An IP55 rated enclosure means that your equipment is protected from dust, dirt, non-corrosive substances and oil. However, an IP55 enclosure is not airtight. It only penetrates dust size elements in non-harmful quantities. IP55 certifications make your enclosure water-resistant but not waterproof. The first digit rating (5) means the enclosure is not fully closed off to dust.The second digit rating (5) means the enclosure might not be waterproof. IP55 rated enclosure protects from low-pressure water jets.
Below are the following protections could IP55 enclosure provides:
- Protection from dust, oil, dirt, and non-corrosives
- Protection from moving parts and voltage for people contacted with the enclosure
- Protection from water, such as water sprayed from nozzles to the enclosures
IP55 enclosures are manufactured from high quality materials. They are available in carbon steel, galvanised steel, aluminium and stainless steel. We offer customised solutions for IP55 enclosures. It can be customised with insulation, cut-outs, latches, hinges or locks. IP ratings between 44 and 65 are suitable for general outdoor and indoor use. IP ratings lower than 44 should use only indoors.
There are various processes to get certifications and testing for IP55 enclosure. We can do IP55 enclosure testing according to IEC EN 60529 standard.
Types of IP55 Testing
- IP55 dustproof testing
- IP55 waterproof/rainproof testing
1. IP55 Dustproof Testing Method
A dust chamber is used to test the enclosure.
The talcum powder needs to maintain the suspension through an air current.
This chamber must contain a powder weighing 2 kg per cubic meter in terms of volume.
The talcum powder must pass through a 50-um diameter square-meshed wire and 75 u m nominal free distance.
2. IP55 Waterproof/Rainproof Testing Method
The second digit IP rating is tested with the 6.3mm nozzle.
The enclosure is sprayed from all practicable directions with a water streams from standard nozzles.
Conditions to be observed
- 6,3mm nozzle’s internal diameter
- 12,51/min±5% delivery rate
- Water pressure
- Approximately 40mm diameter substantial stream circle core at 2.5 m distance away from the nozzle
- 3 minutes minimum test duration
5m and 3m distance of enclosure from the nozzle
Zhongfeiya is a manufacturer specialising in the production of high quality electrical enclosures in accordance with IP55 standards. With over 10 years of experience in the design and manufacture of electrical enclosures, ZFY offers customised solutions based on customer requirements. For more information, please contact us today!
