In complex industrial environments or those exposed to atmospheric agents, choosing the right degree of protection for electrical systems is a strategic choice . Busbar trunking with IP66 and IP68 protection guarantees continuity, safety, and durability . In this article, we explore what these codes mean, which applications require high protection, and why Graziadio’s Isolsbarra technology is the ideal solution for outdoor installations or in harsh environments.
What is the IP protection rating?
The IP ( Ingress Protection ) degree of protection is a standard defined by the IEC 60529 standard , which indicates the level of protection of an electrical enclosure against the penetration of solid bodies and liquids.
It is made up of two numbers:
First digit: protection against solid objects
- The first digit (from 0 to 6) refers to protection against dust and solid objects.
Second digit: protection against liquids
- The second digit (from 0 to 8) indicates the protection against the ingress of water and other liquids.
Application examples
- IP66 guarantees total protection against dust and resistance to strong jets of water.
- IP68 ensures the same dust protection, with the addition of the ability to withstand prolonged immersion in water.
Why IP66 and IP68 are important in busbar trunking
In electrical distribution systems, especially when installed outdoors or in harsh environments, the degree of protection is crucial.
Typical applications
Graziadio busbar trunking with Isolsbarra technology offers high protection (up to IP68), designed for:
- outdoor installations without the need for additional coverings
- environments with the presence of humidity, dust or risk of flooding
- areas subject to direct solar radiation or tropical climates
Isolsbarra technology: individually insulated conductors
Graziadio ‘s Isolsbarra solution stands out for its use of individually insulated conductors , a technical feature that directly contributes to achieving high levels of protection.
Advantages of Isolsbarra technology
- Greater resistance to external agents
- Watertightness of the casing
- Continuity of service even in the event of partial damage to a driver
- Suitability for installation in environments with potentially explosive atmospheres
- UV protection and fire resistance , according to product regulations
Where is an IP66–68 busbar trunking useful?
Graziadio busbar trunkings with IP66–68 protection are suitable for environments classified as “aggressive”.
Common environmental conditions
- High humidity or risk of condensation
- High pressure washing (e.g. food plants)
- Presence of dust, chemical vapors or corrosive agents
- Exposure to atmospheric agents (rain, wind, sun)
Intended uses
- Outdoor industrial environments
- Plants in marine or tropical areas
- Tunnels, underpasses, underground areas
- Areas at risk of flooding
Fire resistance and continuity of service
In addition to protection from dust and liquids, Graziadio busbar trunking is designed to offer resistance to the spread of flame and, where required, fire resistance.
Regulatory requirements in case of fire
- 30 minutes for alarms and emergency lights
- 90 minutes for fire-fighting elevators, ventilation, sprinkler systems
Additional casings
For these applications, the ducts can be integrated into an additional protective casing that increases their thermal and mechanical resistance.
Outdoor installations: real-world examples
Here are some examples showing the effectiveness of IP66 and IP68 joints on Isolsbarra busbar trunking:
The concrete advantages of high protection
Long-term benefits
- Safety and reliability in critical environments
- Less need for preventative maintenance
- No additional cost for external coverings
- Maximum operational continuity even in extreme conditions
- Compliance with fire regulations
- Durability even in high-wear environments
Certified reliability Graziadio
Relying on Graziadio for the design and installation of IP66 or IP68 busbar trunking means choosing a certified, durable, and tested solution . Isolsbarra technology combines robustness and modularity, allowing for safe installations even in environments requiring the highest levels of protection.