What is the minimum temperature for thermal deformation of the casing of rural lighting electrical ready boards in Africa? Prevent high temperature deformation

In response to the environmental characteristics of rural Africa, it is recommended that the material's thermal deformation temperature not be lower than 75 ℃ to prevent deformation of the electrical ready board casing due to high temperatures. If the budget allows, using materials with better heat resistance (such as PC/ABS alloy) will be more reliable.

This suggestion is based on a comprehensive analysis of extreme environments, material characteristics, and relevant standards in Africa:

The actual challenge of high temperatures in rural Africa: In rural Africa, electrical ready boards often need to be exposed to sunlight for long periods of time. According to data, the local noon temperature can reach 45 ℃, and ordinary plastic boxes may deform within six months. Even according to the international standard (IEC 60670-1), it is required that the casing can adapt to an ambient temperature not exceeding 40 ℃ (an average of 35 ℃ over 24 hours). However, considering the actual direct sunlight, the temperature on the surface of the box will be much higher than the air temperature, so it is necessary to put forward higher requirements for the material's heat resistance.

Comparison of heat resistance performance of different materials: The thermal deformation temperature of different materials varies greatly, which directly determines their applicable scenarios and costs:

Analysis of the advantages and disadvantages of material types

Ordinary ABS plastic: about 70 ℃, advantages: low cost, easy processing. Disadvantage: It is prone to deformation under high temperatures in Africa and is not recommended for outdoor use.

Flame retardant PC/ABS alloy: generally above 90 ℃, advantages: better heat resistance and impact resistance than ordinary ABS, excellent comprehensive performance, is an ideal choice for outdoor electrical ready boards.

High quality ABS (such as HA series): claims to be able to withstand 45 ℃ environment, advantages: through formula improvement, claims to be three times more durable than ordinary ABS. Disadvantage: The specific thermal deformation temperature is not clear, but it is clearly optimized for high temperatures.

SMC composite: up to 280 ℃, advantages: extremely strong heat resistance, light weight, high strength, anti-aging and other advantages. Disadvantages: High cost, commonly used in demanding industrial or explosion-proof environments.

How to choose the right materials for your project?

Using 75 ℃ as the minimum threshold: When selecting, whether the thermal deformation temperature of the shell material is ≥ 75 ℃ should be taken as the most basic qualification indicator. This is the key to ensuring that it can "survive" the first summer in outdoor environments in rural Africa.

Preferred UV resistant materials: In addition to high temperatures, strong ultraviolet radiation in Africa can also accelerate plastic aging and brittleness. It is recommended to prioritize ABS or PC/ABS alloy materials that are clearly labeled with "UV resistant" function, as this can effectively extend their service life.

If you still need advice on the protection level (such as dust and water resistance) or internal electrical configuration of the electrical ready board, feel free to ask us again.