S-1 — المواصفات العامة للتركيبات الكهربائية
G ملحقات الأسلاك
الصفحة 35 في الوثيقة الأصلية
عرض PDFG. WIRING ACCESSORIES:
G.1. 1 STANDARDS:
Wiring accessories shall comply with the following standards as appropriate:-
IEC/BS EN 60669-1, 2
Switches for household and similar fixed -electrical
installations
BS 67 Specification for ceiling roses
IEC/BS EN 60670-1
Boxes and enclosures for electrical accessories for
household and similar fixed electrical installations - Part 1:
General requirements
BS EN 55014-1
Electromagnetic compatibility. Requirements for
household appliances, electric tools and similar apparatus
Emission
BS 1363 13 A plugs, socket outlets, adapters and connection units
IEC/BS EN 60309
Plugs, socket-outlets and couplers for industrial purposes
IEC/BS EN 61558 Safety of power transformers, power supplies, reactors and
similar products - Part 1: General requirements and tests
BS 1362 Specification for general purpose fuse links for domestic
and similar purposes (primarily for use in plugs)
BS 4662 Boxes for flush mounting of electrical accessories.
Requirements, test methods and dimensions
BS 546
Specification for Two-pole and earthing-pin plugs, socket-
outlets and socket-outlet adaptors
BS 5733 General requirements for electrical accessories
BS 4177 Specification for cooker control units
IEC/BS EN 61184 Bayonet lamp holders
IEC/BS EN 60238 Edison screw lamp holders
G.1.2 All individual items of materials shall be of the same make throughout the project unless
specifically approved by the Engineer.
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G.2 SINGLE POLE SWITCHES:
G.2.1 For Indoor Use:
a) The switches for indoor use shall be of the grid type.
b) The switch cover shall be brass finished matt chrome. The dolly or rocker shall be
insulated with ivory finish.
c) The switch shall be rated 5 or 15 amps. as required. The grid shall be provided with
suitable earthing terminal.
G.2.2 For Outdoor Use:
a) The switches for outdoor use shall be water-tight and metal clad.
b) The case shall be of robust cast iron and galvanized finish or die cast aluminum.
c) The rating of switch to be 5or 15 amps as required
G.3 DOUBLE POLE SWITCHES:
G.3.1 The double pole switches shall be with indication neon lamps and shall berated 20amps.
G.3.2 The face plate shall be of brass finished matt chrome and shall be engraved "WATER
HEATER", "WATER COOLER", "AIR CONDITION", "INCINERATOR", as required.
G.3.3 The dolly or rocker shall be insulated and ivory finish.
G.4 PUSH BUTTON SWITCHES FOR LIGHT:
G.4.1 Push button switches for the operation of contactor controlled lights shall be of the push to make
and push to break type.
G.4.2 The push button plate shall be finished in the same manner as light switch plates.
G.5 BELL PUSHES:
G.5.1 Bell push for indoor use shall have a cover of brass finished matt chrome and shall be connected
to the earth.
G.5.2 The push shall be insulated and ivory finish marked with bell symbol.
G.6 SOCKETS & PLUGS:
G.6.1 For Indoor Use(240 Volts)
a) The 13A switched socket outlet shall be 3 pin rectangular type.
b) The 15A switched socket shall be 3 pin round type.
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c) The face plate of the switch socket shall be of brass finished matt chrome and shall be
connected to the earth terminal of the socket.
d) The dolly or rocker of the switch shall be insulated and ivory finish.
G.6.2 For Outdoor and water tight Use (240 Volts)
a) Switched socket outlet shall be water tight, 3 -pin, rectangular pins for 13 amperes, and
round pins for 15/16 amperes rating.
b) The case shall be of robust cast iron and finished galvanized or die cast aluminum.
c) Each socket shall be complete with metal clad plug top.
d) A screw type metal cover shall be provided for covering the socket outlet when the plug
top is removed. The cover shall be chained to the case of the socket.
G.7 THREE PHASE SOCKET AND PLUGS:
G.7.1 Three phase socket outlets shall be 5 pin (3 phase + Neutral + Earth).
G.7.2 Three phase socket outlet shall be combined with Switch so interlocked with the plug that the
plug cannot be withdrawn or inserted with the switch in the ''ON" position.
G.7.3 The current rating of three phase socket shall be 16, 32, 63, 125A.
G.7.4 Three phase socket used indoor shall be splash-proof (IP-X4).
G.7.5 Three phase socket used outdoor shall be water tight (IP-X7).
G.7.6 One matching plug shall be furnished with each socket outlet installed.
G.8 COOKER COTROL UNITS:
G.8.1 Cooker control unit incorporating a 45amps double pole main switch and a13 amps switched
socket outlet and neon indicator lights for both cooker and socket.
G.8.2 The cooker control unit shall be surface or flush mounted as required.
G.9 DIMMER SWITCHES:
G.9.1 The dimmer switches shall be designed to meet the requirement of IEC/BS EN 60669 for
switches and IEC/BS EN 61000-4-3 for radio frequency interference suppressed.
G.9.2 Dimmer switch shall be for the control of incandescent lamps or for fan speed control. The
rating of the dimmer switch shall be as shown in the schedules or drawing.
G.9.3 The dimmer switch shall consist of a control knob of spun aluminum, heat resisters back cover
and face plate of brass finished matt chrome. The operation of the knob shall be in a clock -wise
rotation for "ON" position."ON" and "OFF" positions shall be clearly marked on the face plate.
The dimmer switch shall be switched off with definite click dimmer switch with combined push
on/push off switch and rotary dimmer shall also be accepted.
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G.9.4 The dimmer switch used for control incandescent lamps shall be suitable for fixing on standard
switch boxes.
G.l0 JUNCTION BOX:
G.l0.l The junction box shall be complete with a terminal block suitable for connecting up to10 mm²
copper conductor (phase, neutral and earth) and an all insulated moulded white cover plate.
G.10.2 The cover plate shall be raised for connecting outgoing cable.
G.11 FUSED SPUR-BOX:
G.11.1 The fused spur-box shall be flush type, unswitched and suitable for 240 volts, single phase, 50Hz.
supply.
G.11.2 The spur-box shall have a fuse base with carrier and 13 amps fuse link complying to BS 1362.
During the replacement of a fuse no live metal shall be touchable.
G.11.3 The spur-box shall be provided with earth terminal. The terminals shall accommodate three core
4mm2 cables.
G.11.4 The front plate of the spur -box shall be brass finished m att chrome and shall have outlet for
flexible cable.
G.l2 LAMP HOLDERS:
G.12.1 Lamp holders shall be so designed and constructed that in normal use, their performance is reliable
and without danger to the user or surroundings.
G.12.2 Lamp holders shall be in general of the Bayonet cap up to 200 watt and Edison screw E 40 for
lamps of 300 watts and above.
G.12.3 Lamp holders shall be in general of the all insulated material heat resisting suitable for conditions
up to a lamp cap temperature.
165°C temperature mark T 1for Bayonet cap of cord grip or open shade
210° C temperature mark T 2 for Bayonet cap of cord grip of closed shade.
G.12.4 Bayonet cap metal lamp holders, Edison screw E27 either all insulated or metal may be accepted in
relevant cases.
G.13 CEILING ROSES:
G.13.1 Ceiling rose shall be of three or four plate type as required, the terminals shall be clearly marked to
indicate the phase (or line), neutral and earth conductors.
G.13.2 The base fixing s crew hole slotted to accept a variation in fixing. Screw centers are suitable for
mounting over small circular conduit boxes.
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G.l4 MOUNTING BOXES:
G.14.1 Mounting boxes shall be one gang or two as specified and shall be manufactured from hot-dip
galvanized steel.
G.14.2 Each box shall have brass earth terminal fitted in base and include ample knockouts and
adjustable lug.
G.15 BELL INDICATORS:
Bell Indicators shall be of bakelite base and cover complete with brass fixing screws,
fitted with glass screens, suitable for operation at A.C. up to 12 volts, 50 Cycles.
G.16 INDOOR BELLS:
Indoor bells shall be electric tumbler metal framed, bakelite case, round gong
approximately 3" diameter operated at low voltage A.C. (up to 12 volts) 50 cycles.
G.17 OUTDOOR BELLS:
Outdoor electric bells shall be electric tumbler in weather-proof metal case no less than
6" diameter round gong, suitable for operating on 240 volts, 50 cycles, 1 phase A.C.
Supply.
G.18 BELL TRANSFORMERS:
Bell Transformers shall be of bakelite base and cover, primary coil wound for input 240 volts,
50 cycles, 1 phase A.C. supply. Secondary coils for output of up to 12 volts, A.C. with fuses in
two outer L.V. leads, core connected to earth terminals, all complying with the latest relevant
IEC/BS specifications.
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G.1. 1 STANDARDS:
Wiring accessories shall comply with the following standards as appropriate:-
IEC/BS EN 60669-1, 2
Switches for household and similar fixed -electrical
installations
BS 67 Specification for ceiling roses
IEC/BS EN 60670-1
Boxes and enclosures for electrical accessories for
household and similar fixed electrical installations - Part 1:
General requirements
BS EN 55014-1
Electromagnetic compatibility. Requirements for
household appliances, electric tools and similar apparatus
Emission
BS 1363 13 A plugs, socket outlets, adapters and connection units
IEC/BS EN 60309
Plugs, socket-outlets and couplers for industrial purposes
IEC/BS EN 61558 Safety of power transformers, power supplies, reactors and
similar products - Part 1: General requirements and tests
BS 1362 Specification for general purpose fuse links for domestic
and similar purposes (primarily for use in plugs)
BS 4662 Boxes for flush mounting of electrical accessories.
Requirements, test methods and dimensions
BS 546
Specification for Two-pole and earthing-pin plugs, socket-
outlets and socket-outlet adaptors
BS 5733 General requirements for electrical accessories
BS 4177 Specification for cooker control units
IEC/BS EN 61184 Bayonet lamp holders
IEC/BS EN 60238 Edison screw lamp holders
G.1.2 All individual items of materials shall be of the same make throughout the project unless
specifically approved by the Engineer.
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G.2 SINGLE POLE SWITCHES:
G.2.1 For Indoor Use:
a) The switches for indoor use shall be of the grid type.
b) The switch cover shall be brass finished matt chrome. The dolly or rocker shall be
insulated with ivory finish.
c) The switch shall be rated 5 or 15 amps. as required. The grid shall be provided with
suitable earthing terminal.
G.2.2 For Outdoor Use:
a) The switches for outdoor use shall be water-tight and metal clad.
b) The case shall be of robust cast iron and galvanized finish or die cast aluminum.
c) The rating of switch to be 5or 15 amps as required
G.3 DOUBLE POLE SWITCHES:
G.3.1 The double pole switches shall be with indication neon lamps and shall berated 20amps.
G.3.2 The face plate shall be of brass finished matt chrome and shall be engraved "WATER
HEATER", "WATER COOLER", "AIR CONDITION", "INCINERATOR", as required.
G.3.3 The dolly or rocker shall be insulated and ivory finish.
G.4 PUSH BUTTON SWITCHES FOR LIGHT:
G.4.1 Push button switches for the operation of contactor controlled lights shall be of the push to make
and push to break type.
G.4.2 The push button plate shall be finished in the same manner as light switch plates.
G.5 BELL PUSHES:
G.5.1 Bell push for indoor use shall have a cover of brass finished matt chrome and shall be connected
to the earth.
G.5.2 The push shall be insulated and ivory finish marked with bell symbol.
G.6 SOCKETS & PLUGS:
G.6.1 For Indoor Use(240 Volts)
a) The 13A switched socket outlet shall be 3 pin rectangular type.
b) The 15A switched socket shall be 3 pin round type.
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c) The face plate of the switch socket shall be of brass finished matt chrome and shall be
connected to the earth terminal of the socket.
d) The dolly or rocker of the switch shall be insulated and ivory finish.
G.6.2 For Outdoor and water tight Use (240 Volts)
a) Switched socket outlet shall be water tight, 3 -pin, rectangular pins for 13 amperes, and
round pins for 15/16 amperes rating.
b) The case shall be of robust cast iron and finished galvanized or die cast aluminum.
c) Each socket shall be complete with metal clad plug top.
d) A screw type metal cover shall be provided for covering the socket outlet when the plug
top is removed. The cover shall be chained to the case of the socket.
G.7 THREE PHASE SOCKET AND PLUGS:
G.7.1 Three phase socket outlets shall be 5 pin (3 phase + Neutral + Earth).
G.7.2 Three phase socket outlet shall be combined with Switch so interlocked with the plug that the
plug cannot be withdrawn or inserted with the switch in the ''ON" position.
G.7.3 The current rating of three phase socket shall be 16, 32, 63, 125A.
G.7.4 Three phase socket used indoor shall be splash-proof (IP-X4).
G.7.5 Three phase socket used outdoor shall be water tight (IP-X7).
G.7.6 One matching plug shall be furnished with each socket outlet installed.
G.8 COOKER COTROL UNITS:
G.8.1 Cooker control unit incorporating a 45amps double pole main switch and a13 amps switched
socket outlet and neon indicator lights for both cooker and socket.
G.8.2 The cooker control unit shall be surface or flush mounted as required.
G.9 DIMMER SWITCHES:
G.9.1 The dimmer switches shall be designed to meet the requirement of IEC/BS EN 60669 for
switches and IEC/BS EN 61000-4-3 for radio frequency interference suppressed.
G.9.2 Dimmer switch shall be for the control of incandescent lamps or for fan speed control. The
rating of the dimmer switch shall be as shown in the schedules or drawing.
G.9.3 The dimmer switch shall consist of a control knob of spun aluminum, heat resisters back cover
and face plate of brass finished matt chrome. The operation of the knob shall be in a clock -wise
rotation for "ON" position."ON" and "OFF" positions shall be clearly marked on the face plate.
The dimmer switch shall be switched off with definite click dimmer switch with combined push
on/push off switch and rotary dimmer shall also be accepted.
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G.9.4 The dimmer switch used for control incandescent lamps shall be suitable for fixing on standard
switch boxes.
G.l0 JUNCTION BOX:
G.l0.l The junction box shall be complete with a terminal block suitable for connecting up to10 mm²
copper conductor (phase, neutral and earth) and an all insulated moulded white cover plate.
G.10.2 The cover plate shall be raised for connecting outgoing cable.
G.11 FUSED SPUR-BOX:
G.11.1 The fused spur-box shall be flush type, unswitched and suitable for 240 volts, single phase, 50Hz.
supply.
G.11.2 The spur-box shall have a fuse base with carrier and 13 amps fuse link complying to BS 1362.
During the replacement of a fuse no live metal shall be touchable.
G.11.3 The spur-box shall be provided with earth terminal. The terminals shall accommodate three core
4mm2 cables.
G.11.4 The front plate of the spur -box shall be brass finished m att chrome and shall have outlet for
flexible cable.
G.l2 LAMP HOLDERS:
G.12.1 Lamp holders shall be so designed and constructed that in normal use, their performance is reliable
and without danger to the user or surroundings.
G.12.2 Lamp holders shall be in general of the Bayonet cap up to 200 watt and Edison screw E 40 for
lamps of 300 watts and above.
G.12.3 Lamp holders shall be in general of the all insulated material heat resisting suitable for conditions
up to a lamp cap temperature.
165°C temperature mark T 1for Bayonet cap of cord grip or open shade
210° C temperature mark T 2 for Bayonet cap of cord grip of closed shade.
G.12.4 Bayonet cap metal lamp holders, Edison screw E27 either all insulated or metal may be accepted in
relevant cases.
G.13 CEILING ROSES:
G.13.1 Ceiling rose shall be of three or four plate type as required, the terminals shall be clearly marked to
indicate the phase (or line), neutral and earth conductors.
G.13.2 The base fixing s crew hole slotted to accept a variation in fixing. Screw centers are suitable for
mounting over small circular conduit boxes.
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G.l4 MOUNTING BOXES:
G.14.1 Mounting boxes shall be one gang or two as specified and shall be manufactured from hot-dip
galvanized steel.
G.14.2 Each box shall have brass earth terminal fitted in base and include ample knockouts and
adjustable lug.
G.15 BELL INDICATORS:
Bell Indicators shall be of bakelite base and cover complete with brass fixing screws,
fitted with glass screens, suitable for operation at A.C. up to 12 volts, 50 Cycles.
G.16 INDOOR BELLS:
Indoor bells shall be electric tumbler metal framed, bakelite case, round gong
approximately 3" diameter operated at low voltage A.C. (up to 12 volts) 50 cycles.
G.17 OUTDOOR BELLS:
Outdoor electric bells shall be electric tumbler in weather-proof metal case no less than
6" diameter round gong, suitable for operating on 240 volts, 50 cycles, 1 phase A.C.
Supply.
G.18 BELL TRANSFORMERS:
Bell Transformers shall be of bakelite base and cover, primary coil wound for input 240 volts,
50 cycles, 1 phase A.C. supply. Secondary coils for output of up to 12 volts, A.C. with fuses in
two outer L.V. leads, core connected to earth terminals, all complying with the latest relevant
IEC/BS specifications.
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