Isolation Safety Barrier Manufacturer: Installation Precautions for Isolation Safety Barriers
发布时间：
2022-08-08
Isolation safety barriers manufactured by isolation barrier producers are devices used in intrinsically safe explosion-proof systems to provide electrical isolation between field instruments and control equipment. Isolation safety barriers are incorporated into the design of explosion-proof systems and explosion-proof electrical equipment. Installed in a safe location, they are devices that contain both intrinsically safe circuits and non-intrinsically safe circuits.
Isolation safety barriers manufactured by isolation barrier manufacturers are devices used in intrinsically safe explosion-proof systems to provide electrical isolation between field instruments and control equipment.
Explosion-proof systems and explosion-proof electrical equipment employ isolating safety barriers in their design. These devices, installed in safe locations, incorporate both intrinsically safe circuits and non-intrinsically safe circuits.
The circuit employs a current-limiting circuit to restrict the energy transmitted from the field to the intrinsically safe circuit, thereby preventing hazardous energy from outside the circuit from entering the intrinsically safe circuit.
In explosion-proof systems, these devices are referred to as associated equipment and constitute an essential component of the system. Next, the manufacturer of isolation safety barriers will walk you through the key installation considerations for isolation safety barriers.
Isolation Barrier Manufacturer Shares Installation Precautions for Isolation Barriers
Installation Notes:
1. Isolated safety barriers shall be installed in a safe location, free from severe mechanical vibration and impact, as well as from high currents, sparks, and strong electromagnetic induction originating from the signal side, power supply side, and surrounding environment. The ambient air shall not contain gases that cause severe corrosion of metals or plastics.
2. Wiring conductors for the intrinsically safe side (blue terminal) and the non-intrinsically safe side of the isolation safety barrier shall be routed separately in the cable tray, each using its own independent protective conduit. No other power cables, including those used by other intrinsically safe circuits, are permitted inside the conduit for the intrinsically safe side.
3. Conductors leading to hazardous locations shall be intrinsically safe blue conductors, with a stranded copper cross-sectional area of no less than 0.5 mm² and an insulation strength of at least 500 V.
4. During power-up and commissioning of intrinsically safe barriers, it is imperative to verify that the barrier’s model, wiring method, and circuit polarity comply with the design specifications and product requirements; failure to do so may result in injury to personnel and damage to equipment.
5. It is strictly prohibited to use a megohmmeter to test the insulation strength between the terminals of the safety barrier. If the system’s insulation strength is to be checked, all wiring must first be disconnected; otherwise, the internal circuitry of the safety barrier may be damaged.
6. All field instruments connected to intrinsically safe barriers shall have undergone explosion-proof testing by the national explosion-proof authority and obtained an explosion-proof certificate.
7. If an internal module of the isolated safety barrier is damaged and requires replacement, it must be repaired jointly with the manufacturer, and may only be put back into service after completion of the repair.
8. The installation, use, and maintenance of intrinsically safe barriers shall be carried out in strict accordance with the relevant provisions of GB 3836.15-2000 “Electrical Equipment for Explosive Gas Atmospheres – Part 15: Electrical Installations in Hazardous Locations (Excluding Coal Mines).”
The foregoing are the installation precautions for isolation safety barriers as outlined by the manufacturer. For more information, please feel free to contact us at any time! Our company has many years of experience and looks forward to welcoming you aboard.
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