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Building Electrical Engineering FAQs — WR2, Rising Mains, Switchboards and Pumps

50 Owners’ Corporation, property management and the most frequently consulted building electrical maintenance, five-year electricity inspection and water pump control system queries and answers

FAQ

YAT FULL ENGINEERING Directory of Common Problems

Since its establishment in 2002, YAT FULL ENGINEERING has been working on the electricity and water pump system for nearly five hundred Hong Kong buildings. The following collation of the most frequently raised issues by the client is based on the Electricity Regulations (Chapter 406), the Electrical and Mechanical Services Department publishes information and the Building Property Management Regulations (Chapter 344), which assists you with the faster control of WR2 and the focus of electrical construction.

Company & Services WR2 Inspections WR1 & Regulations Rising Mains Replacement Switchboard Replacement Electrical Maintenance Pump Maintenance Emergency Repairs Commercial, Industrial & Schools Quotes & Tenders
Company & Services

With regard to Yat Full and scope of services

Awareness of the Hong Kong Electric and plumbing Engineering Corporation, established in 2002

What are the services that YAT FULL ENGINEERING provides primarily?

YAT FULL ENGINEERING CampRepair of the main electrical system(including WR2 electric installations regularly checking related works), electrical rising mains replacement, building main switchboard replacement, replacementWater pump control system and water pump system maintenanceAlternatively provided CCTVandSolar SystemsEngineering, with a 24-hour emergency repair and regular maintenance service, all services are available.Services。

Yat Full is a Hong Kong electrical and plumbing engineering company?

Yat Full was established at the beginning of 2002 and is based on the new Kwai Chung, the initial installation of the new building, the installation of the electricity system, the construction of schools and the government hospital, and the construction of the two-fourth to two-and-five-year transfer facility, the maintenance of the electricity system (WR2) and the water pump control system, and the direct tender for Owners’ Corporation and property management company backgrounds from seven years.About。

Yat Full How many building electrical engineering experience?

Yat Full has maintained electrical and pump systems in around 500 buildings. In over 70 of them, the electrical rising mains and main switchboards were replaced together. Since 2003, we have installed over 500 intelligent digital pump systems, with no unit failures recorded to date. For photographs of our work, seeElectricity Systems Engineering caseandWater pump system engineering case。

What amount of work can be contracted by Yat Full?

As a small engineering company, Yat Full reduces unnecessary costs and focuses on electrical and pump projects valued at up to HK$2 million, matching the practical needs of most individual residential, commercial and industrial buildings.

What are the areas covered by Yat Full services?

Yat Full, based on Kwai Chung, provides electricity and water pump works for the building industry in the Hong Kong Regions on a long-term basis and can quickly support the emergency repair and maintenance projects in the New Territories and in the Nineon Region.Contact。

What are the differences between the copper display and our services?

「ServicesDescription of the content and application of the various types of engineering services;ProjectsThe pumps showcases of the field works of electricity, water pump, CCTV and solar energy systems to facilitate client reference to the construction quality.

WR2 Periodic Test

WR2 Electricity Inspection and 5-year Electricity Inspection

Cycle, scope, time frame, cost of contracting and common questions for periodic check-ups of electrical devices

What is WR2?

WR2 is Electrical and Mechanical Services Department designated in accordance with the Electricity (Travel) Regulations, Test Certificate Form number. Fixed power devices are regularly checked and tested by registered electrical worker and are issued by registered electrical contractor, and only some of the devices are subject to the WR2-related services, which Yat fully performs.Building Electrical Maintenance。

The building is patient to conduct a WR2 electric examination?

Under the Electricity (Wiring) Regulations, fixed electrical installations in ordinary buildings with an approved loading exceeding 100 amperes, or in factories and industrial undertakings with an approved loading exceeding 200 amperes, mustA minimum of five yearsA check-up, testing and receipt of a certificate, known as a five-year electric curve, was also collated on the first page.WR2 Inspections。

Which units are to be checked once a year?

Public entertainment sites, places where dangerous goods are manufactured or stored, and fixed high-pressure power installations are requiredAnnualConduct an inspection and test.

WR2 is it necessary for schools, hospitals and hotels to do whatever their load?

Yes, hotels, hospitals or restaurants, schools, early childhood centres, and Electrical and Mechanical Services Department indicate that establishments that may cause a serious disaster in the event of an electrical accident are subject to periodic inspection and testing every five years, regardless of the allowable load of a fixed power device.School Electricity ProjectQuestion and answer.

Who is responsible for organizing the building of a fixed-term examination of the power plant?

The owner of a fixed power unit is responsible for ensuring the safety of its electrical installations and correcting problematic areas, and the owner, including individual unit owners, property management companies and Owners’ Corporation, is responsible for organizing regular inspections and testing. Yat fully supports Owners’ Corporation and property management.Property Management Services。

WR2 What is the scope of the electricity examination?

All fixed cables and associated electrical equipment, including main cables (main switchboard), electrical rising mains routes, electrical appliances, final electrical circuits and fixed power equipment, should be included in the scope of regular inspections, tests and certifications, so that WR2 inspections are often assessed.Rising Mains ReplacementandSwitchboard ReplacementThe best time needed.

WR2 certificates will be received after the completion of the inspection?

After completion of testing, registered electrical contractor is requiredOne monthIssuance of periodic Test Certificate (WR2) for electrical installations.

WR2 is it necessary for WR2 to switch to the IEC? What is the cost?

The owner of the power plant is required to be issued by WR2.Within two weeksInsert the certificate to the Electrical and Mechanical Services Department at each additional costPK$695The owner may also request the relevant registered electrical contractor to be presented.

Knowing the building to do WR2 in some cases?

Electrical and Mechanical Services Department is reminded of the owners of the electrical installations (including owners and Owners’ Corporation), prior to the expiration of the existing WR2 certificate, or before the deadline for testing the electrical installations that have not been submitted to WR2, Owners’ Corporation is also able to retrieve the date of the last WR2 certificate; if the contents of the letter are questioned, it is open to 1823.Contact Yat FullEarly arrangements.

If the building did not do WR2?

Electrical and Mechanical Services Department personnel conduct regular astronaut inspections, if the building owner does not arrange regular check-ups and tests for fixed-power installations, and there is a risk that the lack of proper maintenance of the electrical installations will result in an accident of electricity, a disruption of the electricity supply will affect everyday life, subsequent maintenance costs may be higher than regular maintenance, and the owner may have a third party ' s claim.

WR2 found defects at the time of inspection?

It is the responsibility of the owner to correct the location where the electrical installation is problematic, and the defects are to be repaired or replaced before being checked and tested for accreditation. Yat Full sets out the defects and priorities, offers a full quotation price and can carry directly the electrical rising mains, main switchboards and reconfiguration works, such as the electrical appliances, and Owners’ Corporation does not need another contractor for further details.Repair of the main electrical system。

WR2 examines the need to stop electricity?

Partial testing projects are to be carried out in the context of interfering of power sources, and therefore there is a general need to arrange sub-divisions or short suspensions. Yat Full will coordinate pre-concession with Owners’ Corporation or property management, and recommends early posting of circulars to reduce the impact on household, lift and water pump operations.

WR2 Electricity Screening Point?

WR2 ' s inspection costs are based on a number of factors, including the size of the building and the availability of negative loads, main switchboards, appliances and circuits, the completeness of the last WR2 and the length of work, as well as the need for re-engineering works. Yat Full will offer sub-statements after learning about the situation on the ground.Contact。

WR1 & Regulations

WR1 Completion Certificate and Electricity Engineering Regulations

What is the contractor ' s qualifications needed to build electrical engineering after completion?

WR1 and WR2 are separate?

WR1 is a plutonium completion certificate and a new installation, fitting, retrofitting or maintenance of a fixed power unit shall be performed by a registered electrical workerPre-concessionAfter inspection and testing, Form WR1 is issued. Users should keep it safely but do not need to submit it to EMSD. Form WR2, the Periodic Test Certificate, covers periodic inspections of specified electrical installations and must be submitted to EMSD for endorsement within two weeks of issue. In simple terms, WR1 certifies completed work, while WR2 certifies a periodic inspection.

Is the replacement of electrical rising mains or main switchboard required WR1?

Repair or reconfiguration of fixed-power installations, such as replacement of electrical main switchboards, is required. According to the Electricity (Travel) Ordinance, the responsible registered electrical worker is required to check, test and issue the completion certificate (WR1) after completion of work and before the electricity is made available for use.

Is the building electrical engineering available to any electric worker?

It is not possible that only a registered electrical worker who is employed by a registered electrical contractor, or a registered electrical worker who is employed by a fixed-power owner in full-time and fixed-wage form, will be able to work for the installation. The registered electrical contractor shall display a certificate of registration at the place of business and a registered electrical worker shall be accompanied by a certificate of registration.

Have the nuclear power engineering company registered electrical contractor ?

The registration certificate contains the contractor ' s registration number, the date of registration, the name and address of the company, prior to the appointment of any electrical engineering company, recommended Owners ' Corporation to conduct a pre-emptive review, either on the basis of a regional search or through a hard copy of the list of districts at the Advisory Service Centre of the General Administration of Civil Affairs.

Rising Main

Electric rising mains replacement common problem

Core works for the renovation of the power system in the old building -- Yat Full has been completed for more than seventy buildings and the replacement of electrical rising mains and main switchboards

What is electrical rising mains?

Electrical rising mains is the building main switchboard, which runs vertically across all floors, and the main cables supplied to each branch of the cable and household unit, which is part of the building of a public power facility, with the owner of the public power plant, including Owners’ Corporation and the property management company.

What is the need for electrical rising mains to replace?

Frequently, the WR2 inspection report lists the main electrical rising defects; insulation or receptacle heating; building frequent or low electric pressure; electrical rising mains capacity is not sufficient to meet current household chillers and electrical appliances; households apply for increased electricity supply restrictions; electro-rooms or piped water infestations, recommending arrangements.Rising Mains ReplacementAssessment.

What are the design requirements for electrical rising mains in the old building?

The Code of Practice of Electrical and Mechanical Services Department ' s Electricity (Travel) Regulations stipulates that any building above four levels (including underground) shall be equipped with three different electrical rising mains and each layer of three linears, with the consent of the supplier.

What is the replacement process for electrical rising mains?

General processes include: on-site surveying and recording of existing lines; recalculation of building power load; design of replacement programmes and provision of quotations; completion of procurement procedures by Owners’ Corporation under the Building Property Management Regulations; coordination of power park arrangements with electricity companies and households; phased construction; completion of post-completion inspections, testing and issuance of WR1; and re-opening of electricity, with the number of buildings, the scope of construction and the electricity company, and Yat as full as possible.

Electric rising mains Replacement of the price point?

The costs are based mainly on the number of building blocks and units, the number of electrical rising mains capacity and specifications, the circuit route and pipe condition, the simultaneous replacement of main switchboards and plumber cables at various layers, power cuts and construction requirements, etc., and Yat Full offers sub-quotations after on-site surveys and calculations of loads, as illustrated by the engineering caseElectricity Systems Engineering case。

Main Switchboard

Building main switchboard replacement and maintenance issues

The fault of electrical cables, appliances, the timing of replacement and the risk of leakage of cables

What is building main switchboard?

The building main switchboard (also known as cables, main cables) is located in the building of a cable house, which is the general switch and protection unit after the power company is powered, which is responsible for the distribution of electricity to electrical rising mains, elevation machines, water pumps and public lighting.

What are the main switchboards common faults?

Common problems include: tide corrosion of parts in the rubble of the cable water leakage order; rubble or protective devices; tearing of the mother ' s line and the receptacle; inadequate capacity leading to frequent fodder; and burns, symptoms or flue in the chromium.

What is the need for building main switchboard replacement?

Replacement should be considered if the main switchboard is classified as defective in the WR2 examination, the spare parts have ceased to be repaired, the capacity was not sufficient to match the rising electrical mains to replace or increase the burden.Switchboard ReplacementThe replacement of the electrical rising mains can be planned and the refurbishment of the electricity system has been completed once.

There are several risks of leakage of cables?

It is very dangerous that the second-and-five-year-old hides building in the Gulf of Great Britain and Northern Ireland caused the explosion of 1600A cables as a result of the leakage of electrical dams; the second-and-hong raying of the second-and-hong-century fluctuation of 2 500A cable explosions as a result of the leakage of electrical dams, both of which should be carried out emergency repairs as soon as well as possible and check of the main switchboards.Emergency recovery performance。

Can the main switchboard apply for temporary electricity at the time of the damage?

Temporary power can be requested to the electricity company, and the actual arrangements are subject to the approval and on-site conditions of the electricity company, as in the case of the 2002-05 German building accident, when Yat Full applied to the electricity company for an immediate application of 1200A3 for temporary electricity, building for the restoration of basic electricity as soon as possible, and replacement of a new 1600A ter.

Maintenance

building electrical maintenance and maintenance of electrical systems

Maintenance of the building ' s electricity, maintenance of the public power system, alteration and renovation of the electrical system

What are the public power installations included?

Public power installations include general switch cables and circuit cables, electrical lines (e.g. electrical rising mains) for all residential units and merchants, as well as other public electrical installations, such as elevators, water pumps, and lighting facilities in the canteens, buildings and corridors.

What benefits are the maintenance of the regular electricity system?

The regular maintenance of fixed-power installations would help to ensure the reliability of the electricity supply, prevent electrical accidents and protect the property industry. If the electrical installations are not properly maintained, there may be an accident of electricity, a break in the supply of electricity, and subsequent maintenance costs may be higher than regular maintenance.

What are the tasks involved in the maintenance of the public power system?

Common work includes the main switchboard and the maintenance of the branch cables, the replacement of blockers and leakproof protection devices, the maintenance of public corridors and stairs of light circuits, water pumps and lift circuit checking, improvement of the relay system, cleaning and marking of electrical kitchen equipment and follow-up to deficiencies identified by WR2 inspections.Maintenance of the building electricityServices.

What are the changes in the electricity system and the refurbishment of the electricity system?

The reconfiguration of the electrical system generally refers to partial changes or additions, such as the installation of light circuits, the installation of power lines for new equipment or the replacement of part of the cables; the refurbishment of the power system is the overall upgrading of the old electrical installations, such as main switchboard, electrical rising mains and the replacement of sub-divisional cable boxes, which are to be tested and issued by registered electrical workers.

Can a fixed-term electricity and water pump maintenance contract be signed?

It is possible that Yat Full has, since 2002, set up a repair and maintenance team to specialize in the maintenance of the water pump system and the electricity system, and may establish regular maintenance arrangements as required by the building.Property Management Services。

Pump System

Water pump control system and water pump system maintenance

Intelligent digital water pump system, common fault and collaboration with electrical engineering

What is water pump control system?

The water pump control system is the electrical control disk and associated sensors that control the building of water pumps, beating water pumps, etc., and is responsible for automatically launching and halting water pumps, rotating operations and providing various protective functions at water levels, which are key to the stability of the water supply.

What benefits are there intelligent digital water pump system?

Since 2003, Yat Full has used intelligent digital pump systems that immediately identify the cause of a fault, allowing prompt repairs and reducing disruption to residents’ water supply. Over 500 systems have been installed, with no unit failures recorded to date. SeePump System Engineering。

What are the common problems of building water pump?

Common problems include pump breakdowning, inadequate or unstable water pressure, frequent start-up of water pumps, bursts, run-up or shock, water-sensitivity disorders, water fluctuating or drying, which may originate from electrical, water pump or control systems, which are subject to diagnosis by professionals and can be arrangedPump Maintenance。

Would water pump system maintenance and building electrical engineering be done together?

Water pump can be supplied from the building of public power installations, Yat Full, with expertise in both electricity and water pumps, and can plan the maintenance of the water pump system in conjunction with the main switchboard, electrical rising mains, etc., to reduce duplication of power cuts and coordination among multiple contractors.Water pump system engineering case。

Emergency

24-hour Emergency Repairs

The building should be done when electricity is parked, main switchboard faults, pump breakdowning machines?

Yat Full provided 24 hours emergency repair? How long did Yat Full provide?

Yes. Yat Full has established 24-hour maintenance services at the time of its opening and is committed to doing so.Within two hoursOn arrival, emergency hotline 3165 8142For further details.24-hour Emergency Repairs。

What should be the immediate emergency repair?

Electrical emergency repairs are provided immediately to the building, either on the part or on a full-scale suspension of electrical power, flash or symptoms of the cable, after the main switchboard cannot be reinstated, the power plant is smoked or damaged, the water pump empty or the water supply is interrupted. If there is a risk of cigarette, fire alarm or physical danger, please call electricity.

Sectors

Business, engineering and school power projects

Different types of inspection cycle and construction arrangements

What needs to be noted in commercial electricity projects?

Commercial buildings with an approved loading exceeding 100 amperes require a WR2 electrical inspection at least once every five years. Commercial electrical works should minimise disruption to tenants, usually through work outside office hours or phased shutdowns, with advance notice.

What needs to be taken into account in the construction of electric power?

Fixed power installations located in factories or industrial sites, which allow a load of more than 200 tranquillities to be inspected at least once every five years, are subject to an annual inspection if the place of manufacture or storage of dangerous goods or has a high pressure device, and industrial building has a high load, main switchboard and electrical rising mains capacity planning are particularly important.

What needs to be noted in the school electricity project?

Schools and early childhood centres are subject to periodic inspection and testing every five years, regardless of the amount of the load allowed, and school power works are generally required to cooperate with the leave work to ensure that inspections, refurbishments and tests are completed prior to the commencement of the school, and Yat Full ' s construction of the additional electricity work was carried out at the initial stage of the establishment, as detailed below.Construction of residential, commercial, craft and school electricity。

Quotation & Tender

Engineering quotations, Owners’ Corporation quotations and cooperation processes

Follow-up to queries, bids, tenders to completion

How can the job be claimed?

Telephone 3165 8142E-mail ip@yat-full.com, or completedContact tablesAddress: New Community Kwai Chung Tai Lin Pai Road 103-113 Kwai On Factory Building 1219-1224.

What information is needed before the request for proposals?

It is recommended that: the number of places and properties, buildings and units, the previous WR2 certificate, the Electrical and Mechanical Services Department remind (if any), the existing electricity circuit map (if any), the description of problems and photographs, and the budget and timetable of Owners’ Corporation be more complete and the price is more accurate.

Would Owners’ Corporation request for tendering for the Commission ' s Electricity Engineering Corporation?

In accordance with regulation 20A of the Building Property Management Regulations, Owners’ Corporation purchases worth more than 200,000 yuan or 20 per cent of the annual budget of Owners’ Corporation, whicheverever is smaller, are subject to tendering; for example, over 20 per cent of the annual budget of Owners’ Corporation, it is decided by the General Assembly of Owners that the adoption of the regulations for management of construction property in 2024 and for the further introduction of major civil service in type II.

What is the follow-up to the completion of the work?

Upon completion, inspections and tests will be carried out to issue WR1 or to cooperate with WR2 procedures by the nature of the work, and to hand over to Owners’ Corporation or property management and to provide post-accident follow-up reports.Regular maintenance arrangements。

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WR2 Term expires? There are problems with electrical rising mains or main switchboard?

Electricity 3165 8142 or the completion of search forms, and the YAT FULL ENGINEERING team provided you with answers to the question of building electrical engineering and offers the price.

Call 3165 8142 Request a Quote
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