1. Introduction to UL1007 Standard

UL1007 is a globally recognized wire standard certified by Underwriters Laboratories (UL), a leading global safety science organization. This standard covers single-core PVC insulated cables and wires, commonly referred to as “hook-up wire,” designed specifically for the internal wiring of electronic and electrical equipment. The designation “1007” refers to UL’s specific style number under the Appliance Wiring Material (AWM) category, governed by the comprehensive UL 758 standard.

UL1007 wire is classified as Appliance Wiring Material (AWM) and has become the industry standard for low-voltage internal wiring applications. The wire features PVC (Polyvinyl Chloride) insulation over stranded or solid tinned copper conductors, providing excellent flexibility, durability, and electrical reliability for a wide range of electronic applications. Source: UL Solutions – AWM Testing and Certification

2. UL1007 Technical Specifications

2.1 Core Electrical Parameters

UL1007 wire undergoes rigorous testing to meet UL 758 requirements, including the VW-1 vertical flame test which ensures the wire self-extinguishes within 30 seconds after flame removal. This critical safety feature prevents fire propagation in electronic assemblies. The wire is also dual-rated with UL1569 for gauges 14 AWG and below. Source: Eland Cables – UL1007 Technical Reference

3. AWG Conductor Specifications

3.1 Complete AWG Size Table

UL1007 wire is sized according to the American Wire Gauge (AWG) system, ranging from 30 AWG (thinnest) to 16 AWG (thickest) for standard configurations. Lower AWG numbers indicate thicker conductors capable of carrying higher currents. The following table provides comprehensive conductor specifications for all available sizes.

* Maximum current ratings are approximate values for single conductors in free air at 30°C ambient. Actual ratings depend on installation conditions and should be derated accordingly. Source: Farnell – UL1007 Datasheet

3.2 Color Code Reference

UL1007 hook-up wires are available in multiple standard colors for easy circuit identification. The asterisk (*) in the RDS number should be replaced with the appropriate color code reference:

Additional colors and striped combinations are available upon request for specialized applications requiring extended color coding systems.

4. UL1007 Construction and Materials

4.1 Conductor Construction

UL1007 wire conductors are manufactured from high-purity copper, available in either bare or tinned configurations. Tinned copper conductors are preferred for most applications due to enhanced solderability and corrosion resistance. The tinning process applies a thin layer of tin over the copper strands, which acts as a catalyst during soldering operations and provides protection against oxidation.

Conductors can be either stranded (multiple thin wires twisted together) or solid (single wire). Stranded conductors offer superior flexibility and resistance to metal fatigue from repeated bending, making them ideal for applications requiring cable routing through tight spaces. Solid conductors maintain their shape better and are preferred when wires need to hold position or be pushed through difficult-to-reach areas. Source: WesBell Electronics – UL1007 Wire Guide

4.2 PVC Insulation Properties

The PVC insulation provides a uniform thickness that ensures consistent electrical properties and facilitates easy stripping and cutting during installation. The material offers good dielectric strength while remaining flexible enough for routing through complex electronic assemblies. Source: ZGSM Wire Harness – UL1007 Complete Guide

5. UL1007 vs. Similar Wire Standards Comparison

5.1 Comprehensive Comparison Matrix

Understanding the differences between UL1007 and related wire standards is essential for selecting the appropriate wire for specific applications. The following comparison highlights key distinctions between commonly used UL-rated hook-up wires.

5.2 Selection Guidelines

When choosing between UL wire standards, consider the following criteria:

Source: Mid America Wire & Cable – UL1015 vs UL1007

6. Applications and Use Cases

6.1 Primary Applications

UL1007 wire is designed for factory-installed internal wiring within the enclosures of electronic and electrical equipment. The wire’s specifications make it suitable for a wide range of applications requiring reliable, low-voltage connections.

6.2 Limitations and Restrictions

UL1007 is designed specifically for internal wiring applications and has certain limitations that must be observed:

7. Testing and Quality Standards

7.1 Required Tests per UL 758

UL1007 wire must pass a comprehensive series of tests to receive UL certification. These tests verify the wire’s safety, durability, and electrical performance under various conditions.

The VW-1 (Vertical Wire) flame test is particularly critical for UL1007 certification. In this test, a flame is applied to a vertically mounted wire specimen for 15 seconds, removed for 15 seconds, and repeated five times. The wire must self-extinguish within 60 seconds total, and any burning particles must not ignite cotton placed below the specimen. Source: Eland Cables – UL 758 Standard Reference

7.2 Wire Marking Requirements

All UL1007 wire must be clearly marked with identification information printed directly on the insulation. Standard markings include:

8. Product Offerings

8.1 UL1007 Wire Types Available

Anhui Feichun Special Cable Co., Ltd. supplies UL1007 hook-up wires in two primary configurations based on voltage and temperature ratings:

Note: The 600V/105°C version follows UL1015 specifications while maintaining compatibility with UL1007 applications. Both products are available in all standard colors and custom stripe combinations upon request.