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Basic knowledge of explosion-proof stuffing box

Explosion proof stuffing boxes are widely used for sealing cables in explosion-proof electrical products, commonly including stuffing type cable entry devices and stuffing type conduit sealing devices. The filler type cable entry device is generally installed at the connection between the cable port and the explosion-p……

Design requirements for transparent components in explosion-proof enclosures

Explosion proof electrical equipment is widely used in hazardous areas of Zone 1 and Zone 2 in explosive gas environments. In order to facilitate users to observe, record, or distinguish the display data, operating status, or basic lighting function inside the device, manufacturing companies often install some transpar……

Relevant laws and regulations on regular testing of explosion-proof electrical equipment

Regular inspections are a powerful guarantee for the use and explosion-proof safety performance of explosion-proof equipment used in explosive hazardous areas throughout its entire lifecycle, including production, installation, use, inspection, maintenance, and exit from the market. Relevant laws and regulations in our……

Basic requirements for regular inspection of explosion-proof electrical equipment

As a third-party organization specializing in explosion-proof electrical testing, Zhongnuo Testing has unique insights into explosion-proof testing cycles, standards, qualifications, testing content, processes, and requirements for enterprises and personnel. Below, Zhongnuo Testing will share with you. The basic requir……

Explosion proof Certificate Query Center

At present, there are more than ten qualified explosion-proof certification institutions in China, and the qualifications of each institution are authorized by the national CNAS qualification, with the same qualifications and effectiveness. There is no unified search website for the explosion-proof certificates of majo……

How to apply for product explosion-proof certification? What is the processing procedure and how much does it cost?

As a professional explosion-proof certification agency, Zhongnuo Testing is familiar with the technical requirements and processing procedures for explosion-proof certification of various products. The basic process for applying for explosion-proof certification at Zhongnuo Testing is as follows: 1. Provide product dra……

Are the effectiveness of explosion-proof certificates issued by different explosion-proof certification agencies the same?

Zhongnuo Testing has been engaged in explosion-proof certification agency services for many years and has encountered various clients. Some clients come to inquire and specify that we need a certificate issued by Nanyang, which has higher authority; Alternatively, our product is a flow meter and requires a certificate ……

What are the official institutions that provide explosion-proof certification?

In China, when it comes to explosion-proof certification, people always think of companies such as Nanyang Explosion proof Institute and Shanghai Instrument Institute, because they are among the earliest enterprises engaged in the explosion-proof industry in China and have participated in the drafting and writing of ex……

Can NEPSI certification be converted to IECEx certification?

Those engaged in the explosion-proof industry know that NEPSI certification refers to the explosion-proof certification applied for and processed at NEPSI (National Instrumentation Explosion Safety Supervision and Inspection Station, abbreviated as Shanghai Explosion proof Institute), which is one of the more authorita……

Do I need to apply for both the explosion-proof certificate and the explosion-proof CCC certificate at the same time?

Many corporate clients ask about the issue of explosion-proof CCC certification when consulting for the application of explosion-proof qualification certificates. This indicates that the transition period for explosion-proof CCC certification is one year, and the mandatory implementation period is one year. The two-yea……