Maximum Number of UTP Cables in Pipes

Depending on the diameter of the wire, the following table shows the number of cables that can be placed in a conduit pipe.

The following table applies to Ethernet cables:

• Cat 5e / Gauge 24 AWG / ɸ 5 mm
• Cat 6 / Gauge 23 AWG / ɸ 6 mm
• Cat 6a / Gauge 23 AWG / ɸ 7.62 mm

For a different gauge of Ethernet cable, or optical cable, or a different pipe diameter, see the explanatory calculation in this document. Maximum number of UTP Cables in pipes.

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How Many Lumens Do I Need?

Lumens is the measuring unit used to express the amount of light emitted by a given light source. In simpler words, Lumens tells you how bright a light is.

Lumen is crucial because it determines the brightness of the light. The higher the lumen rating, the brighter the light. The amount of lumens you need will depend on the room’s size and the light’s purpose. For example, a reading lamp may only need 300-500 lumens, while a large living room may need 1500-3000 lumens.

Area or Space * -- Choose Area or Space -- Workspace or garage Kitchen work areas Bathroom Home office Dining room Kitchen Dining room Living room Bedroom Hallway

Measure in foot the length of the area or space *

Measure in foot the width of the area or space *

Area/Space selected

Square foot

Foot candles / Square foot

Lumens - Min

Lumens - Avg

Lumens - Max

For more information you can read this article. Lumens Per Square Foot: Recommended Amount Needed for a Room

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How Many Kelvin Do I Need?

Kelvin (K) is the unit of measurement for thermodynamic temperature. In lighting, what you measure with the kelvin scales is the colour temperature of a given light.

This is based on the formula of Planck’s law defined by German physicist Max Planck in the 1900s.

The Kelvin scale in lighting goes from 1,000-10,000K, and its correlated color temperature goes from red to blue.

Kelvin is important because it affects the ambiance and mood of the room. Bulbs with lower Kelvin values (2700K-3000K) produce a warm, cozy, yellowish light that is perfect for bedrooms, living rooms, and dining areas. Bulbs with higher Kelvin values (3500K-5000K) produce a cooler, brighter, bluish-white light better suited for workspaces, kitchens, and bathrooms.

The chart illustrates the recommended Kelvin grade based on activity.

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