Article 179. Nitrogen containing flexible bags
The conservator shall be set up in the main body of transformer and elephant room, and it shall be no pressure sealing type which the insulation oil does not touch air.
(The conservator for main body of transformer and elephant room can be shared.)
Moreover, the insulation oil of a diverter switch oil compartment is allowed to touch air. open( type), but the structure of the diverter switch oil compartment shall be the one which the cracked gas does not be mixed in main body of transformer oil.
Furthermore, the capacity of the conservator shall be large enough to hold the volume change of the oil by overload operation and ambient temperature.
Article 180. Consideration of repairing of the transformer
As stipulated in Technical Regulation.
Chapter 4 ELECTRICAL LIGHTING EQUIPMENT
Article 181. Scope of application
As stipulated in Technical Regulation.
Section 1 GENERAL
Article 182. Terminal of cables and wires
Connection of electric wire and equipment terminal
1.As for the connection between electric wire and equipment terminal, it shall be connected electrically and mechanically, also the connection shall not have exceeding tension.
2.The connection shall be tightened, and double nut and the spring washer shall be used when it is possible for the connection to be loosen by vibration etc.
3.The number can be connected is up to two for the terminal where two or more electric wires can be connected.
4.When terminal lug is used for the terminal of the equipment, electric wire shall be connected as the following.
(1)The number of the terminal lug which can be attached with one terminal is two pieces.
(2)Connect only one electric wire to a terminal lug.
(3)Attach an insulation cap or an insulation cover to a terminal lug without insulation covering.
5.When terminal lug is not used, the electric wire shall be wrapped firmly from 3/4 to 1 around the screw.
Article 183. Structure parts of lighting equipment
As for the metal material used for an instrument, it is desirable to finish up by painting or plating by the following.
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Outside surface and reflective surface is painted uniformly.
Table 183 Example of painting/plating for lighting equipment (Japanese case)
Usage |
Material |
|
|
Pretreatment *1 |
|
Final coating |
|||||
|
|
|
|
|
|
|
|
|
|
||
|
General |
Steel board |
|
|
Phosphate processing |
|
Amino |
alkyd resin |
|||
|
Zinc |
plating |
|
Phosphate |
processing |
or |
|||||
|
type |
|
baking finish |
|
|||||||
|
|
steel board |
|
|
plasma etching |
|
|
|
|
||
|
|
Steel board |
|
|
Phosphate |
processi |
|
|
|
||
|
|
|
|
and rustproof painting |
|
Acrylic resin or epoxy |
|||||
|
|
|
|
|
|
|
|||||
|
|
Zinc |
plating |
|
Phosphate |
processing |
or |
||||
Equipment |
|
steel board |
|
|
plasma etching |
|
modified |
|
lamineme |
||
Waterproof |
|
|
|
resin baking finish |
|||||||
|
Stainless |
stee |
|
|
|
|
|||||
|
|
|
|
|
|
|
|
||||
|
type |
(Painted) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- |
|
Transparent |
acry |
|
|
|
Stainless |
steel |
|
|
|
resin |
or |
transpar |
||
|
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|
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|
||||||
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(cleared) |
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|
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polyurethane |
re |
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|
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baking finish |
|
|
*1 In a pretreatment, each specification is removed grease.
Section 2 LIGHTS
Article 184. Requirement for installation of lights
Requirement for installation of lights
The illumination and the direction of office or room need to satisfy the requirements given in design documents, illumination may be referred to the following.
Table 184 The illumination standard of an office (Japanese case)
Illumination |
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|
Place |
|
Work |
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Designing, |
1,500 |
Office, |
business |
room, |
design |
room, drawing |
drawing, typing, |
|
|
|
entrance hall (daytime) |
|
|
calculating and |
||
750 |
|
|
|
|
|
|
keypunching |
|
|
- |
Office, conference room, print |
|
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|
|
|
|
||||
500 |
|
Reception room, |
room, telephone exchange room, |
|
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|
|
Waiting room, |
electronic calculator room, control |
|
|||
|
|
Dining room, |
room |
|
|
|
|
|
|
Cooking room |
Library, |
- |
|
||
200 |
|
|
- |
electric |
room, |
Lavatory, kettle, |
|
|
|
|
|
machine |
bathroom, |
- |
|
|
|
|
|
room, elevator |
corridor, stairway, |
|
|
|
|
Tea room, rest room, night-duty |
washroom, and |
|
|||
150 |
|
room, |
locker room, and warehouse |
toilet |
|
||
|
|
|
|
|
|
- |
|
75 |
|
Indoor emergency staircase |
|
|
|
||
30 |
|
|
|
|
|
|
|
43
Article 185. Strength of structures of lighting equipment
As stipulated in Technical Regulation.
Article 186. Adjustment of headlight
It is adjusted concerning the focus control of the illumination, usually, by the shape of light of perpendicular facing, but when the vertical is not used, the shape of light is irradiated onto a horizontal plane with the main body of the lighting inclined because of the maximum corner according to the design material, the tilt angle is corrected.
The error of this angle must not exceed 2 times.
Article 187. Lights of hermitic types and dust prevent types
In the place the insulation performance is possibly deteriorated by dust, the lighting of the hermitic type and the dust prevent types shall be used.
The switch, circuit breaker etc. are put into a box etc. to prevent dust from entering.
The example of installation is shown bellow.
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Use explosion resistant |
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||
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switch or install the switch |
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in the dust-proof box |
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Install the cutout switch |
|
||
|
|
|
outside of the room or in the |
|
||
|
|
|||||
Use keyless socket |
|
|
dust-proof box |
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Install the electric bulb in the explosion resistant globe
Figure 187 Example of Installation of lights, etc. in explosive room
Article 188. Installation of lights in explosive room
The facilities such as electrical machinery and apparatuses of the room where dangerous material exists are installed as the follows.
1.The lightning equipment is durably installed either directly or with the hanging pipe etc. to building parts.
2.The incandescence light and the discharge lamp shall have protective cover so that there is not fear of fire to the dangerous materials.
44
3.The light that is moved to use shall be protected by armor.
4.Electric wire and electric machinery and apparatuses should be connected to the connection part by using a lock nut, a spring washer, etc. not to loosen by vibration, and should be connected completely.
Article 189. Connection of lights to wires in doors
As stipulated in Technical Regulation.
Article 190. Earthing Light’s body
As stipulated in Technical Regulation.
Article 191. Wire at lamp socket
For the internal wiring part passing through metal parts, laying pipe etc. are installed and protected to prevent electric wire coating from being damaged.
The tension end is performed by cord hanging instrument such as cord fasteners so that it prevents direct weight from the terminal.
Article 192. Prohibition of connection of wires inside stands and ducts
As stipulated in Technical Regulation.
Article 193. Rods for hanging lamps
(Reference)
When the down light instrument exceeds 3kg, the structure of bolt hanging shall be made.
Article 194. Wires supplying for public lights
As stipulated in Technical Regulation.
Article 195. Insulation of wires supplying for lighting equipment
As stipulated in Technical Regulation.
Article 196. Wires used for local lighting equipment
For electric wire of local lighting equipment, the important matters below shall be satisfied.
(1)Wires must be placed on stands or be protected from mechanical forces.
(2)Wires laid inside parts with hinges must not be strained or twisted.
(3)Wires passing through holes of stands must have the diameter of at least 8mm. Holes could be out of shape locally within the diameter of at least 6 mm. At the holes through which wires are passing, it is essential to use insulating bolted pipes.
(4)Mobile structures of lighting equipment must be prevented from removing or swaying.
45