Why is this important in AV?

1. Outdoor AV

This is probably the most obvious application.

Examples:

• Outdoor LED walls

• Digital signage

• Outdoor displays

• Outdoor speakers

• PTZ cameras

• AV-over-IP equipment in outdoor enclosures

• Stadium AV

• Theme parks

• Outdoor hospitality systems

For example, specifying an IP65-rated loudspeaker instead of an indoor IP20 speaker can make a major difference in reliability.

2. Dust and construction environments

IP protection isn't only about rain.

AV equipment installed in:

• Industrial facilities

• Warehouses

• Manufacturing plants

• Mining environments

• Transportation facilities

• Construction sites

can be exposed to significant dust and particulate matter.

A normal indoor AV enclosure may allow dust to enter through ventilation openings, potentially affecting:

Fans → filters → power supplies → electronics → connectors → long-term reliability

This is particularly important for LED displays and outdoor digital signage, where dust accumulation can also affect thermal performance.

3. Humidity and moisture

Even when equipment isn't directly exposed to rain, environments such as:

• Swimming pools

• Spas

• Marine environments

• Coastal locations

• Food-processing areas

• Outdoor hospitality

can have high humidity or water exposure.

The AV professional should therefore consider IP rating together with corrosion protection, rather than treating IP rating as the complete environmental specification.

4. Safety and project compliance

This is where IP compliance becomes particularly important for professional AV design.

If a project specification says: "All equipment installed outdoors shall be minimum IP65."

Then installing an IP20 product inside an improvised box isn't automatically equivalent.

You need to consider:

• Enclosure rating

• Cable glands

• Connectors

• Cable entries

• Ventilation

• Door seals

• Mounting orientation

• Drainage

• Condensation

• UV exposure

• Temperature

• Corrosion

The complete installed assembly must maintain the required environmental protection.

5. IP rating should be part of the AV design specification

For professional AV projects, I would recommend adding an Environmental Requirements section to the equipment specification.

For example:

Outdoor AV equipment: Minimum IP65 enclosure protection, UV-resistant construction, suitable operating temperature range, corrosion-resistant hardware, and weatherproof cable entry system.

For indoor equipment:

Indoor AV equipment: Minimum IP20 unless otherwise specified.

For particularly harsh environments, IP rating alone isn't enough. You may need additional requirements such as NEMA enclosure rating, IK impact rating, corrosion resistance, operating temperature and humidity limits. (This can be change according to local infrastructure rules and regulations standard of the region)

One important point for AV Professionals

IP rating is not the same as weatherproofing.

For example, an IP65 device may be:

• Dust-tight

• Protected against water jets

but that doesn't automatically mean it is suitable for:

• Direct sunlight

• Extreme heat

• Salt air

• Condensation

• Freezing temperatures

• UV exposure

• Physical impact

So, an AV specification should ideally consider: IP + IK + UV + temperature + humidity + corrosion + installation environment.

There are several common myths about IP (Ingress Protection) ratings across the general industry, and some of them are particularly dangerous in AV, lighting, automation, and outdoor installations.

In short: IP compliance is not just a manufacturer's marketing specification. For an AV professional, it is an environmental design requirement that can directly affect equipment reliability, warranty, safety, maintenance and system lifetime.