Frequently Asked Questions

About CCC What is Cable Colour Code ("CCC")? What is the cable colour code currently being used for fixed electrical installations in Hong Kong? What is the new cable colour code to be used for fixed electrical installations in Hong Kong? Why should the cable colour code in Hong Kong be changed? When will the new cable colour code be implemented in Hong Kong? Will there be any grace period in changing over from the existing cable colour code to the new cable colour code in Hong Kong? During the grace period, which cable colour codes can be used? What is the CCC Working Group? What Task Groups are set up under the CCC Working Group, and what are their functions? How will a registered electrical contractor (REC) be affected by the cable colour change? How will a consultant be affected by the cable colour change? How will a property developer be affected by the cable colour change? How will a registered electrical worker (REW) be affected by the cable colour change? How will a trade worker be affected by the cable colour change? Does the cable colour change apply to the existing fixed electrical installations? Does the cable colour change apply to the addition and alteration works to be carried out on the existing fixed electrical installations? Installation Guidelines Does the new cable colour code comply with the requirements of any national and international standards? What precautions should be taken when working at the cable colour change interfaces? How should the circuits for new fixed electrical installations be wired under the new cable colour code? What are the requirements of the warning notice to be displayed where cables in new cable colour code are installed in an existing fixed electrical installation with old colour coded cables? What are the additional marking / label requirements at the interface between new and old colour coded cables for single-phase circuits in existing fixed electrical installations? What are the additional marking / label requirements at the interface between new and old colour coded cables for three-phase circuits in existing fixed electrical installations? Cable Supply Evaluation Which types of cables in Hong Kong will be affected by the cable colour change? What does extra low voltage in Hong Kong means, according to the Electricity Ordinance (Cap. 406)? What does low voltage in Hong Kong means, according to the Electricity Ordinance (Cap. 406)? What does high voltage in Hong Kong means, according to the Electricity Ordinance (Cap. 406)? Which country is the main source of origin supplying low voltage cables to Hong Kong? Which two certification bodies are commonly adopted by the trade in Hong Kong for certifying the safety compliance or quality assurance of electric cables? In UK, when does the old cable colour code become obsolete? What are the advantages to cable supply and cable price in Hong Kong in adopting the new cable colour code? CCC Training Is it a must for electrical workers to attend new cable colour code training? What training courses can electrical workers join? How can a registered electrical worker (REW) make sure that his new cable colour code training has been recorded by EMSD? Will EMSD keep the training record of non-registered electrical workers? What can trade members do if they have difficulties in arranging new cable colour code training? I am a new REW applicant. Can I complete a new CCC training on the web? I have been trained on the new CCC through the CCC webcorner. How can I check my CCC training record kept in EMSD? I have been trained on the new CCC through a valid training course, instead of through the CCC webcorner. How can I check my CCC training record kept in EMSD?