Introduction; Safety Precautions - GE Multilin 350 Operation & Maintenance Manual

The Manual Ground and Test Device is an auxiliary
removable device for use in POWER/VAC* Metal Clad
Switchgear Equipment during initial installation and at
normal maintenance periods. The function of this
device is to solidly ground the equipment manually as
well as permit various types of tests. A convenient
means of grounding a system is provided to
safeguard personnel who may be working on the
equipment. Exposed terminals can also be used for
applying high-potential test, measuring insulation
resistance to ground and phasing out cables.
A different Ground and Test Device is required for
each continuous current rating of: 1200, 2000 and
3000/3500/4000 amperes. In applying a Ground and
Test Device to a metal-clad unit, only the current
ratings need to be considered. Electrical insulation of
the device has been designed to include ratings from
4.16kV to 13.8kV.
The Manual Ground and Test Device and metal-clad
compartment have interlocks to prevent unsafe
operation. This device is often used during initial
installation and for trouble shooting, when the
possibility of making
Unfortunately, it is not possible to eliminate every
hazard with interlocks; therefore, it will be the
responsibility of the person using this device to
recognize the potential hazards while working on this
equipment and take adequate precautions. Refer to
Instruction Manual
Switchgear Types VM-4.16 and VM-13.8" before
inserting the Ground and Test Device.
These instructions do not purport to cover all details or variations in equipment nor to provide for every
possible contingency to be met in connection with installation, operation or maintenance. Should further
information be desired or should particular problems arise which are not covered sufficiently for the purchaser's
purposes, the matter should be referred to the General Electric Company.
To the extent required the products described herein meet applicable ANSI, IEEE and NEMA standards; but
no such assurance is given with respect to local codes and ordinances because they vary greatly.
* Registered Trademark of the General Electric Company
POWER/VAC*
MANUAL GROUND AND TEST DEVICE
TYPES PVV-1200, PVV-2000, PVV-3000
POWER/VAC* METAL-CLAD SWITCHGEAR
TYPES VM-4.16 AND VM-13.8

INTRODUCTION

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SAFETY PRECAUTIONS

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an error is greatest.
GEK-90209 "Metal-Clad
FOR
CAUTION: This device does not have interrupters or
a mechanism; therefore, it has no interrupting or
closing capability.
The Manual Grounding and Test Device is designed
to meet applicable ANSI Standards.
Proper installation and maintenance are necessary to
insure continued satisfactory operation of the device.
The following instruction will provide information for
placing the device in service and for maintaining
satisfactory operation. Since a clear conception of the
function of all parts is helpful in understanding the
operation during installation and maintenance
periods, a brief description of the design and
operating principles is also given.
CAUTION: Interlocks are provided for safety of the
operator and correct operation of the device. If an
interlock does not function as described DO NOT
MAKE ANY ADJUSTMENT OR FORCE THE DEVICE INTO
POSITION. CONTACT THE NEAREST GENERAL ELECTRIC
COMPANY INSTALLATION AND SERVICE OFFICE FOR
ADDITIONAL INSTRUCTIONS.
CAUTION: This device extends the primary terminals
of the switchgear through the front cover to make
them accessible for grounding and testing. Under
certain conditions these terminals may be at high
potential and could cause severe injury to the
operator if they are contacted.
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