کابل های گرمایش برق به تدریج مورد پذیرش گسترده مردم قرار می گیرد. ضمن اینکه نصب کابل های گرمایشی نیز از دغدغه های مردم است. به طور کلی، تولید کنندگان حرفه ای کابل گرمایش خدمات نصب کابل های گرمایش برق را ارائه می دهند، اما گاهی اوقات با توجه به هزینه پرسنل، هنگام نصب کابل های گرمایش برق توسط خودمان باید به چه نکاتی توجه کنیم؟
First of all, before installation, we should check that the anti-rust and anti-corrosion coating of the object to be traced should be dry, the burrs and sharp corners on the pipeline, the surface of the electric trace cable should not be damaged, and the insulation resistance should be Greater than or equal to 20MΩ (1000VDC). Do not pull it strongly, and avoid placing pedals or heavy objects on it. The model of the electric heating cable and all accessories should be consistent with the design requirements.
نظارت بر امور قبل از نصب سیم گرمایش ردیابی الکتریکی:
1. You should have a detailed understanding of the various indicators, structure and installation methods of electric heating wire products.
2. Before installation, the electric trace heating wire and process pipelines (containers) must all be constructed and passed the water pressure (air tightness) inspection, and the surface of the pipelines (containers) has been
پس از زنگ زدگی، ضد خوردگی، خشک و صاف، بدون خراش، کثیفی.
3. Before installing the electric heating cable, the appearance inspection of the installed electric heating cable products should be carried out, such as whether the device is damaged, deformed, cracked or other abnormalities, and whether the mechanical temperature control is normal.
4. The installation diagram of the electric heating cable system should be understood in detail, and the specifications, variety and quantity of the product and the installation location should be confirmed.
5. Whether the insulation material is dry, if it is wet and dry, it can be kept warm, so as to avoid the failure of the heat tracing insulation effect of the electric heating wire.
6. Electric heating cable installation manual should be prepared to record the installation content at any time.
Furthermore, we must be careful not to mix traditional heating systems such as steam heating systems with electric heating systems before installing the electric heating wire. Thermal efficiency. If the body to be traced is a non-metallic body, use adhesive tape to increase the contact heat transfer area, fix it with nylon ties, and strictly use wire binding. The medium at the flange is easy to leak, and it should be avoided directly below it when winding the heating tape. One end of the electric cable is connected to the power supply, and the other end of the wire core is strictly prohibited from being short-circuited or contacting with conductive substances and cut into a "V-shaped". It must be tightly sealed with a matching head; there should be a matching explosion-proof junction box and terminal for waterproof and explosion-proof occasions. After wiring, it should be sealed with silicone rubber (the shielding layer must be peeled off by 250px at the terminal of the electric heating cable using the shielding layer to prevent short circuit); the insulation of the hot spot should be measured one by one during installation, the shielding layer must be grounded, and the insulation resistance value is small. At 20MΩ}(1OOOVDC), select bipolar power-off and leakage protection circuit breakers according to the voltage, current and other parameters of the electric heat tracing circuits. When the steam cleaning pipeline needs to be descaled, attention should be paid to the installation of electric heat tracing lines after cleaning. , If the annual routine sweeping maintenance is required, it should be designed and installed according to special circumstances.