Selecting the correct type of electrical cable is a fundamental step in any construction or renovation project. Safety, compliance, and performance all hinge on this critical choice. Among the various options, NMD-90 and NM-B wires​ are two of the most commonly specified types for residential and commercial building wiring. While they share similarities, understanding their key differences is essential for

When planning an electrical project, whether it’s a home renovation, a new construction, or an upgrade, choosing the correct type of cable is crucial for safety, compliance, and performance. Two common terms you’ll encounter in residential and commercial wiring are NM cable​ and NM-B cable. While they look similar, understanding their differences is key to a successful and code-compliant installation.

When selecting the right electrical cord for lamps, appliances, or seasonal lighting, you’ve likely encountered the terms SPT-1, SPT-2, and SPT-3. These designations refer to specific types of “Service Parallel Thermoplastic” (SPT) cords, commonly known as lamp cords or zip cords. While they may look similar at a glance, critical differences in their construction determine their safety, capacity, and suitable

Choosing the right electrical cable is critical for safety, performance, and compliance. Two common specifications that often cause confusion are T90 nylon jacketed cable​ and TWN75 building wire. While they may look similar, they are designed for different environments and standards. This guide breaks down their differences, applications, and helps you decide which one is right for your project. What

When specifying building wire for construction, industrial, or commercial projects, two common designations you’ll encounter are T90​ and THHN. While they are often mentioned together and can look very similar, they are not interchangeable. Understanding the precise relationship between T90 and THHN is crucial for selecting the right product for safety, code compliance, and performance. This guide breaks down what

Selecting the correct wire type is critical for the safety, performance, and code compliance of any electrical installation. Two common types, MTW and THHN, are often used in industrial and commercial settings but serve distinct purposes. A fundamental difference lies in their construction: MTW cable typically does not have an overall nylon jacket, whereas THHN cable does.​ This guide from