Electrical Installation Code Singapore

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Electrical Installation Code Singapore

• Title of Code
• - Code of practice CP 5 1998 Electrical
  Installation
  
• - Code of practice CP 88 Part 1 2001 Temporary
  Electrical Installations For Construction
  Building Sites
  
• Date of the latest version
• - CP 5 in 1998
• - CP 88 Part 1 in 2001

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Electrical Installation Code Singapore

• Organization responsible for maintaining the
  Code
  
• a. Published Updated by
• Standards, Productivity and Innovation Board
• b. Enforcement agencies
• SS CP 5 Energy Market Authority of
  Singapore Power Supply Ltd
  
• (public electricity supplier)
• SS CP 88 Pt 1 Energy Market Authority
  Ministry of Manpower

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Electrical Installation Code Singapore

• Key contact person
• Energy Market Authority of Singapore
• Mr Ng Kong, Director (Inspectorate Energy
  Conservation) Tel (65)
  68358032 email ng_kong_at_ema.gov.sg
  
• Mr Tan Hak Khoon, Dy Director (Consumer Safety)
  Tel [phone] email
  tan_hak_khoon_at_ema.gov.sg
  

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Electrical Installation Code Singapore

• Power Supply Ltd
• Mr Pang Boon Kiat, Manager, Installation Branch,
  Tel [phone]
  
• email boonkiat_at_spower.com.sg
• Ministry of Manpower
• Mr Hashim Mansoor, Senior Assistant Director,
• Construction Branch
  Tel [phone] email
  Hashim_MANSOOR_at_MOM.GOV.SG
  
• Productivity Standards Board
• Ms Tay Tung Ling
• Tel [phone]
• email taytungling_at_psb.gov.sg

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Electrical Installation Code Singapore

• Brief history
• SS CP 5
• started in 1977 and based on UKs Institution of
  Electrical Engineer (IEE) Wiring Regulations
  
• revised in 1988 and then 1998
• latest revision in 1998 was based on IEE Wiring
  Regulations 16th Edition (or BS 76711992
  Requirements for Electrical Installations)
  
• drawn up to ensure safety, especially from
  electric shock and fire in the use of electricity
  and related principally to the design, selection,
  erection, inspection and testing of electrical
  installations

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Electrical Installation Code Singapore

• some of the clauses in the IEE Wiring Regulations
  were amended to suit local conditions, indicated
  by the letter L immediately after the clause
  number
• Examples of significant changes are
• type of system earthing for electrical
  installations shall be TN-S system or TT system
  
• use of residual current circuit breaker having a
  rated residual operating current not exceeding
  30 mA and an operating time not exceeding 40 ms
  at a residual current of 150 mA for socket outlet
  and lighting circuits in domestic premises

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Electrical Installation Code Singapore

• switch for every 13A socket outlet
• where products are available under the Singapore
  Standard, the Singapore Standard No is used
  instead of the BS or IEC No
  

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Electrical Installation Code Singapore

• - SS CP 88 Part 1
• Formerly known as CP 44
• latest revision in 2001
• drawn up to protect persons and property against
  electrical hazards - supplement the general
  requirements of SS CP 5 in the use of temporary
  electrical installations in construction sites
• give guidance on good practice for the
  inspection, testing and maintenance of temporary
  electrical installations operating at voltages up
  to 1000 volts ac which are widely used in
  construction and building sites

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Electrical Installation Code Singapore

• Examples of significant changes in the lastest
  revisions are
  
• Use of TN-S system only for any temporary
  electrical installation taking supply from
  generating set(s)
  
• installation and earthing requirements of
  generating sets
  
• all circuits shall be protected by residual
  current devices
  
• all final circuits shall be protected by residual
  current circuit breakers or residual current
  devices
  
• adequate mechanical protection for cables and
  wiring installed at site
  

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Electrical Installation Code Singapore

• guidelines on the use of socket-outlet assembly
  (SOA) for the connection of portable equipment at
  locations where fixed socket-outlets may not be
  available
• guidelines on the use of extension cable for
  portable equipment
  
• prohibition on the use of cable armour or
  metallic cable shealth as protective conductor
  
• monthly inspection of temporary electrical
  installation by the competent person engaged by
  owner

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Electrical Installation Code Applicability
Singapore

• Is the code used by construction contractors on a
  local, regional or national basis?
  
• Both SS CP 5 and SS CP 88 Pt 1 are used by
  construction contractors on a national basis
  
• Possible alternative codes that are allowable
• compliance of SS CP 5 and SS CP 88 Pt 1 are
  mandatory requirements, they are aligned with BS
  76711992 Requirements for Electrical
  Installations

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Electrical Installation Code Applicability
Singapore

• Types of installations that require the use of
  the code
  
• SS CP 5 is applicable to all consumers
  electrical installations in industrial,
  commercial and domestic premises
  
• SS CP 88 Pt 1 is applicable to temporary
  electrical installations in construction and
  building sites
  
• The codes do not apply to electrical
  installations in electrical power stations,
  transmission or distribution plants, etc.

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Electrical Installation Code Applicability
Singapore

• New construction only? Or, does it also address
  maintenance
  
• The codes cover the design, selection, erection,
  inspection and testing of new electrical
  installations before they are put into service
  and also periodic inspection and testing of
  electrical installations during service.

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Electrical Installation Code Making Revisions
Singapore

• How often is the Code updated?
• As and when the need arises.
• Is the time period fixed or variable?
• Review every 5 years.
• Impact of external/international activities,
  organizations?
  
• Revision of code is to address the concerns and
  needs of the industries, wherever necessary,
  localised conditions will be included to ensure
  feasibility for compliance. Sufficient grace
  period will be given for compliance by the
  relevant industries.

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Electrical Installation Code Making Revisions
Singapore

• How do organizations and individuals
  participate?
  
• Singapore Productivity and Standards Board (PSB)
  is the national standards authority in Singapore.
  The drafting of standards is undertaken by
  technical committees who are technical experts in
  the specific fields. Industry associations,
  professional bodies, regulatory bodies, academic
  institutions and other relevant parties are
  invited to participate on these committees.

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Electrical Installation Code Making Revisions
Singapore

• What organization gives final approval?
• After the Technical Committee has approved the
  code, it will be released for public comments.
  The final approval will be given by the
  Electrical Electronic Standards Committee on
  behalf of the Standards Council of Singapore.
• What organization publishes and distributes?
• All Singapore Standards Codes of Practice are
  published and distributed by PSB.

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Electrical Installation Code Enforcement
Singapore

• Is it enforced in a legal process?
• Yes, compliance of both SS CP 5 and CP 88 are
  mandatory under the relevant regulations.
  
• Private or public sector enforcement?
• Enforcement by public sector with the
  participation of public electricity suppliers
  
• Uniform process throughout the economy?
• Yes

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Electrical Installation Code Enforcement
Singapore

• Evidence of compliance -- certificate issued?
• For electrical installation designed to take
  electricity supply from the the public
  electricity supply system, the competent person
  is required to certify fitness of the consumers
  electrical installation. The electricity
  supplier will conduct site inspection and if the
  installation is satisfactory, a statement of
  turn-on will be issued by the public electricity
  supplier and followed by turn-on of electricity
  supply.

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Electrical Installation Code Enforcement
Singapore

• For temporary electrical installations taking
  electricity supply from mobile generating set,
  the competent person has to certify fitness of
  the installation for the purpose of obtaining a
  licence to use or operate the installation from
  EMA.

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Electrical Installation Code Enforcement
Singapore

• What is the dispute settlement process?
• The competent person (licensed electrical worker,
  LEW) is responsible for his certification for the
  purpose of connection of electricity supply.
  Both the public electricity supplier and the
  public transmission licensee have the authority
  to refuse connection of electricity supply if
  they found the consumers electrical installation
  is unfit for connection to the public electricity
  supply system. The LEW has to make good the
  defects to the satisfaction of the public
  electricity licensees before connection of
  electricity is permitted.

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Electrical Installation Code Enforcement
Singapore

• What are the penalties of non-compliance?
• For electrical installations do not comply with
  the relevant code of practice or technical
  requirements of the public transmission licensee,
  the penalty to the consumers concerned would be
  refusal for connection of electricity supply to
  the consumers installations by the public
  electricity licensees. Appropriate disciplinary
  action will be taken by EMA if the LEW is found
  omission or negligence in his work.

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Electrical Installation Code Expectations for
the Future
Singapore

• New code development process envisioned?
• - In the next review of the code, there is an
  intention to focus on requirements of IEC 60364
  (Electrical installations of buildings.)
  
• Regional or national scope?
• - National scope

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Electrical Installation Code Expectations for
the Future
Singapore

• International code development projects?
• - The PSB Technical Committee will monitor the
  development of IEC Technical Committee 64
  (Electrical installations protection against
  electric shocks).

Electrical Safety Systems for the Asia-Pacific