Differences NYA, NYM, NYAF, NYMHY, NYY, and NYYHY Electrical Cables

In the electrical industry, electrical cables play a vital role as a medium for transmitting electrical energy. Each type of cable is designed with distinct characteristics, depending on the conductor material, type of insulation, number of conductors, and installation environment. These differences determine the cable’s current-carrying capacity, safety level, and service life.

Some of the most commonly used cable types in Indonesia are NYA, NYM, NYAF, NYMHY, NYY, and NYYHY. At first glance, their names appear similar, but their functions and applications are very different. Here is a detailed explanation.

1. NYA Cable

Meaning of the NYA cable code:

• N = Copper conductor
• Y = PVC insulation
• A = Single-core (solid)

NYA cable is a single-core copper cable coated with a single layer of PVC insulation. This cable is widely used in residential electrical installations and distribution panels, but it must be installed inside a pipe or conduit.

Common NYA cable sizes range from 1.5 mm² to 2.5 mm², with insulation color options such as red, yellow, blue, and black to facilitate circuit identification.

Advantages:

• Simple structure and easy to pull
• Relatively economical price
• Stable current-carrying capacity

Disadvantages:

• Only a single layer of insulation
• Not weather-resistant or rodent-resistant
• Must not be installed exposed

Buy NYA cable from Wilson Cables brand here.

2. NYM Cable

Meaning of the NYM cable code:

• N = Copper conductor
• Y = PVC insulation
• M = Multi core (more than one conductor)

NYM cable has multiple copper conductors, each individually insulated, and is covered by an outer PVC sheath. This cable is commonly used in permanent electrical installations within buildings, both inside and outside walls.

NYM cables typically have 2, 3, or 4 conductors, including a grounding conductor. The outer sheath is usually white or gray.

Advantages:

• Double insulation provides greater safety
• Suitable for both dry and damp areas
• Neater installation

Disadvantages:

• Must not be buried directly in the ground
• Higher price compared to NYA

Buy NYM cable from Wilson Cables brand here.

3. NYAF Cable

Meaning of the NYAF cable code:

• N = Copper conductor
• Y = PVC insulation
• A = Single core
• F = Flexible (stranded)

NYAF cable uses a fine-stranded copper core, making it highly flexible. This cable is not intended for permanent installations but rather for applications requiring high flexibility.

NYAF is commonly found in electrical panels, control panels, and automation systems.

Advantages:

• Highly flexible
• Easy to install in tight spaces
• Ideal for control panels

Disadvantages:

• Not suitable for permanent installations
• Requires additional protection

Buy NYAF cable from Wilson Cables brand here.

4. NYMHY Cable

Meaning of the NYMHY cable code:

• N = Copper conductor
• Y = PVC insulation
• M = Multi core (more than one conductor)
• H = Flexible
• Y = PVC sheath

NYMHY cable is a flexible multi-core cable with a thin PVC sheath. This cable is widely used for portable electrical and electronic equipment.

Examples include light machinery, household appliances, and mobile electrical equipment.

Advantages:

• Flexible and lightweight
• Easy to move
• Suitable for non-permanent equipment

Disadvantages:

• Not resistant to heavy mechanical loads
• Not suitable for permanent installations

Buy NYMHY cable from Wilson Cables brand here.

5. NYY Cable

Meaning of the NYY cable code:

• N = Copper conductor
• Y = PVC insulation
• Y = PVC outer jacket

NYY cable features thick black PVC insulation and jacket, making it highly resistant to weather, water, and mechanical stress. This cable is used for permanent outdoor electrical installations or for direct burial in the ground.

NYY cables typically have 2 to 4 conductors, with a stiffer construction and resistance to rodent bites.

Advantages:

• Very strong and safe
• Can be buried in the ground
• Resistant to extreme weather

Disadvantages:

• Less flexible
• Relatively expensive

Buy NYY cable from Wilson Cables brand here.

6. NYYHY Cable

Meaning of the NYYHY cable code:

• N = Copper conductor
• Y = PVC insulation
• Y = PVC sheath
• H = Flexible
• Y = Additional sheath

NYYHY cable combines the strength of NYY cable with the flexibility of stranded cable. This cable is used for industrial machinery, installations with high vibration, and harsh working environments.

Advantages:

• Resistant to pressure and vibration
• More flexible than NYY
• Suitable for industrial needs

Disadvantages:

• Higher price
• Used for specialized applications

Buy NYYHY cable from Wilson Cables brand here.

Conclusion

The differences between NYA, NYM, NYAF, NYMHY, NYY, and NYYHY cables lay in the number of cores, type of insulation, level of flexibility, and installation environment. Choosing the right cable will determine the safety, efficiency, and reliability of the electrical installation.

The best way to ensure a safe and standard-compliant installation is to use SNI-certified electrical cables from Wilson Cables, designed to meet needs ranging from residential to industrial applications.