VDE 0212-473 DIN VDE 0212-473 2017-07 PDF

Full title and description

DIN VDE 0212-473 / VDE 0212-473:2017-07 — Fittings for overhead lines — Part 473: Connecting bolts (German title: Armaturen für Freileitungen — Teil 473: Verbindungsbolzen). This document specifies requirements for connecting bolts intended primarily for overhead electrical lines and for switchgear and controlgear with nominal system voltages above AC 1 kV and DC 1,5 kV. It updates and replaces the earlier DIN 48073:1975-02.

Abstract

This part of the DIN VDE 0212 series defines dimensions, mechanical characteristics and related mounting/assembly details for connecting bolts used in overhead-line fittings. The 2017 revision extends size ranges, updates pin/split-pin requirements, removes certain legacy bolt forms and obsolete strength classes, and harmonises designation and length values for improved interchangeability and safety in high-voltage overhead-line applications.

General information

• Status: Current / valid standard (national DIN VDE publication).
• Publication date: 1 July 2017 (2017-07).
• Publisher: DIN in cooperation with VDE (VDE Verlag / DKE at DIN and VDE).
• ICS / categories: 29 — Electrotechnology; includes subcategories such as 29.020, 29.030, 29.035, 29.040, 29.050, 29.060, 29.080, 29.100, 29.120, 29.130, 29.140, 29.160, 29.180, 29.200, 29.220, 29.240, 29.260, 29.280.
• Edition / version: Edition 2017-07 (DIN VDE 0212-473:2017-07).
• Number of pages: 8 pages.

Scope

The standard applies to metallic connecting bolts intended for use in fittings for overhead power lines and related electrical plant where nominal voltages exceed AC 1 kV or DC 1,5 kV. It specifies sizes, tolerances, representative lengths, mechanical strength considerations and the applicable requirements for associated securing elements (e.g., split pins). The 2017 revision expands the size range (adds connecting bolt size 16), adjusts specified lengths, updates the split-pin standard reference, removes the former bolt form N and omits the S marking, and discontinues the 5.6 strength class.

Key topics and requirements

• Designation and dimensional requirements for connecting bolts (including the added size range such as bolt 16).
• Specified reference lengths and tolerances (adjustments made to length "l" values in the 2017 revision).
• Mechanical properties and strength class requirements (removal of strength class 5.6 in this edition).
• Requirements for securing elements and their standards (updated split-pin specification).
• Removal of legacy bolt form N and elimination of the S marking — simplification of form/marking scheme.
• Intended application limits: overhead-line fittings and switchgear for networks above AC 1 kV / DC 1,5 kV.
• Conformance, interchangeability and safety considerations for installation in overhead-line systems.

Typical use and users

Engineers, designers and manufacturers of overhead-line hardware and fittings; utilities and transmission/distribution companies specifying components for medium- and high-voltage overhead lines; procurement and quality assurance teams checking component conformity; test laboratories verifying mechanical characteristics; standards committees and technical authors who reference national requirements for connecting bolts.

Related standards

This part is one document in the DIN VDE 0212 series (Fittings for overhead lines). It replaces DIN 48073:1975-02. Other parts of DIN VDE 0212 and standards developed by the DKE committee K 421 (Overhead lines) are relevant for complementary requirements, and national/international standards for line fittings, fasteners and connector testing should be consulted where applicable.

Keywords

connecting bolt; Verbindungsbolzen; overhead lines; fittings; Freileitungen; bolt dimensions; split pin; strength class; DIN VDE 0212; DKE/K 421; high-voltage accessories.

FAQ

Q: What is this standard?

A: DIN VDE 0212-473:2017-07 is the national standard specifying connecting bolts for fittings used on overhead power lines and in associated electrical equipment for nominal voltages above AC 1 kV and DC 1,5 kV.

Q: What does it cover?

A: It covers dimensions, designation, mechanical requirements, applicable securing elements (for example split pins), and related marking/design decisions specific to connecting bolts used in overhead-line fittings. The 2017 edition updates sizes, lengths, and certain normative references and removes obsolete forms and a redundant strength class.

Q: Who typically uses it?

A: Manufacturers of overhead-line hardware, electrical utilities, design engineers, procurement and QA personnel, and test laboratories verifying conformity of connecting bolts for medium- and high-voltage overhead applications.

Q: Is it current or superseded?

A: This document (DIN VDE 0212-473:2017-07) is the valid edition published on 1 July 2017 and replaces DIN 48073:1975-02. Users should confirm whether any later amendments or newer editions have been issued since 2017 before specifying components for new projects.

Q: Is it part of a series?

A: Yes — it is Part 473 of the DIN VDE 0212 series (Fittings for overhead lines). Other parts in the series address different types of fittings and accessories for overhead-line systems.

Q: What are the key keywords?

A: Connecting bolt, Verbindungsbolzen, overhead-line fittings, Freileitungen, bolt dimensions, split pin, strength class, DIN VDE 0212, DKE/K 421.