductor with the 17mm bore

The actual conductor diameter should be compared with the GT-150 inner diameter of 17mm. A conductor that is too large cannot be inserted correctly. A conductor that is too small may not be compatible with the connector and crimping arrangement.

Do not convert a nominal cross-section of 150mm² directly into a conductor diameter without checking the cable construction.

Check the available installation space

The 94mm length and 22mm outer diameter must be suitable for the joint enclosure, insulation arrangement and cable routing. Additional working space is also required for the crimping tool, especially when installing large cables in restricted positions.

Verify the crimping tool and die

The crimping die must be compatible with the conductor, connecting tube and tool system. Crimping force, crimp positions and the number of crimps must follow the instructions supplied with the tool, die, connector or approved project procedure.

These values must not be selected only from the connector dimensions.

Installation preparation and safety guidance

  1. Isolate the electrical supply, verify the absence of voltage and prevent unintended re-energization according to the site safety procedure.
  2. Confirm that both cable conductors are copper and are compatible with the GT-150 connector.
  3. Inspect the connecting tube for cracks, deformation, a flattened bore or internal contamination.
  4. Remove the cable insulation according to the approved installation procedure. Do not determine the stripping length solely from the connector length.
  5. Clean the conductor surface and maintain the original strand arrangement.
  6. Do not remove conductor strands to make the cable fit inside the tube.
  7. Insert both cable ends into the connector in accordance with the required joint arrangement.
  8. Keep the cables aligned and avoid sideways mechanical loading during crimping.
  9. Use a compatible crimping tool and die. Apply the specified force, crimp sequence and number of crimps provided by the equipment manufacturer or approved technical procedure.
  10. Inspect the completed crimp, mechanical retention and connector condition before applying the joint insulation.
  11. Complete insulation, protection and cable positioning according to the electrical system design.

Do not use a hammer, bench vice or an unsuitable compression method as a substitute for a proper crimping tool. The conductor should not be filed, cut or reduced to force it into the tube because this changes the effective conductor cross-section.

Frequently asked questions about GT-150

Is GT-150 a bolted cable lug?

No. GT-150 is a straight pass-through connecting tube without a palm or bolt hole. It is used to join two cable ends by crimping.

What are the GT-150 dimensions?

According to the supplied catalog table, the outer diameter D is 22mm, the inner diameter d is 17mm and the overall length L is 94mm.

Can GT-150 be used directly with aluminum cable?

No. A copper connecting tube should not be used for a direct connection to an aluminum conductor. A connector designed for aluminum or copper-to-aluminum transition applications is required.

Is the 17mm bore equal to the diameter of every 150mm² conductor?

No. Nominal conductor cross-section and actual conductor diameter are different parameters. The cable construction and actual conductor dimensions must be checked before ordering.

How many crimp points are required for GT-150?

The number of crimps cannot be determined from the dimensional table alone. It must follow the instructions for the connector, crimping tool, die or approved installation procedure.

What information is needed for a quotation?

Please provide the GT-150 model, required quantity, conductor material, nominal cable cross-section, actual conductor diameter when available and details of the crimping tool or die being used.

Request a GT-150 copper connecting tube quotation

To request pricing for the GT-150 copper connecting tube, please send the required quantity, copper cable specification and conductor dimensions for checking. Truong Phat can compare the requested product with the catalog dimensions D22, d17 and L94mm before confirming the supply specification.


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📍 Số 47, Liền kề 26, KĐT Văn Phú, P. Phú La, Hà Đông, Hà Nội

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