---
title: How to Properly Join High Voltage Cable of LC-TUBE CO2 Laser Tube
source_url: https://valuefit.co.za/high-voltage-cable-joint
published: 2025-05-27 16:16:14
modified: 2026-08-19 11:23:11
fetched_at: 2026-08-30T22:11:14+0200
category: training
wp_site: https://valuefit.co.za
wp_prefix: valuefit2
wp_id: 640
wp_type: post
pass: sql16-beemo-wp-mysql-digest-2026-08-30
notes: sql16 beemocyafr_db1 published digest; public permalink; no wp internals in body.
---

# How to Properly Join High Voltage Cable of LC-TUBE CO2 Laser Tube

**Source:** [https://valuefit.co.za/high-voltage-cable-joint](https://valuefit.co.za/high-voltage-cable-joint)

- published: 2025-05-27 16:16:14
- modified: 2026-08-19 11:23:11

## 1. Tie Joint

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128001-1-1030x569-1-1024x566.jpg)

*ILLUSTRATION 1 : Tied Joint*

• Strip 7cm of Red Insulation Coating First on each end of the Joint.
• Strip 3.5cm of Clear White Contacting to Expose the Wire in the Inner Protective Coating 3mm thick.
• Tie Joint together to avoid loosening.

## 2. Solder Joint

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128002-1030x569-1-1024x566.jpg)

*ILLUSTRATION 2 : Soldered Joint*

• Apply Soldering Paste to Tied Joint.
• Roll Soldering wire on to the joint area.
• SOLDER the Joint to avoid slipping out or loosening.

## 3. Apply 3.5MM-4.6MM HEAT SHRINK TUBING

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128003-1030x569-1-1024x566.jpg)

*ILLUSTRATION 3 : 3.5MM-4.6MM HEAT SHRINK TUBING*

• Cover soldered joint with heat shrink tubing

## 4. Apply Electrical Insulation Tape

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128004-1030x569-1-1024x566.jpg)

*ILLUSTRAION 4: Use Electrical Insulation Tape*

• Stretch and apply Standard Insulation Tape to cover joint

## 5. Apply AG-TAPE-HV

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128005-1030x569-1-1024x566.jpg)

*ILLUSTRATION 5: USE AG-TAPE-HV*

• USE AG-TAPE-HV to Insulate Joint and after apply Electrical Insulation Tape to avoid it from rolling off since non-sticky.

## 6. Apply Heat Shrink Insulation 6mm

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128006-1030x569-1-1024x566.jpg)

*ILLUSTRATION 6: Heat Shrink Insulation 6mm*

• Use Heat Shrink Insulation 6mm to protect AG-TAPE/HV FROM LOSSENING OR PEELING OFF

## 7. Apply AG-HOSE/96

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128007-1030x569-1-1024x566.jpg)

*ILLUSTRATION 7: AG-HOSE/96*

• Use AG-HOSE/96 to cover entire joint from End to End

## 8. Apply 2xCable Tiers

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128008-1030x569-1-1024x566.jpg)

*ILLUSTRATION 8 : 2xCable Tiers*

• Use two medium size cable tiers to secure both ends of the [AG-HOSE/96](https://buythis.co.za/ag-hose-96) AS SHOWN ABOVE

## 9. Secure Joint to the tube

![](https://valuefit.co.za/wp-content/uploads/2025/05/ValueFit_TrainigHighVoltageCableJoin_128009-1030x569-1-1024x566.jpg)

*ILLUSTRATION 9 : Secure Joint to the Tube*

Secure Joint plus excess High voltage Cable on to the Tube to Prevent it Touching/Earthing on the Machines Body for further Protection.

### Notes!

• This format of Joining the LC-TUBE Red High Voltage cable does not exhaust the whole AG-TAPE/HV.
• The risk of it Short-circuiting or Earthing with the body of the Machine minimum and close to none.
• Joint as firm as you can even tug on the cable and does not Strip or Leak.
• Use of this format is much neater in appearance as well as very strong.
• Durable and Cost Effective, Less Power Leakage risk and also Water Tight