Siemens 8DJH User Manual

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 65/121
Installation
➭ Optionally: Mount voltage sensors (see page 72, "Installing voltage sensors").
➭ Carefully coat the push-on surfaces (high-quality joints) of the cable plugs and the bushings
with the delivered mounting paste (see scope of supply of the cable plugs).
➭ Push the cable plugs ① to ③ onto the bushings and mount them according to the
manufacturer’s instructions. Observe the phase sequence.
NOTE: A too high torque can cause damage to the bushing. Tighten the cable plug with a
torque according to the manufacturer's instructions (max. 50 Nm).
➭ Mount the upper part of the cable clamps ⑥ .
➭ Align the cable bracket and bolt it tight.
➭ Refit the cross member, see page 77, "Removing and mounting the cross member".
➭ Connect the earthing cables of the plug housings and the cable shield at the cross
member ⑦ .
➭ Hook the cable compartment cover in again, see page 76, "Removing and mounting the
cable compartment cover".
✔ The cable connection is completed.
Double cables and surge
arresters
Double cables and surge arresters can be connected to the following panel types using the
corresponding plug-in cable systems:
• Ring-main panel
• Cable panel
• Circuit-breaker panel
Please observe the following:
• Depending on their type, double cable connections require a deep cable compartment cover
and larger floor openings.
• Depending on their type, surge arresters also require a deep cable compartment cover.
For further information, see page 16, "Cable connection".

Siemens 8DJH Specifications

General

Brand	Siemens
Model	8DJH
Category	Switch
Language	English

Summary

Safety Instructions

Signal Terms and Definitions

Explains DANGER, ATTENTION, NOTE, and symbols used in the manual.

General Safety Guidelines

Covers essential instructions, safety rules, and hazardous substances for safe operation.

Qualified Personnel and Due Application

Switchgear Description

Panel Types and Configurations

Switchgear Components

Three-Position Switch-Disconnector

Features and operating mechanism of the three-position switch-disconnector.

Vacuum Circuit-Breaker Type 2

Features, operating function, and mechanism of the vacuum circuit-breaker.

Interlocks and Safety Features

Technical Data and Specifications

General Electrical and Environmental Data

Covers insulation levels, currents, frequencies, ambient conditions, and protection degrees.

Switching Capacities and Classifications

Details switching capacities for disconnectors, circuit-breakers, and fuse combinations.

Installation Procedures

Transport, Storage, and Unpacking

Installation and Fastening

Floor Openings, Fixing Points, and Earthing

Electrical Connections

High-Voltage Cable Connection

Safety precautions and procedures for connecting high-voltage cables to the switchgear.

Commissioning

Pre-Energization Checks

Applying Operating Voltage and Energizing

Steps for energizing feeders, verifying connections, and applying operating voltage.

Switchgear Operation

Indicators and Control Elements

Operating Procedures

Safe Isolation Verification

Verification using HR/LRM Sockets

Procedure for verifying safe isolation using HR/LRM plug-in sockets.

HV HRC Fuse-link Replacement

Fuse Replacement Procedure

Cable Testing

Cable Plug Testing

Cable Sheath Testing