文山干式变压器：文山干式变压器外壳防护等级

文山干式变压器外壳防护等级 　　
对于带外壳的文山干式变压器，其外壳按外壳防护等级(IP代码)GB4208-1993的规定.即不带外壳时为IP20;带外壳时为IP23。外壳能防止设备受到某些影响并在各个方向防止直接接触的设备部件，其中代码IP20是指能防止12.5mm固体异物进入，但不能防止进水造成的有害影响；IP23能防止12.5mm固体异物进入.并能防止各垂直面在60°范围内淋水，无有害影响。

Dry-type transformer enclosure protection rating

The dry type power transformers for the ba企业账号：1611 0032 092 00213 086nd shell, the shell by shell protection (IP code) GB4208-1993 requirements. Without the shell as the IP20; with shell IP23. Shell to prevent the equipment subject to certain effects and to prevent direct contact with the parts of the equipment in all directions, the code IP20 means to prevent solid foreign matter into the 12.5mm, but can not prevent the water harmful effects; IP23 to prevent 12.5mm solid foreign objects to enter and to prevent the vertical plane within the range of 60 °, watering, no harmful effects.

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