Erection procedure for HV switchgear (Part 1)

Erection procedure for HV switchgear (on photo: 150KV GI Electrical Substation extension in Greece, Atherinolakos Crete by PARALOS Engineering S.A.)

Important points

66kV/230kV GIS extension work (photo by Rotary Switchgear & Testing Pte. Ltd)

Before commencing erection of HV switchgear check that all connectionsare tight on busbars and on main circuits as well as auxiliary circuits.

Examine the insulation very carefully, because there have been reported cases of burned out connections due to failure to observe this precaution. Obvious faults such as distorted panel work, broken meter glass and damaged packing cases should be noted and immediate steps taken to rectify the damage or to return the equipment to the supplier or manufacturer.

After erection, steps must be taken to prevent deterioration of the equipment due to damp,dust or casual damage. Substations should be cleared out and locked fast and should not be used as a site office, store or workshop after the equipment has been installed.

When all erection and jointing work is complete the equipment must be inspected and thoroughly cleaned to remove cuttings of cable, spare nuts, washers, accumulations of dust or copper filings and tools which may have been left behind.

However, it is dangerous to blow out equipment because dust, filings, light metal scraps, rags and sawdust can be blown into positions where they become inaccessible and may pass unnoticed. It is better to clean manually and vacuum the plant.

An important point to remember is the removal of all packing materials particularly in moving parts, and of course make sure that oil circuit-breakers receive their first filling of water-free oil.

In the erection of the switchgear the following points should be emphasised.

Where steel channels are used as foundations, ensure that they are correctly laid to an accuracy of about ±1mm in 3 m. Use a masking strip to prevent fouling by the floor materials.

IMPORTANT: Read and apply the manufacturer’s erection instructions and use the correct tools such as torque spanners to obtain the appropriate tightness of nuts.

GIS Installation (photo by Rotary Switchgear & Testing Pte. Ltd)

Make sure equipment is properly aligned. This means vertically and horizontally in both longitudinal and lateral directions. Incorrect alignment causes problems during operation of mechanical linkages and connections, difficulty in removing and replacing circuit-breakers and other withdrawable parts and puts stress on interpanel connections such as busbars and earth bars.

When the floor is being laid and there are no steel inset channels, it should be level both front to back and should not vary by more than a millimetre or so between cubicle centres.

When the floor is being laid it is common practice to form pockets at the foundation hole positions in order to avoid having to cut them out of the solid floor at installation time. The floor should be marked out in accordance with the switchgear assembly drawings usually provided by the manufacturer to ensure that the switchgear is correctly located with respect to cable trenches, building walls and other equipment in the room.

A datum line requires to be established usually along the rear foundation bolts, and using normal geometric methods the switchboard and foundation bolt holes can be located.

The method of positioning the equipment is dependent on a number of factors such as equipment size, building location, site accessibility and lifting tackle available.

Lifting eyes are often either incorporated into switchboards or can be screwed into pre-machined holes, but generally slinging is necessary and this should be done strictly in accordance with the manufacturer’s recommendations. Without the use of cranes, however, the traditional manual methods utilising jacks and roller bars are effective.

Care must be taken not to exert pressure on weak parts such as control handles during this manhandling.

Instalation of GIS and Erection of GIB (VIDEO)

Cant see this video? Click here to watch it on Youtube.

Short Overview of LV Cable Terminations

Posted OCT 27 2012 by EDVARD in CABLES with 1 COMMENT

LV Cable terminations - Short Overview

A termination is the electrical and physical connection of a cable end to a piece of equipment or another cable. A splice is the electrical connection of a cable end to another cable with the same cable number.

Cable terminations (splices) are designed and installed to interconnect two cable ends bothelectrically and physically.

The physical requirements relate to mechanical security and environmental protection of the connection; the electrical requirements relate to current carrying capacity, connection voltage drop and compatibility of materials (e.g., thermocouple extension wire connections must join like conductor materials).

Soldered connections, wire-wrapping connections, crimp connections, compression terminations, and loop or ”eye” connections are the most common types of terminations used.

Correctly soldering electrical connection to an electrical wire.

In a soldered connection, the like conductorsof the cables are soldered together or into connectors to form a physically secure, low-resistance termination. Various solder lugs are available, ranging from a post with a round hole through which wire is passed to a”cupped” solder terminal. Solder terminations are infrequently used except when circular “military type“ connectors are used.

Wire-wrapping connections are connections in which the uninsulated solid conductor is wrapped with significant force about a rectangular metal post for several turns. The wrap is sufficiently tight to deform the post to result in a physically and electrically secure connection. This termination is seldom found for general application, but is often found internal to instrumentation and control equipment such as computers and multiplex panels.

This termination method is also popular for telephone circuit distribution boxes in which many small conductor (typically to 19 AWG or smaller) wires are terminated.

Crimp connections are connections using terminals having tubular openings into which the cable conductors are placed. The tube is then mechanically pressed or deformed to tighten it onto the conductor and form a connection.

The crimping is performed typically by a crimping tool specially designed for the termination. For nuclear safety-related circuits, the crimping tools are calibrated and are generally used under quality control supervision to ensure proper connections.

Hand crimping tool for insulated an uninsulated terminals and splices in wire sizes No. 22 to No. 10 AWG. It has a terminal locator to position insulated terminals during crimping and an in-nose cutter for tight locations. This tool is a wire stripper and has a built-in heavy duty bolt cutter.

Crimp connections are commonly available in butt splice, ring lug, and spade lug formats. Crimp connections are available in a wide variety of sizes and may be found in instrument, control, and power circuits.

Compression terminations are terminations in which the uninsulated conductor is inserted into a “box” and the connection is then made with a screw, a flat strap, or other such mechanism that compresses the conductor and forms the connection.

Low-voltage circuit breakers use this type of connection.

Loop or “eye” connection at screw terminals is the wrapping of an uninsulated conductor under the head of a screw and around its shank. This connection is inexpensive and is used where the connection would be infrequently disconnected. The conductor loop is made in the direction of screw tightening.

The Practical Skills Series – Cable Termination (VIDEO)

Cant see this video? Click here to watch it on Youtube.

Resource: Power Plant Practices to Ensure Cable Operability – Electric Power Research Institute

for your philippine electrical concerns...needs...installation...orders...safeelectrical2013@gmail.com

METRO MANILA PHILIPPINES

WIRE AND CABLE SUPPLIER IN METRO MANILA

WIRE AND CABLE SUPPLIER IN QUEZON CITY

ELECTRICAL WIRE AND CABLE SUPPLIER IN MAKATI PHILIPPINES

ELECTRICAL WIRE AND CABLE SUPPLIER IN TAGUIG PHILIPPINES

ELECTRICAL WIRE AND CABLE SUPPLIER IN MAKATI PHILIPPINES

ELECTRICAL WIRE AND CABLE SUPPLIER IN GLOBAL CITY PHILIPPINES

ELECTRICAL WIRE AND CABLE SUPPLIER IN MAKATI PHILIPPINES

ELECTRICAL WIRE AND CABLE SUPPLIER IN TAGUIG PHILIPPINES

ELECTRICAL WIRE AND CABLE SUPPLIER IN ALABANG PHILIPPINES

ELECTRICAL WIRE AND CABLE SUPPLIER IN GLOBAL CITY PHILIPPINES

WIRE AND CABLE SUPPLIER IN LUZON

WIRE AND CABLE SUPPLIER IN VISAYA

WIRE AND CABLE SUPPLIER IN SUBIC

WIRE AND CABLE SUPPLIER IN CLARK

WIRE AND CABLE SUPPLIER IN THE PHILIPPINES

ELECTRICAL SUPPLIER IN METRO MANILA

ELECTRICAL SUPPLIER IN QUEZON CITY

ELECTRICAL SUPPLIER IN LUZON

ELECTRICAL SUPPLIER IN VISAYA

ELECTRICAL SUPPLIER IN SUBIC

ELECTRICAL SUPPLIER IN CLARK

ELECTRICAL SUPPLIER IN PHILIPPINE INDUSTRIAL PARK

ELECTRICAL SUPPLIER IN PHILIPPINE ECONOMIC ZONE

ELECTRICAL SUPPLIER FOR PHILIPPINE FOREIGNERS

ELECTRICAL SUPPLIER FOR PHILIPPINE PROVINCES

ELECTRICAL SUPPLIER IN PHILIPPINES BATANES

ELECTRICAL SUPPLIER IN PHILIPPINES LAOAG

ELECTRICAL SUPPLIER IN PHILIPPINES CLARK

ELECTRICAL SUPPLIER IN PHILIPPINES SUBIC

ELECTRICAL SUPPLIER IN PHILIPPINES MANILA

ELECTRICAL SUPPLIER IN PHILIPPINES BATANGAS

ELECTRICAL SUPPLIER IN PHILIPPINES LEGASPI

ELECTRICAL SUPPLIER IN PHILIPPINES BORACAY

ELECTRICAL SUPPLIER IN PHILIPPINES PALAWAN

ELECTRICAL SUPPLIER IN PHILIPPINES PUERTO PRINCESA

ELECTRICAL SUPPLIER IN PHILIPPINES ILOILO

ELECTRICAL SUPPLIER IN PHILIPPINES BICOL

ELECTRICAL SUPPLIER IN PHILIPPINES CEBU

ELECTRICAL SUPPLIER IN PHILIPPINES BOHOL

ELECTRICAL SUPPLIER IN PHILIPPINES SURIGAO

ELECTRICAL SUPPLIER IN PHILIPPINES DUMAGUETE

ELECTRICAL SUPPLIER IN PHILIPPINES BACOLOD

ELECTRICAL SUPPLIER IN PHILIPPINES CAGAYAN DE ORO

ELECTRICAL SUPPLIER IN PHILIPPINES SURIGAO

ELECTRICAL SUPPLIER IN PHILIPPINES BUKIDNON

ELECTRICAL SUPPLIER IN PHILIPPINES ILIGAN

ELECTRICAL SUPPLIER IN PHILIPPINES ZAMBOANGA

ELECTRICAL SUPPLIER IN PHILIPPINES BUTUAN

ELECTRICAL SUPPLIER IN PHILIPPINES GENERAL SANTOS

ELECTRICAL SUPPLIER IN PHILIPPINES ZAMBOANGA

ELECTRICAL SUPPLIER IN PHILIPPINES DAVAO

ELECTRICAL SUPPLIER IN PHILIPPINES CAGAYAN DE ORO

ELECTRICAL SUPPLIER IN PHILIPPINES BINONDO

ELECTRICAL SUPPLIER IN MAKATI PHILIPPINES

ELECTRICAL SUPPLIER IN TAGUIG PHILIPPINES

ELECTRICAL SUPPLIER IN METRO MANILA PHILIPPINES

ELECTRICAL SUPPLIER IN MANILA PHILIPPINES

ELECTRICAL SUPPLIER IN NOVALICHES QUEZON CITY PHILIPPINES

ELECTRICAL SUPPLIER IN SAN JOSE DEL MONTE BULACAN PHILIPPINES

FOR YOUR PHILIPPINE ELECTRICAL CONCERNS...NEEDS...INSTALLATION...QUOTATION...ORDERS

KINDLY EMAIL US: SAFEELECTRICAL2013@GMAIL.COM

SAFEELECTRICALONLINE@GMAIL.COM

FOR YOUR PHILIPPINE ELECTRICAL CONCERNS...NEEDS...INSTALLATION...QUOTATION...ORDERS:

KINDLY EMAIL US: SAFEELECTRICAL2013@GMAIL.COM

SAFEELECTRICALONLINE@GMAIL.COM

FOR PHILIPPINE INQUIRIES LIKE LIGHTNING ARRESTER SUPPLY AND INSTALLATION

CONTACT US:

FOR PHILIPPINE INQUIRIES LIKE LIGHTNING ARRESTER SUPPLY AND INSTALLATION

CONTACT US:

FOR PHILIPPINE INQUIRIES LIKE LIGHTNING ARRESTER SUPPLY AND INSTALLATION

CONTACT US:

MOBILE NUMBERS: SMART: +63 09079522099

+63 09214026477

GLOBE: +63 09273919600

+63 09157920129

SUN: +63 9227192434

+63 09336253505

WIRELESS LANDLINE: +63 4068727

+63 4922566

LANDLINE: +63 4317553

HURRY..CALL US...NOW!!!!

THANK YOU FOR YOUR ORDERS AND INQUIRIES...

LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE PHILIPPINES

ELECTRICAL FENCE SUPPLIER AND INSTALLER IN THE PHILIPPINES

LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN METRO MANILA

ELECTRICAL FENCE SUPPLIER AND INSTALLER IN METRO MANILA

LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE PHILIPPINE ECONOMIC ZONE

ELECTRICAL FENCE SUPPLIER AND INSTALLER IN THE PHILIPPINE ECONOMIC ZONE

LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE VISAYA REGION

ELECTRICAL FENCE SUPPLIER AND INSTALLER IN THE VISAYAS REGION

LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE MINDANAO

ELECTRICAL FENCE SUPPLIER AND INSTALLER IN THE MINDANAO

FOR YOUR LIGHTNING STRIKE PROTECTION...LET US HELP YOU AVOID SUCH ACCIDENTS...

BEFORE IT IS TOO LATE...BEFORE IT IS TOO LATE...

WHEN LIGHTNING STRIKE HIT YOU..

I GUARANTEE YOU..YOU'LL NEVER LIVE TO TELL YOUR EXPERIENCE...

DON'T BE THE NEXT VICTIM...PROTECT YOURSELF..YOUR FAMILY..YOUR BUSINESS AT ALL TIMES..

INSTALL A LIGHTNING ARRESTER IN YOUR PLACE...DO IT NOW BEFORE YOUR CAUGHT UNAWARE...

IF YOU HAVE LIGHTING PROTECTION INSTALLED...

YOU'LL HAVE PEACE OF MIND...YOU CAN SLEEP WELL EVEN WHEN LIGHTNING STRIKES...

YOU KNOW YOUR WELL PROTECTED...

IN YOUR HOME, IN YOUR PLACE OF BUSINESS AND IN YOUR PROPERTIES...

HURRY..CALL US...NOW!!!!

THANK YOU FOR YOUR ADVANCE ORDERS AND INQUIRIES...

"PHILIPPINE FOREIGNERS AND PHILIPPINE PROVINCES ELECTRICAL SUPPLIER

AND SERVICE PROVIDER"

"SAFE ELECTRICAL SUPPLY AND SERVICES"

Jigz Enerio - Sales/Project Coordinator

Safe Electrical Supply and Services

Registered Master Electrician PRC#00034433

Real Estate Broker PRC#0000838

Institute of Integrated Electrical Engineers(IIEE)Membership#19420

Telephone: 4068727 4922566

Telefax: 4178583 4317553

smart: 09079522099

globe: 09273919600

sun: 09227192434

Building K-415 Smilecitihomes 1 Barangay Kaligayahan

Novaliches Quezon City 1124

YAHOO MESSENGER: SAFEELECTRICALSUPPLYANDSERVICES@YAHOO.COM

SAFEELECTRICALSUPPLYANDSERVICES

WEBSITE: WWW.SAFEELECTRICALSUPPLYANDSERVICES.BLOGSPOT.COM

"The Elevator to Success is always out of order,

but one can always use the stairs"

"One does not Lead by hitting people over the Head,

that's assault not Leadership" - Eisenhower

"If You Think Education is Expensive,

count the cost of being ignorant" - Past Harvard President

"If you're gonna be thinking anyway,

you might as well think big" - Donald Trump

"Insanity, doing the same things

over and over again,

then expecting a different result" - Albert Einstein

"Small minds talk of people,

average minds talk of events,

great minds talk of ideas"

“I shall pass this way but once; any good that I can do

or any kindness I can show to any human being;

let me do it now. Let me not defer nor neglect it,

for I shall not pass this way again.”

Etienne de Grellet (1773-1855);

Quaker missionary

If you wanna make the world a better place

take a look at yourself and make a change

- Michael Jackson

"The Best things in life are FREE,

Family, Relatives, Friends, Health and most especially Time"

Our company operates in the principle of cooperation, collaboration,

joint partnership/marketing and cross promotion.

We treat our people,clients,suppliers,affiliates

subcontractors, business owners, entrepreneurs(SMALL TIME or Bigtime),

common people,sales people especially PURCHASING OFFICERS as our business partners and friends.

We operate in the principle of Win-Win in every transactions we get involved in

and our company would like to establish good long-term relationship with the client we serve...

We value and aim for REPEAT BUSINESS...and not just for a one-time transaction...

Delivery Schedule: 9am to 10pm Monday to Friday Only

OFFICE DAYS: Monday to Friday Only

9-12PM TO 1-5PM ONLY

Saturday: Lord's day "EL SHADDAI" The God who is more than enough

Sunday: Family day

10% of what the company earns, we give to the Lord,

10% of what the company earns, we give to charity,

this is the company's way of giving back part of what it earns,

to the community and above.

"It is unwise to pay too much, but it's worst to pay too little.

When you pay too much, you lose a little money - that is all...

When you pay too little, You sometimes lose everything,

Because the thing you bought or the service you acquired

was incapable of doing the thing it was bought or intended to do.

The common law of business balance

prohibits paying a little and getting a lot - it can't be done.

If you deal with the lowest bidder,

It is well to add something for the risk you run,

And if you do that,

You will have enough to pay for something better."

- JOHN RUSKIN(1819 - 1900)

"Good things aren't cheap,

and cheap things aren't good"

HEALTH TIPS HEALTH TIPS HEALTH TIPS HEALTH TIPS HEALTH TIPS HEALTH TIPS

ATTENTION: FOR ALL INDIVIDUALS ESPECIALLY THOSE AGE 40 AND ABOVE.

MEDICAL EXPERIMENT - MIRACLES WITH WATER

Japanese Sickness Association has published the following experiment with WATER.

They Claim 100% success for curing old and new diseases as follows:

1. Headache, BP, Anaemia, Arthrosis, Paralysis, Palpitation, Epilepsy and Obesity

2. Cough, Bronchitis, Asthma, and Tuberculosis

3. Meningitis and any other diseases connected with URINE and LIVER.

4. Hyper-acidity, Gastritis, Dysentery, Constipation, Piles and Diabetes

5. Any other diseases connected with Eye, Nose and Throat.

6. Irregular menstrual periods of women

METHOD OF TREATMENT AND MAINTENANCE:

1. Wake-up early morning and drink Four(4) glasses (160ml each) in an empty stomach.

Thereafter, no solids or liquids should be taken up to 45 minutes.

2. Normal breakfast can be taken after the 45 minutes time elapsed.

3. Nothing either liquid or solid should be taken for Two(2) hours after breakfast, the same as with Lunch and Dinner.

4. After Dinner nothing should be taken before bedtime or sleep.

Sick and old people will find it difficult to drink Four(4) glasses of water at an instant in the beginning, but, can increase

gradually to the recommended level in a short time period.

Experiment has proved that the following diseases have been cured on treatment of water for the period shown against them

a) Hypertension - 30 days d) Constipation - 10 days

b) Gastric Problems - 30 days e) Cancer - 6 months

c) Diabetes - 30 days f) Tuberculosis - 3 months

Those who suffering from Arthritis should try this experiment three(3) times a day for one(1) week and thereafter reduce to

once in the morning. For first few days you may experience to pass urine more than the norma, but no side effects.

THIS WILL CLEANSED YOUR BODY OF IMPURITIES AND WILL

PREVENT MANY TYPES OF DISEASES...

EXERCISE RELIGIOUSLY...

AS THE SAYING GOES "HEALTH IS WEALTH"

REMEMBER:

70% of our body is made up of water...

only 30% of our body is solid...

HEALTH IS WEALTH...

WHAT'S THE USE OF HAVING A BILLION

BUT LYING IN A BED - SICK

OR SUFFERING FROM AN ILLNESS.....

I WOULD RATHER HAVE A CLEAN BILL OF HEALTH FOR A BILLION.

WHEN YOU REACH THE AGE OF 35 EXERCISE IS A MUST...

WATCH YOUR DIET...

EXERCISE DAILY AND RELIGIOUSLY

TAKE YOUR MULTIVITAMINS TO SUPPLEMENT YOUR FOOD INTAKE....

THE BEST THINGS IN LIFE ARE FREE.....

FAMILY....RELATIVES....FRIENDS....HEALTH and most importantly TIME....

YOU ARE MORE BLESSED THAN OTHERS...

WHEN YOU HAVE BOTH YOUR EYES SO YOU CAN CLEARLY SEE

OTHERS HAVE ONLY ONE...OTHERS ARE TOTALLY BLIND...

WHEN YOU HAVE BOTH YOUR EARS SO YOU CAN CLEARLY HEAR

OTHERS HAVE ONLY ONE...OTHERS ARE TOTALLY DEAF...

WHEN YOU HAVE BOTH YOUR HANDS SO YOU CAN HOLD THINGS WELL

OTHERS HAVE ONLY ONE...OTHERS HAVE NONE...

WHEN YOU HAVE BOTH YOUR FEET SO YOU CAN WALK EASILY

OTHERS HAVE ONE...OTHERS HAVE NONE..

WHEN YOU STILL HAVE YOUR PARENTS...

OTHERS HAVE ONE...OTHERS HAVE NONE...

WHEN YOU HAVE CHILDREN...

OTHERS HAVE ONE...OTHERS HAVE NONE...

WHEN YOU HAVE A FAMILY...

SOME HAVE NONE...OTHERS TOTALLY ORPHANED

WHEN YOU ARE LIVING IN THE PHILIPPINES...A DEMOCRATIC COUNTRY..

THE WEATHER NOT THAT EXTREMELY HOT NOR COLD..

WERE PLANTS AND TREES GROW EASILY

SURROUNDED BY SEAS FULL OF FISHES AND NATURAL RESOURCES

WHEN YOU ARE OLD AND STILL LIVING WITH YOUR CHILDREN

IN SOME COUNTRIES OLD PARENTS AND PEOPLE

ARE LEFT IN THE "HOME OF THE AGED NURSING FOUNDATION"

WHEN YOU STILL HAVE YOUR JOB...WORKING IN AN AIR-CONDITIONED

ROOM..JUST CONSIDER THE CONSTRUCTION WORKERS DOING THEIR

HARD LABOR JOBS UNDER THE HEAT OF THE SUN...IGNORING THE

DANGEROUS ELEMENTS CONFRONTING THEM....

COUNT YOUR BLESSINGS...COUNT THEM ONE BY ONE...

DON'T THINK OF SAYING ANY UNKIND WORD...

THINK OF PEOPLE WHO CAN'T SPEAK,

DON'T COMPLAIN ABOUT THE FOOD YOU EAT,

SOME HAVE NOTHING.

DON'T COMPLAIN ABOUT LIFE,

PAINT A SMILE ON YOUR FACE

AND THANK GOD YOU'RE ALIVE AND STILL AROUND

LIFE IS A GIFT......

LIVE IT WELL......

SAFETY 1ST

REPEAT BUSINESS 2ND

PRAY ALWAYS IT WORKS!!!

ATTENTION: FOREIGN ELECTRICAL MANUFACTURERS AND ELECTRICAL DISTRIBUTORS

OUR COMPANY WELCOMES ELECTRICAL FOREIGN SUPPLIER/MANUFACTURER/S

WHO WOULD LIKE TO OFFER THEIR PRODUCT LINE

HERE IN THE PHILIPPINES BUT ON A CONSIGNMENT BASIS ONLY,

MEANING PAYMENT WILL BE FOR A CERTAIN PERIOD...EXAMPLE SIX(6) MONTHS TO ONE(1) YEAR,

ALL THOSE ITEMS THAT WILL NOT BE SOLD OR SLOW MOVING ITEMS WILL BE REPLACED

AND WE WILL JUST PAY FOR THOSE SOLD ITEMS

YOUR COMPANY WILL BE SHOULDERING THE FORWARDING/FREIGHT COST

OR SHIPMENT COST...

WE WILL BE IN CHARGE OF STOCKAGE,MARKETING,SALES AND AFTER SALES CONCERNS..

CONTACT,EMAIL OR CALL US IF YOUR COMPANY IS INTERESTED WITH OUR OFFER...

BY THE WAY PAYMENT WILL BE BANK TO BANK...

YOUR BANK WILL BE COORDINATING WITH OUR LOCAL BANK HERE IN THE PHILIPPINES....

CALL/EMAIL US IF YOUR COMPANY IS INTERESTED ON OUR OFFER....

"YOUR FRIENDLY PHILIPPINE FOREIGNERS AND PHILIPPINE PROVINCES ONLINE ELECTRICAL SUPPLIER"

Sunday, September 15, 2013