Electrical Codes, Standards, and Regulations
This domain tests your familiarity with the structure and intent of electrical standards and regulations, not memorisation of every clause. Know that codes set minimum requirements for safety, and that the wiring regulations (e.g., IEC 60364 family, and national adoptions) organise requirements around protection against electric shock, thermal effects, overcurrent, and isolation.
Understand the hierarchy: international standards (IEC), regional/national adoptions, and project specifications. Know the meaning of key terms: "shall" (mandatory), "should" (recommendation), and "may" (permitted). Recognise that standards are updated periodically and that the edition applicable to a project is usually fixed by contract.
Familiarise yourself with the concept of the "competent person," inspection and testing requirements (initial verification, periodic inspection), and certification/documentation (test certificates, schedules of test results). Know that design calculations, discrimination studies, and as-built drawings form part of the compliance record.
Rule of thumb: In exam questions, if a clause uses "shall," it is a mandatory requirement; if it uses "should," it is guidance. When a question asks which edition applies, the answer is normally the edition cited in the contract or the edition in force at the design date - not necessarily the newest.
Traps: assuming the latest edition always applies regardless of contract; confusing "guidance" with "requirement"; and treating inspection and testing as optional rather than mandatory before energisation.