answersLogoWhite

0

High voltage testing is performed to confirm the integrity of a cable's insulation. It is always carried out after a new cable has been installed and terminated, or whenever a new joint is installed.

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

How do you test the 11KV HT cables?

The test equipment used to test high voltage cables is a hi-pot test where a high DC voltage is a applied to the cable. This voltage can be from 150% to 200% of the working voltage of the cable.See related links below.


How do you use a meggar?

A megger is used to test the resistance of high voltage cables, insulation and motor windings. The test employs a megohm meter.


What is a high pot voltage test?

'High-pot' is short for 'high potential', and it is also the trade name of a high-voltage test set used for testing the integrity of the insulation of high-voltage cables and other equipment prior to putting them into service, or following maintenance.


What do you use to mark the high voltage cable?

Why is use the triangle system in high voltage cables


What are the names for high voltage power cables?

Electrical conductors


The high-voltage section of a unit substation contains devices called to which the incoming high-voltage cables are terminated?

potheads


What color of cables represents high voltage in hybrid vehicles?

Black.


What is expected life span of high voltage underground cables?

10yrs


Define methods of stress control in high voltage cables?

A method of stress control is controlling the distribution of dielectric stress. Uniform distribution of dielectric stress may be achieved in high voltage cables by surrounding the high stress areas of the high voltage cable with a tube of high permittivity material that makes contact at one end with a ground electrode contacting the shield of the high voltage cable.


What is the optimum insulation resistance for 11kV UGcables when tested by 5000v insulation megger?

High voltage cables with this high an insulation factor are usually given a Hi Pot (High Potential) test and not meggered. The potential has to be higher that the working voltage of the cable to be effective when checking for insulation or connector breakdown.


When splicing high voltage cables what is the minimum distance between splices?

30 cm


What is hi pot testing?

'Hi-pot' is short for 'high potential'. So, a 'hi-pot' test is a 'high-potential' test, and is used to test the insulation resistance of electricity-supply equipment, such as underground cables, etc. It does this by subjecting the insulation to a continuous (d.c.) over-voltage for a given period of time. The magnitude of the test voltage, and the duration of the test, is laid down by the standards that apply to the electrical components being tested.