Insufficient length when installing electric heat tracings is a common problem. To solve this problem, you can do the following:
First, you can consider buying a longer electric heat tracing. Before purchasing, you'll need to measure the length of your existing electric cable and calculate the additional length required. You can choose the same model as your existing electric heat trace to ensure they fit together perfectly. If you can't find the same type of electric heat tracing, you can choose other models, but you need to make sure that they have the same parameters such as power and voltage.
If you can't afford to buy a longer electric heat tracing, you may consider using a connector to connect the two electric heat tracings together. Before using the connector, you need to make sure that the end face of the electrical cable trace is flat and free of damage or dirt. Then, secure the connector to the end face of the two electrical heat tracing, making sure they are in close contact. Finally, use tape or retaining clips to secure the connector to the pipe to prevent it from loosening or falling off.
Additionally, if you are unable to purchase a longer electric heat trace or use a connector to connect two electric heat tracing, you may consider using multiple short electric heat tracings instead of long electric heat tracing. This method may require more installation time and materials, but it ensures that you will be able to meet the requirements for the length of the electric heat tracing.
Whichever method you choose, you need to be aware of security concerns. When installing an electric heat tracing, it is necessary to follow the manufacturer's instructions and regulations and use appropriate tools and materials. If you're not sure how to install an electric heat trace or use a tool such as a connector, consult a professional or manufacturer's representative.