电动葫芦运行条件： 环境温度：-20℃～+40℃ 工作制度：中级JC25% 重级：JC40% 当中级工作制度电动葫芦的起重量降低30%时，即为重级工作制度JC40%的电动葫芦。 重级工作制度JC40%的电动葫芦是用在工作比较繁重，负载经常在额定值或要求安全系数较高的情况下。 Electric hoist operating conditions: ambient temperature: -20 C to +40 C working system: intermediate JC25% heavy grade: JC40% when the intermediate work system electric hoist is reduced by 30%, that is, the heavy duty system JC40% electric hoist. The electric hoist of JC40%, a heavy duty system, is used for heavy work, and the load is often under the condition of high rated or demanding safety factor.