Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
D2219-21 – Standard Test Method Technical Guide
The ASTM D2219-21 standard defines the specifications for poly(vinyl chloride) (PVC) insulation used in wire and cable applications, optimized for 60 °C operation. This insulation is suitable for wet or dry locations with a maximum voltage rating of 600 V for power and control circuits. The standard ensures material quality through defined physical and electrical tests developed in accordance with international standardization principles.
📐 Physical Properties and Requirements
The insulation must comply with the physical properties outlined in Table 1, including aging tests in air and oil at specified temperatures and durations, and a vertical flame test per Test Method D8354. These properties ensure the insulation’s durability and flammability resistance. All testing on insulation material should be performed on insulated wire or cable to accurately assess the material properties, as the material cannot be tested alone. For terminology definitions, refer to Terminology D1711.
| 🟦 Property | 📐 Requirement | 📏 Test Method |
|---|---|---|
| Aging in Air | As specified in Table 1 | D2633 |
| Aging in Oil | As specified in Table 1 | D2633 |
| Vertical Flame Test | Pass | D8354 |
⚡ Electrical Testing and Voltage Withstand
The electrical requirements include AC voltage withstand, insulation resistance, and DC voltage tests, which must be performed in the sequence specified in Section 5.1. The AC voltage test uses the withstand voltage from Table 2, with insulation thickness depending on conductor size. For single-conductor cables in underground ducts or direct earth burial without a thermoplastic jacket, add 15 mils (0.38 mm) to the insulation thicknesses in Table 2. Ensure that for mechanical stress conditions like vertical risers, the minimum conductor sizes in Table 2 are adequate to prevent failure.
| 🔌 Installation Type | 📏 Insulation Thickness | ⚡ AC Withstand Voltage |
|---|---|---|
| Aerial or Conduit | As per Table 2 | As per Table 2 |
| Underground Duct or Direct Burial | Add 15 mils (0.38 mm) to Table 2 | As per Table 2 |
Tip: Perform electrical tests in the order specified: AC voltage first, then insulation resistance, followed by DC voltage. This sequence is critical for accurate assessment.
Warning: The AC voltage test can be omitted if the DC voltage test is conducted, per Section 5.2. However, confirm project specifications for clarity.
❓ Frequently Asked Questions
🔍 What is the scope of ASTM D2219-21?
This standard covers thermoplastic insulation using PVC or copolymer of vinyl chloride and vinyl acetate for wire and cable, rated for 60 °C operation and 600 V maximum in wet or dry locations.
💡 How are physical properties tested?
Physical properties are tested per Table 1, including aging in air and oil at specified conditions, and a vertical flame test per D8354. Tests are performed on insulated wire or cable.
⚡ What is the thickness adjustment for underground cables?
For single-conductor cables in underground ducts or direct earth burial without a thermoplastic jacket, add 15 mils (0.38 mm) to the insulation thicknesses in Table 2.
📌 What is the maximum operating temperature?
The insulation is designed for conductor temperatures not exceeding 60 °C, suitable for both wet and dry locations.