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What Are SPT-1 Cables Used For In Household Appliance Wiring?

Zhengfeng Nov 26,2025

When you're browsing stylish table lamps or choosing a portable floor lamp for your living room in a North American home furnishing store, few people pay attention to the power cord connecting the lamp to the power source. But this seemingly insignificant cable directly determines the safety, durability, wiring flexibility, and even whether it meets the entry requirements of the North American market – it's the SPT-1 cable, a flexible wiring solution specifically designed for table lamps and floor lamps in home lighting scenarios.

I. The Core Positioning of SPT-1 Cable: Exclusive Fit for Table Lamps and Floor Lamps

The SPT-1 cable is a classic model in the North American flexible cable standard, primarily used in low-power home lighting equipment, especially suitable for table lamps and floor lamps that require flexible wiring, frequent relocation, or long-term use. Unlike the rigid wiring inside building walls, the SPT-1 cable emphasizes "flexible fit + safety and durability," perfectly solving the pain points of using table lamps and floor lamps:

Precise Fit for Table Lamp Scenarios:
Table lamps are often placed in small spaces such as desktops and bookshelves, requiring wiring that balances "space-saving" and "stretch resistance." SPT-1 cables are extremely flexible, easily wrapping around desktop edges, folding lamp structures, and even adapting to adjustable-angle cantilever lamps—even with repeated bending, the conductor won't break or the insulation layer will crack. Furthermore, desk lamps are usually close to people (frequent hand contact and desktop friction), and SPT-1's high abrasion resistance coefficient can withstand daily wear and tear, preventing the risk of leakage.

Core Advantages for Floor Lamp Scenarios:

Floor lamps have higher mobility requirements (e.g., changing location between the living room and bedroom), and the cable may be stepped on or dragged. SPT-1 cables use a thickened PVC insulation layer (standard thickness 0.8mm), offering excellent resistance to compression and tension, maintaining insulation integrity even after prolonged pressure from furniture or slight dragging. Simultaneously, its lightweight design doesn't add extra burden to the floor lamp base, ensuring stability and preventing tipping due to excessive cable weight.

lamp cord spt-1 wire

II. Core Performance Parameters of SPT-1 Cables: Why is it the First Choice for Lighting Wiring?

To meet the needs of table lamps and floor lamps, the performance parameters of SPT-1 cables have been precisely optimized. The following are key indicators to focus on when purchasing in the North American market:

Conductor Specifications: Mainstream is 18AWG (US gauge), copper core purity ≥99.9%, stable conductivity, meeting the low-power supply needs of table lamps (5-40W) and floor lamps (10-60W), without causing safety hazards due to overheating.

Insulation Material: Made of environmentally friendly PVC material, RoHS compliant, suitable for home indoor environments; the insulation layer has a flame-retardant rating of UL VW-1, quickly self-extinguishing upon contact with open flame to prevent the spread of fire.

Rated Parameters: Rated voltage 300V, rated temperature 105℃, adaptable to the low indoor temperatures of North American winters and able to withstand the slight heat generated by prolonged lamp operation (without softening or deformation).

Structural Design: Dual-core parallel structure (commonly used for live wire + neutral wire), with a thin wire diameter, taking up minimal space during wiring and harmonizing well with the slender design of table lamps and floor lamps.

III. North American Market Purchasing Threshold: UL Certification is a Must
For lighting manufacturers and buyers in the North American market (mainly the United States and Canada), UL certification for SPT-1 wires is an insurmountable requirement. The North American Electrical Safety Standard (NFPA 70) clearly stipulates that household flexible electrical wires entering the market must pass UL (Underwriters Laboratories) compliance certification. The core basis is:
UL 62 Standard: General safety requirements for flexible cables, covering 12 core indicators such as insulation temperature resistance, flame retardancy, and withstand voltage testing. SPT-1 wires must pass key tests such as 75℃ long-term aging test and 1500V withstand voltage test. UL 1581 standard: Test methods for the physical and electrical properties of wires and cables. It requires that the insulation thickness uniformity error of SPT-1 wires be ≤±10%, and the conductor DC resistance be ≤7.32Ω/100m (18AWG), ensuring product consistency. SPT-1 wires without UL certification cannot clear North American customs and cannot be sold in mainstream home improvement channels such as Walmart and Home Depot. If non-compliance is found, companies will face huge fines and may even be blacklisted from the market. Therefore, "UL certification" is the primary standard for North American buyers to select suppliers and a core endorsement of product safety and compliance.

IV. Guangdong Zhengfeng Wire&Cable,UL file NO. E526188:

Professional Solutions for UL-Certified SPT-1 Wires Facing the stringent requirements of the North American market and the customized needs of lighting companies, Guangdong Zhengfeng Wire&Cable, with 25 years of experience in flexible wire production, has become a reliable supplier of SPT-1 wires.

Its core advantages lie in two dimensions: "compliance" and "customization": Full Range of UL Certification Guaranteed Zhengfeng Wire&Cable's power flexible wires cover multiple specifications including SPT-1/SPT-1W, SPT-1/SPT-2W, and SPT-3, all of which have passed full UL 62 and UL 1581 certifications. Each batch of products comes with a UL label, which can be verified through the UL website. From raw material procurement (copper core, PVC particles) to production processes (extrusion, cabling), and finished product testing (pressure resistance, flame retardancy, aging tests), the entire process follows UL standards, ensuring 100% compliance with North American market access requirements. Flexible Customization Services to Adapt to Lighting Fixture Designs Zhengfeng Wire&Cable understands the significant differences in design needs among different lighting brands. Therefore, we offer a full-process customization service "from packaging to specifications":

Packaging Customization: Supports roll, spool, and carton packaging.

Quantity Customization: Supports various quantities such as 1000ft/spool, 1830m/spool, 2135m/spool, and 610m/roll. We can also cut strips according to customer processing requirements.

Color Customization: Standard colors include white, black, green, and brown. Some customers choose transparent or golden yellow. We can accurately match colors based on the color cards provided by the customer to enhance the overall design of the lighting fixture.

Dual Guarantee of Quality and Delivery:

Zhengfeng Wire&Cable has an independent testing laboratory. In addition to initial inspection and random inspection on the production line, our quality personnel conduct a series of quality inspection processes on each batch of wires, including insulation thickness testing, to prevent unqualified products from leaving the factory. For North American customers, we can cooperate with FOB, CIF, and other trade terms, and ship quickly through Shenzhen and Guangzhou ports, ensuring fast delivery.

Choosing the Right SPT-1 Cable: Balancing Safety and Design For the North American home lighting market, SPT-1 cables are not just "universal accessories," but rather "core carriers of safety and experience"—the flexible wiring of table lamps and the durability of floor lamps both rely on their performance support; and UL certification is the "passport" for products entering the North American market.

Guangdong Zhengfeng Wire&Cable, with its UL certification, customization capabilities, and stable quality control, has become the preferred supplier of SPT-1 cables. Whether you are a lighting manufacturer, home furnishing purchaser, or cross-border e-commerce seller, you can find solutions tailored to your needs here—from specifications to packaging colors, everything is customized to your requirements, ensuring products are both compliant and safe, and fit your design concepts.

If you need to obtain the UL certification report for SPT-1 cables, a customized quote, or learn more about adaptation cases, please contact the business team of Guangdong Zhengfeng Wire&Cable directly for one-on-one professional consultation!

 

Guangdong Zhengfeng Wire&Cable Co., Ltd.

Tel/WhatsApp/WeChat: +86 138 2929 2517 / +86 147 4930 7879
Email: manager01@wire-cablemanufacturer.com

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