IP防水等级（IP waterproofing grade）.docVIP

IP防水等级（IP waterproofing grade） IP level (dustproof and waterproof) definition [entry: power169 | : 2006-12-16 23:14:59 | : | source:] [last article] [next] Provides an IP rating system for electrical equipment and the degree of dustproof, waterproof, and collision of packaging to the product classification method, the system has won the acceptance of most European countries, and in IED529 (BS EN 60529:1992) announced in the outer protection grade (IP code). The level of protection is expressed as IP followed by two Numbers. The number is used to specify the level of protection. The first number indicates the extent to which the device resists dust, or the extent to which people are protected from harm in a sealed environment. The second one indicates the extent to which the device is waterproof. Number one number - dust - proof the second number - water - proof No protection without protection 1. Solid material that can withstand more than 50mm. The accidental touch of the hand can withstand a vertical drop of water. A solid material with a diameter of more than 12mm in diameter and no more than 80mm in length. Such as: the fingers can withstand a 15 ° direct injection of vertical Angle of the spray. A solid material with a diameter of more than 2.5 mm. Such as: tools or wire Can withstand a 60 ° direct injection of vertical Angle of the spray. A solid substance that can withstand more than 1.0 mm in diameter. Small wire can withstand any spray of water - allow limited entry. 5 dustproof, limited entry (no harmful accumulation). Can withstand low pressure water column ejection from any direction - allow limited entry. Dust is difficult to enter, completely dustproof. Can withstand strong water jets from any direction - allowing limited entry. 7 does not apply. Allow a short period of 0.15m-1m deep water for up to 30 minutes. 8 does not apply. Can be subjected to prolonged immersion under pressure. Knowledge of the waterproof grade of electronic products JIS (IPX) _