What is the nominal low-voltage supply declared by DEWA for consumer electrical installations in Dubai?
Dewa Regulations
Question · Easy
Which regulated activity does this DM electrical technical-staff review target?
Compliance, Supply, Approvals & Metering
Flashcard
Under the DEWA system, where is the neutral conductor solidly earthed?
Earthing Protection
Question · Medium
The supply utility named in Part G of the emirate's building code, whose service cable armour generally serves as the protective conductor at a nominal 230/400 V ± 10%, 50 Hz.
Supply and metering
Guess the Term
Chapter 1: DEWA Regulations and Approval Procedures
1.1 DEWA Low Voltage Supply Characteristics & Network Parameters
Study guide
Cheat sheet
Per DEWA regulations, socket-outlets of which rating must generally be protected by a 30 mA RCD?
Read the clue and guess the term in 6 tries.
Game
What education and experience routes does Dubai Municipality list for activity 453014?
Cables concealed in a wall at a depth of less than 50 mm must be provided with which additional protection?
The panel at the point of supply that contains the incoming breaker and feeds downstream panels.
In BS 7671, what is the maximum disconnection time for a 230 V final circuit not exceeding 63 A on a TN system?
Is DEWA electrical-contractor enrolment the same as the Dubai Municipality DEQ technical-staff exam?
Which IEC/BS conductor colour identifies the protective earth (PE) conductor?
Installation Practice
Intermediate panel whose associated metering must be housed with it in a separate switchroom.
1.2 DEQ Qualification Scope and Applicant Requirements
In the IEC harmonised colour code, which colour is used for the neutral conductor?
Swap tiles to line up three of the same term.
Term Match
What is DEWA's nominal low-voltage supply system?
What is the maximum permitted voltage drop for a lighting circuit measured from the origin of the installation?
Cable Sizing Load
Fully withdrawable four-pole incoming device required where an LV panel connects directly to a transformer.
What is the maximum permitted voltage drop for power (non-lighting) circuits under BS 7671?
Which rules prevail if another referenced wiring standard conflicts with a DEWA requirement?
Which qualification combination does Dubai Municipality list for technical staff in Electrical Fitting Contracting activity 453014?
The combined power requirement of every item attached to an installation, used to decide whether a substation is needed.
Cable sizing
1.3 Drawing Approval, NOCs, Inspection & Connection Workflows
Which statement correctly distinguishes this technical-staff exam from DEWA contractor enrolment?
Flip two cards at a time to find matching terms.
Term Pairs
When must electrical design details be submitted to DEWA?
What is the design fault level (short-circuit rating) within a DEWA substation, on which downstream equipment ratings are based?
Substation Transformer
Question · Hard
Maximum ___: summation of all electrical power drawn during a specified period, in kW or kVA, which divided by the total connected load gives a factor of the same name.
Per DEWA, where must the main electrical switch room generally be located within a building?
Why must supply availability be confirmed early?
Which statement about the use of the main electrical switch room is correct under DEWA regulations?
Automatic switch allowed as the three-pole incomer for a capacitor bank panel.
Wiring and equipment
1.4 Metering Enclosures, Labelling & Distribution Point Rules
For a TN-system final circuit supplying fixed equipment rated above 32 A, what maximum disconnection time does BS 7671 permit?
Find five hidden terms in a grid of letters.
Term Search
Who decides the point of electrical supply to a project?
When several cables are grouped together in a single conduit or tray, what must be applied to their current-carrying capacity?
Name the Dubai code uses for the separate green-and-yellow insulated copper conductor that every circuit in the MDBs, SMDBs and final DBs must have.
Bonding and tripping
High ambient temperature in Dubai affects cable current ratings in which way, and how is it accounted for?
How should a main switch be identified?
What is the standard maximum continuous operating temperature of a thermoplastic (PVC) insulated cable conductor?
Protective switch that opens when the outgoing and returning flows no longer balance, a category covering units with and without integral overcurrent protection.
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