Tianjin Electric Heater Explosion-Proof Standard Certification

Shenzhen Zhongnuo Inspection & Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering one-stop explosion-proof technology consulting services.
Difference between Intrinsically Safe and Explosion-Proof:
These are two different types of explosion-proof protection.
Explosion-proof typically involves using an explosion-proof housing for protection, which must have adequate thickness and strength.
Even in the event of an explosion within the equipment, the flame will be extinguished due to the width, gap, and roughness of the explosion-proof shell joint surfaces, preventing ignition of the external hazardous environment.
On the other hand, even in the event of an explosion in a hazardous area outside, the explosion-proof housing maintains its anti-explosion properties.
In summary, the shell is both shock-resistant and explosion-proof. The equipment will be rather heavy.
intrinsic safety, also known as inherently safe equipment, achieved through limiting circuit energy and other means.
Safety-certified products have higher requirements for equipment circuits and operating power, generally suitable for handheld devices and low-power products.

The Difference Between Applying for Explosion-Proof Certification and Intrinsically Safe Certification
Intrinsically safe is a type of explosion-proof protection. Besides intrinsically safe, there are also flameproof, increased safety, and sealed immersion, etc.
The intrinsic safety certification merely indicates that this equipment employs an intrinsic safety explosion-proof type and has obtained explosion-proof certification.
The intrinsic safety protection type generally achieves explosion-proofing by limiting the energy of the equipment, and is inherently safe.
Suitable for low-power products, handheld devices, etc.

Domestic explosion-proof certification models are divided into three cases -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Explosion-proof certification system
Applicable Products: Electrical and non-electrical equipment used in places with explosive gases and dust (excluding explosion-proof 3C product catalog) that are not for mining purposes.
Certification Model: Product Testing
Certification Certificate: Explosion-Proof Compliance Certificate
Certificate Validity: 5 years
Annual Audit Required: No
2. Explosion-proof 3C Certification System
Applicable Products: Electrical Equipment listed in the Explosion-Proof 3C Catalog
Certification Mode: Combination of Type Testing and Factory Audit
Certification Certificate: CCC Certificate
Certificate Validity: 5 years
Annual Audit: Yes, an annual audit is required.
3. Coal Safety/Mining Safety Certification System
Applicable Products: Various electrical and non-electrical equipment for use in both coal mines and non-coal mines underground
Certification Model: Combination of Type Testing and Factory Audit
Certification Certificate: Mine Product Safety Mark Certificate
Certificate Validity: 5 years
Whether Annual Audit: Audited Annually

What specific drawings are required for the application of ATEX certification for product safety?
1. General assembly drawing
2. Circuit wiring diagram
3. Circuit Diagram
PCB Layout
5. Component layout drawing
6. Component Material List
7. Transformer and inductor coil diagrams (if applicable)
8. Packaging Diagram
9. Label Design
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Inspection Technology Co., Ltd.