The reason why the self-limiting temperature electric heating cable does not heat up when it is energized
- Categories:Industry News
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- Time of issue:2022-05-30
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(Summary description)Self-limiting temperature heating cable is composed of conductive polymer, two parallel metal wires and insulating sheath. Its characteristic is that the conductive polymer has a high positive temperature coefficient and is connected in parallel with each other. It can automatically adjust the output power with the temperature change of the heated system, and automatically control the temperature range. When the temperature reaches a specific value, it will automatically turn off the power. When the temperature When the value is lower than a certain value, the power will be turned on automatically, and the operation is convenient. It is widely used in pipeline heat tracing, heat preservation, antifreeze, anticondensation, etc. in various industries.
自限温电伴热带通电不发热的原因
自限温电伴热带通电不发热的原因
The reason why the self-limiting temperature electric heating cable does not heat up when it is energized
(Summary description)Self-limiting temperature heating cable is composed of conductive polymer, two parallel metal wires and insulating sheath. Its characteristic is that the conductive polymer has a high positive temperature coefficient and is connected in parallel with each other. It can automatically adjust the output power with the temperature change of the heated system, and automatically control the temperature range. When the temperature reaches a specific value, it will automatically turn off the power. When the temperature When the value is lower than a certain value, the power will be turned on automatically, and the operation is convenient. It is widely used in pipeline heat tracing, heat preservation, antifreeze, anticondensation, etc. in various industries.
- Categories:Industry News
- Author:
- Origin:
- Time of issue:2022-05-30
- Views:0
The self limiting electric heating strip is composed of a conductive polymer, two parallel metal wires, and an insulation protective layer. Its characteristic is that conductive polymers have a high positive temperature coefficient and are connected in parallel with each other. They can automatically adjust the output power and control the temperature range according to the temperature changes of the heated system. When the temperature reaches a specific value, the power will be automatically turned off. When the temperature drops below a specific value, the power will be automatically turned on, which is easy to operate and widely used in various industries such as pipeline heating, insulation, antifreeze, and anti-condensation.
If the electric heating strip does not generate heat after installation, there may be several possible reasons:
1. The electric tracing band is damaged, and the testing location is exactly where the electric tracing band is damaged. The parallel structure determines that there is still current in the tracing band, but the damaged part cannot generate heat and needs to be repaired.
2. If there is no power supply voltage or the power supply voltage is too low, check the bus voltage at the power input point of the heat tracing circuit and fix the fault here.
3. The tail end is not properly sealed, and the two wires at the tail end of the electric tracing cable must be separated. The tail end junction box should be sealed with 704 sealant to prevent water from entering and causing a short circuit.
4. Exceeding the usage length of the self limiting temperature electric heating strip, the usage length of the self limiting temperature electric heating strip cannot exceed 100 meters, otherwise it may cause faults such as overheating of the heating strip.
5. The insulation layer has not undergone waterproof treatment. In rainy and snowy days, the insulation layer is soaked in water, causing the electric heating strip to be in a low temperature or humid state for a long time. It is necessary to re install the waterproof layer along the entire insulation layer to ensure that the electric heating strip works in a dry state.
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