First, establish the correct concept of product design - national standards is the most basic principles of development and design.

The development and design of a product is not only the requirement to meet national standards and related standards, and starting from the security interests of users, as far as possible to consider the possible failure problems caused by the user in the installation, use, maintenance, maintenance process. To improve product safety margin. The vitality of a product and advanced, mainly reflected in its superior performance, reliable work, followed by its practicality and appearance. Explosion proof safety performance guarantee is the most basic moral concept in the design and manufacture of enterprises.

However, the explosion-proof performance can not fully meet the needs of the former, sometimes it is impossible to achieve, it is possible to abandon the development of design. In the design development, not to reduce the cost as the basis, should consider the product quality and safety margin.

Two, improve the technical level of explosion-proof electrical equipment, the correct understanding of the standard.

Development and design of products, should first understand the standard, not only the main terms of the standard, but also consider the details and notes in the standard. Inspection agencies in the examination and inspection, strict implementation of the provisions of the standard, can not give up some of the standards and test items.

Three, raw materials and electrical components, spare parts reasonable use

To ensure that products can be in different environments and operating conditions of explosion-proof performance, the reasonable choice of raw materials is a very important factor. In particular, non-metallic materials and adhesives, sealing materials. For example: the flammability of non-metallic elements and D type flame ablation performance; light E type shell (as here emphasize explosion-proof lamps (lamp) shade resistant its light source), heat resistance, cold resistance.

Reasonable selection of electrical components and materials is also an important condition to ensure explosion-proof performance. For example: the influence caused by short-circuit current E type current meter and the heating intensity on the explosion-proof performance; reasonable application of E type light source; the special requirements of ballast fever, asymmetric power and lamp holder E type tube type fluorescent lamp; D explosion-proof lamp impact strength; introducing anti pulling device etc..

Four, reasonable structure and scientific process to ensure the reliability and stability of the product.

Reasonable structural design, can reduce the process, the realization of the provisions of the standard.

For example:

1.d type explosion-proof lamp multi cavity electrical connection parts and internal electrical components should be considered when considering the possible overlap of pressure.

2.d type explosion-proof electrical equipment and explosion-proof lamps and transparent parts and metal parts, the second A, II B should be metal coated flame retardant elastic liner or metal gasket, or direct cooperation; II C must use adhesive. Fluorescent lamp glass tube and shell with adhesive.

3 diameter cable introduction device, the reasonable use of anti pulling device.

The rational use of the wall thickness and tensile strength of the 4.d type shell, however, the use of lacing is not exactly equal to the reduction of wall thickness. In addition, attention should be paid to avoid the interior design of the structure of the curve.

5.d type integrated explosion-proof lamps should be reasonable to consider the reasonable layout of the starting element, reduce the influence of the temperature of the light source cavity.

6 for type D with a power supply (battery or other energy storage devices) or electrical explosion-proof lamps should consider short circuit batteries, causing the temperature to rise and explode.

7 pay attention to the discharge of the energy storage element in the D shell and the delayed opening of the heating part.

8.e type shell internal live parts to be protected.

9 for the protection of the sealing ring should take measures to prevent falling off.

10.e type plastic double foot fluorescent lamp should pay attention to the connection between the lamp and the lamp holder.

11.e type explosion-proof lamps to consider the lamp aging caused by ballast heating and tube type fluorescent lamp life limit of the uneven pulse overheating, resulting in lamp holder burned.

Reasonable selection of the internal terminal of 12.e junction box and the reasonable determination of the number of terminals.

13 pay attention to the special requirements of internal batteries for e products.

14 non-metallic shell surface to avoid the generation of electrostatic charges, one of the following methods can be used:

Limiting surface resistance;

Restricted surface area;

Set the static warning signs.

Press contact type explosion-proof lamps (Xianqiang thread structure) for C class II should be increased again or by isolation wiring cavity sealing device; B grade II to consider whether the cavity net volume of less than 2 liters, or above. In manufacturing process, process is the basis to ensure product quality. For the production of explosion-proof electrical appliances, the design of the structure is reasonable, the production depends on the process, equipment, personnel and quality assurance system. The process is the basis of the production process.

For example:

(1) d type II C electric appliance or explosion proof lamp explosion proof and explosion proof lamp pressure plate screw thread structure should pay attention to the precision and the quality of thread processing.

(2) particular consideration should be given to the welding methods, processes and the strength and thickness of the steel plate. This kind of products in the strength of the test is rarely fried bad, but after the overpressure test is difficult to test the internal combustion without detonation.

(3) pay attention to the preparation process and precision requirements of non-metallic materials, to prevent the dispersion and deformation of the sample performance.

(4) d type shell internal electrical components or terminals, such as the assembly to avoid the formation of adult multi cavity, resulting in pressure superposition.