本标准的范围是定义通过电力线、所谓的电力线宽带（BPL）设备以及低速物联网通信设备的高速（物理层大于100 Mb/s）通信设备的介质访问控制（MAC）和物理层（PHY）规范。本标准使用低于100 MHz的传输频率。它适用于所有类型的BPL设备，包括用于宽带服务第一英里/最后一英里连接（距离房屋小于1500米）的BPL设备，以及用于局域网（LAN）、智能能源/智能电网应用、交通平台（车辆）应用、物联网应用的建筑物中的BPL设备，以及其他数据分布（设备之间小于100米）。 本标准侧重于各类BPL设备均衡高效地使用电力线通信信道，定义不同BPL设备之间共存和互操作的详细机制，并确保可提供所需的带宽和服务质量。该标准解决了必要的安全问题，以提供用户之间通信的隐私，并允许将BPL用于安全敏感服务。根据国际标准化组织（ISO）开放系统互连（OSI）基本参考模型的定义，它仅限于数据链路层的物理层和介质访问子层。

The scope of this standard is to define medium access control (MAC) and physical layer (PHY) specifications for high-speed (>100 Mb/s at the physical layer) communication devices via electric power lines, so-called broadband over power line (BPL) devices as well as lower speed Internet of Things communication devices. This standard uses transmission frequencies below 100 MHz. It is usable by all classes of BPL devices, including BPL devices used for the first-mile/last-mile connection (<1500 m to the premise) to broadband services as well as BPL devices used in buildings for local area networks (LANs), Smart Energy/Smart Grid applications, transportation platform (vehicle) applications, Internet of Things applications, and other data distribution (<100 m between devices). This standard focuses on the balanced and efficient use of the power line communications channel by all classes of BPL devices, defining detailed mechanisms for coexistence and interoperability between different BPL devices, and assuring that desired bandwidth and quality of service may be delivered. The standard addresses the necessary security questions to provide privacy of communications between users and allow the use of BPL for security-sensitive services. It is limited to the physical layer and the medium access sublayer of the data link layer, as defined by the International Organization for Standardization (ISO) Open Systems Interconnection (OSI) Basic Reference Model.