SMC cable branch box
Source: Leapingsoar Electric 2024-05-10 182 Secondary browsing

Product Overview
The box body of the SMC cable junction box is made of SMC composite material (sheet molded plastic) and molded in one go at high temperature. It has the advantages of light weight, corrosion resistance, aging resistance, good sealing performance, aesthetics, and all-weather protection function, which can meet the needs of various harsh environments and places in outdoor engineering projects. It overcomes the defects of short corrosion life and poor insulation performance of outdoor metal cable branch box boxes. It is widely used in three-phase low-voltage transmission and distribution systems in outdoor public places such as transformer substations, public mining enterprises, street sides, garden residential communities, high-rise buildings, airports, and key construction and renovation projects. It serves as a complete set of standardized equipment for distributing electricity to other users or equipment through cables.
Application environment condition control equipment

Table of Environmental Conditions for Use

Number

Name

unit

Project demand value

1

Pollution level

 

III (indoor)/IV (outdoor)

2

ambient temperature

ambient temperature

-25~40℃(户内)

-25~45℃(户外)

Maximum daily temperature difference

K

25

Average temperature of the hottest month

30

Maximum annual average temperature

20

3

humidity

Average daily relative humidity

%

95

Average monthly relative humidity

90

4

altitude

M

1000

5

Solar radiation intensity

W/cm2

0.1

6

Ability to withstand earthquakes

Ground horizontal acceleration

m/s2

0.2g

Ground vertical acceleration

m/s2

0.15g

Sinusoidal resonance for 3 cycles
safety factor

 

1.67

7

Installation site

Indoor/Outdoor

 

Referenced standards
GB 7251 Low voltage switchgear and control equipment
GB 14048 Low voltage switchgear and control equipment
GB/T 20641 General Requirements for Hollow Enclosures of Low Voltage Switchgear and Control Equipment
GB 4208 Housing Protection Level (IP Code)
GB 4720 Low voltage electrical control equipment