IEC 馬達標準 GB 12350 標準 UL 馬達標準 絕緣系統
第二數字碼(防水)

Table 3 – Degree of protection indicated by the second characteristic numeral

第二數字碼

保護等級

測試條件

敘述

定義

0

無保護機械

無特別保護

無測試

1

防滴水 Machine protected against dripping water

垂直滴水無害

Table 5

2

防滴水到15° Machine protected against dripping water when tilted up to 15°

垂直滴水對15°傾斜產品無害

3

防噴水spray Machine protected against spraying water

垂直噴水對60°傾斜產品無害

4

防潑水 Machine protected against splashing water

任何角度之潑水無害

5

防噴水 Machine protected against water jet.

任何角度之噴嘴噴水無害

6

防大浪 Machine protected against heavy seas

大浪或強力噴嘴噴水進入產品無害的水量

7

防滲水 Machine protected against the effects of immersion

特定壓力(浸於水面下)與時間下大浪或強力噴嘴噴水進入產品無害的水量

8

防潛水 Machine protected against the effect of continuous submersion

客戶設定連續置於浸於水面而無害