BHC Series Explosion-proof Cast...

           

Explosion Protection Type

Standards: CENELEC, IEC, NEC

Zones:

• Zone 1 and Zone 2
• Zone 21 and Zone 22
• Class I, Zone 1 and Zone 2
• Class I, Division 2, Groups A, B, C, D

Explosion Protection Ratings:

• IECEx (Gas and dust): Ex eb IIC Gb / Ex tb IIIC Db IP66
• ATEX (Gas and dust):
  • II 2 G Ex eb IIC Gb
  • II 2 D Ex tb IIIC Db IP66

Product Parameters

Product Type: BHC-Cast Iron

Material: * Enclosure: Cast iron, powder coated surface

• Exposed fastener: Stainless steel

Enclosure Color: Window grey (RAL7040)

Degree of Protection: IP66

Ambient Temperature: -60°C ~ +100°C

Type: A, B, C, D, E, F, G, H

Connection Thread:

• Metric thread is standard type; G thread or NPT thread is optional
• Metric threads are 1.5mm pitch as standard, others thread pitch can be customized, please specify when ordering

Product Classification & Origin

HS code: 760900

Country of Origin: China

Applicable Industries

An explosion-proof bushing is a specialized accessory designed for explosive atmospheres, widely used across industries such as petrochemical, natural gas, coal, metallurgy, military, nuclear power, aerospace, firefighting, pharmaceuticals, textiles, grain & oil, municipal services, public security, shipping, ports, railways and so on. Through its robust housing and precision sealing, the explosion-proof cast iron bushing effectively isolates cable conduits, preventing the propagation of explosion flames along pipelines. It serves as an indispensable safety component for cable routing in hazardous areas. Like complete explosion-proof equipment, it is manufactured from high-strength materials, offering resistance to impact, corrosion, water, and dust. This ensures long-term sealing integrity and protection in demanding environments.

Credibility

The explosion-proof bushing is a critical foundational component that ensures both the physical safety and explosion-protection integrity of cable conduits in hazardous areas. Though often overlooked, it is an indispensable link within the entire explosion-proof electrical system for preventing the propagation of explosions. Globally, electrical equipment for use in hazardous locations is governed by stringent regulations and standards. Our certified explosion-proof bushing hold certificates of conformity issued by authorized bodies, including ATEX, IECEx, and EAC. These certificates are the authoritative proof of safety and the essential passport for global market entry.

CTA

For more detailed information on our explosion-proof cast iron bushing, customized solutions, or to request a quote, please do not hesitate to contact us. We are committed to providing you with professional lighting solutions and comprehensive technical service support.

FAQ

Q1: What is explosion-proof bushing, and how does it differ from a explosion-proof junction box?

A1: An explosion-proof bushing protects and routes cables through hazardous areas without making electrical connections. An explosion-proof junction box is used specifically for making those electrical connections and splices inside.

Q2: Why is the explosion-proof aluminium alloy bushing described as an “inconspicuous yet indispensable” safety component?

A2: It is the critical seal and entry point for all cables. By securing this conduit pathway, it acts as a primary barrier against explosion spread, making it a fundamental component for overall system safety.

Q3: What is the relationship between an explosion-proof through-wiring box and an explosion-proof cable gland? How do they work together?

A3: The cable gland is the sealing component that attaches to the box. For a safe installation, the gland must be certified for the same (or higher) hazard level as the box and be the correct size and thread type.

A4: Key Rules for Multiple Cables in One Box

Q4: ① Do not overfill the enclosure, maintain sufficient internal space for proper heat dissipation.

② Use one dedicated explosion-proof cable gland for each cable, every gland must be the correct type and size for its specific cable.