Seeking advice on electric tracing design for hazardous areas
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Hello everyone! May I ask how many pipelines for other materials are there in the liquid ammonia tank area? It is planned to use electric heat tracing for heating – is this in compliance with the regulations? The concern is that if the electric heating element fails and sparks are generated, this area is a dangerous one. Thank you!
Electric heating technology is now quite mature; by choosing a manufacturer of appropriate quality, there will be no issues with compliance
The electric heating elements used in flammable and explosive areas should have explosion-proof markings suitable for such areas. The controllers for electric heating elements can be designed to be explosion-proof, but it is not clear whether the heating cables themselves can also be made explosion-proof; it is advisable to consult the manufacturer.
Then replace it. The electric heating system in our liquefied gas tank area has experienced short circuits and sparks on several occasions; it’s extremely dangerous. It is technically permissible to use them, but it is necessary to choose ones of good quality and to ensure proper installation. In some cases, problems arise during installation, which leads to damage to the outer covering and results in the resistance wires coming into contact with the pipes or touching each other, causing a short circuit. Be sure to pay attention.